CINXE.COM
Tantalum (Ta) | AMERICAN ELEMENTS ®
<!DOCTYPE html> <html lang="en"><!-- InstanceBegin template="/Templates/elements.dwt" codeOutsideHTMLIsLocked="false" --> <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# article: http://ogp.me/ns/article#"> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta property="og:site_name" content="American Elements: The Materials Science Company"/> <meta property="og:image" content="https://www.americanelements.com/images_graphics/American-Elements-Company-Logo.png"/> <meta property="og:type" content="article"/> <!-- InstanceBeginEditable name="meta" --> <meta property="article:section" content="Elements" /> <!-- InstanceEndEditable --> <!-- InstanceBeginEditable name="doctitle2" --> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta property="og:site_name" content="American Elements: The Materials Science Company"/> <meta property="og:image" content="https://www.americanelements.com/images_graphics/American-Elements-Company-Logo.png"/> <meta property="og:type" content="article"/> <meta property="article:section" content="Elements" /> <meta property="og:title" content="Tantalum (Ta) | AMERICAN ELEMENTS ® " /> <meta property="og:description" content="Tantalum (Ta) chemical structure, technical & safety data, discovery, uses" /> <meta property="og:url" content="https://www.americanelements.com/ta.html" /> <link rel="canonical" href="https://www.americanelements.com/ta.html" /> <link rel="amphtml" href="https://www.americanelements.com/amp.tantalum-ta-products-element-information.html" /> <title>Tantalum (Ta) | AMERICAN ELEMENTS ® </title> <meta name="description" content="Tantalum (Ta) chemical structure, technical & safety data, discovery, uses" /> <meta name="keywords" content="Tantalum Element Information" /> <style type="text/css"> .banner {background-image: url("headers/elements/tantalum-banner.jpg"); } </style> <!-- InstanceEndEditable --> <style type="text/css"> .element-item2{color:#FFF;border:7px solid #FFF;width:120px;height:120px;text-align:center;position:absolute;bottom:20px;right:15px;box-shadow: 0px 0px 6px #000;text-shadow:0px 1px 2px #000;}.element-item2.opaque {text-shadow:none} /*.alkali {background-color: #E72B30}.alkaline-earth{background-color:#FF8C00;}.actinoid,.lanthanoid{background-color:#45A557;}.transition{background-color:#ECBC0E;}.post-transition{background-color:#68BCFF;}.diatomic{background-color:#152F7B;}.metalloid{background-color:#40BA8F;}.halogen{background-color:#E1A6C8;}.noble-gas{background-color:#A273AE;}.radioactive{background-color: #999}.inverse{background-color: unset;text-shadow: 0px 0px 5px #000;opacity: 1}.inverse-opaque{background-color: #FFF}*/.inverse {color:#111;border-color:#111;text-shadow:none;box-shadow:none; background-color:#FFF}.number{position:absolute;top:2px;right:5px;font-size:17px;font-weight:700 }.symbol2,.symbol2-sm,.weight{position:relative;text-align:center;display:block }.symbol2,.symbol2-sm{font-weight:700;line-height:65px;margin-top:15px }.symbol2{font-size:50px }.symbol2-sm{font-size:50px;letter-spacing:0 }.weight{font-size:15px;margin-top:0;}@media(min-width:1400px){.element-item2{height:160px; width:160px;right:25px}.symbol2,.symbol2-sm{font-size:65px;margin-top:35px}.number{font-size:19px}.weight{font-size:17px;margin-top:7px}}@media (max-width:767px){.element-item2{height:105px;width:105px; }.symbol2,.symbol2-sm{line-height:55px;margin-top:13px;font-size:45px }.number{font-size:16px}.weight{font-size:14px}}@media (max-width:600px){.element-item2{height:75px;width:75px;border-width:5px;top:3px;right:10px}.symbol2{font-size:35px;line-height:55px;margin-top:7px }.symbol2,.symbol2-sm{margin-top:5px }.number{top:1px;right:3px;font-size:13px }.weight{display:none }}@media (max-width:400px) {.number{display:none }.element-item2 {height:40px;width:40px;top:3px;right: 3px;border-width:3.5px}.symbol2 {font-size:18px;line-height:28px;margin-top:5px;}} </style> <link href="https://fonts.googleapis.com/css?family=Roboto+Condensed:300,700&display=swap" rel="stylesheet"> <link rel="stylesheet" href="https://www.americanelements.com/css/slippry.css" /> <style type="text/css"> .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.collapse{display:none}.collapse.in{display:block} .element-item2 {top:15px !important; z-index:100} .sy-caption-wrap { display:none !important } </style> <noscript> <link href="https://www.americanelements.com/css/noscript.css" media="all" rel="stylesheet" type="text/css" /> </noscript> <link rel="apple-touch-icon" href="https://www.americanelements.com/apple-touch-icon.png" /> <link rel="apple-touch-icon" sizes="57x57" href="https://www.americanelements.com/apple-touch-icon-57x57.png" /> <link rel="apple-touch-icon" sizes="72x72" href="https://www.americanelements.com/apple-touch-icon-72x72.png" /> <link rel="apple-touch-icon" sizes="76x76" href="https://www.americanelements.com/apple-touch-icon-76x76.png" /> <link rel="apple-touch-icon" sizes="114x114" href="https://www.americanelements.com/apple-touch-icon-114x114.png" /> <link rel="apple-touch-icon" sizes="120x120" href="https://www.americanelements.com/apple-touch-icon-120x120.png" /> <link rel="apple-touch-icon" sizes="144x144" href="https://www.americanelements.com/apple-touch-icon-144x144.png" /> <link rel="apple-touch-icon" sizes="152x152" href="https://www.americanelements.com/apple-touch-icon-152x152.png" /> <link rel="apple-touch-icon" sizes="180x180" href="https://www.americanelements.com/apple-touch-icon-180x180.png" /> <link rel="shortcut icon" href="https://www.americanelements.com/AE-Logo-48.ico" /> <!--[if lt IE 7]> <link href="css/ie67.css" rel="stylesheet" media="all" /> <![endif]--> <link href="https://www.americanelements.com/css/AE.css" rel="stylesheet" media="all" /> <!--[if lt IE 9]> <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script> <![endif]--> </head> <body> <!-- Google Tag Manager --> <noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-NHBD3H" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= '//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-NHBD3H');</script> <!-- End Google Tag Manager --> <!--ZOOMSTOP--> <a href="#page-content" class="sr-only">Skip to Main Content</a><nav class="navbar navbar-static-top"> <div class="navbar-header"> <a class="navbar-brand" aria-label="Return to Home" title="AMERICAN ELEMENTS: The Materials Science Company" href="https://www.americanelements.com"> <span id="logo" class="american-elements-logo"><span class="sr-only notranslate">American Elements: The Materials Science Company™ | Certified bulk & lab quantity manufacturer of metals, chemicals, nanoparticles & other advanced materials</span></span></a> <nav id="primary_nav_wrap"><ul><li><a href="https://www.americanelements.com/company.html">Our Manufacturing</a></li><li class="nolink"><a class="top" href="#">Products</a> <ul> <li><a href="https://www.americanelements.com/products-by-element">Elements, Products by</a></li><li><a href="https://www.americanelements.com/life-science-organic-chemistry">Life Sciences</a></li><li><a href="https://www.americanelements.com/2d-materials">2D Materials</a></li><li><a href="https://www.americanelements.com/additive-manufacturing-3d-printing">Additive Manufacturing & 3D Printing</a></li><li><a href="https://www.americanelements.com/alloys.html">Alloys & Alloy Forms</a></li><li><a href="https://www.americanelements.com/Battery-Technology.html">Battery Materials</a></li><li><a href="https://www.americanelements.com/catalysts">Catalysts</a></li><li><a href="https://www.americanelements.com/ceramics.html">Ceramics</a></li><li><a href="https://www.americanelements.com/chemicals.html">Chemicals & Salts</a></li><li><a href="https://www.americanelements.com/dental-materials.html">Dental Materials</a></li><li><a href="https://www.americanelements.com/electronics-materials.html">Electronics Materials</a></li><li><a href="https://www.americanelements.com/foams.html">Foams</a></li><li><a href="https://www.americanelements.com/fuel-cell-materials.html">Fuel Cell Materials</a></li><li><a href="https://www.americanelements.com/fusion-energy">Fusion Energy</a></li><li><a href="https://www.americanelements.com/optical-materials.html">Glass Manufacturing</a></li><li><a href="https://www.americanelements.com/green-technology-alternative-energy.html">Green Technology</a></li><li><a href="https://www.americanelements.com/Ultra_high_purity_metals_powders.htm">High Purity Materials</a></li><li><a href="https://www.americanelements.com/Hydrogen-Storage.html">Hydrogen Storage</a></li><li><a href="https://www.americanelements.com/isotopes.html">Isotopes</a></li><li><a href="https://www.americanelements.com/optical-materials.html">Laser Crystals</a></li><li><a href="https://www.americanelements.com/Bio-Medical.html">Life Sciences & Biomaterials</a></li><li><a href="https://www.americanelements.com/metals.html">Metals & Metal Forms</a></li><li><a href="https://www.americanelements.com/metallurgy.html">Metallurgy</a></li><li><a href="https://www.americanelements.com/nanomaterials-nanoparticles-nanotechnology.html">Nanomaterials</a></li><li><a href="https://www.americanelements.com/life-science-organic-chemistry">Organic Chemicals</a></li><li><a href="https://www.americanelements.com/organometallics.html">Organometallics</a></li><li><a href="https://www.americanelements.com/oxides.html">Oxides</a></li><li><a href="https://www.americanelements.com/pigments-coatings.html">Pigments & Coatings</a></li><li><a href="https://www.americanelements.com/rare-earths.html">Rare Earths</a></li><li><a href="https://www.americanelements.com/research-and-development.html">Research & Development</a></li><li><a href="https://www.americanelements.com/semiconductors.html">Semiconductors</a></li><li><a href="https://www.americanelements.com/solar-energy-materials.html">Solar Energy Materials</a></li><li><a href="https://www.americanelements.com/solutions">Solutions</a></li><li><a href="https://www.americanelements.com/sputtering-targets.html">Sputtering Targets</a></li><li><a href="https://www.americanelements.com/thin-film-evaporation-materials.html">Thin Film Deposition</a></li><li><a href="https://www.americanelements.com/water-treatment-chemicals.html">Water Treatment Chemicals</a></li></ul></li><li class="nolink"><a class="top" href="#">Industries</a><ul><li><a href="https://www.americanelements.com/aerospace-aircraft.html">Aerospace</a></li><li><a href="https://www.americanelements.com/agriculture.html">Agriculture</a></li><li><a href="https://www.americanelements.com/automotive.html">Automotive</a></li><li><a href="https://www.americanelements.com/chemical-manufacturing.html">Chemical Manufacturing</a></li><li><a href="https://www.americanelements.com/defense.html">Defense</a></li><li><a href="https://www.americanelements.com/dentistry.html">Dentistry</a></li><li><a href="https://www.americanelements.com/electronics.html">Electronics</a></li><li><a href="https://www.americanelements.com/energy-storage-batteries.html">Energy Storage & Batteries</a></li><li><a href="https://www.americanelements.com/fuel-cell.html">Fuel Cells</a></li><li><a href="https://www.americanelements.com/fusion-energy">Fusion Energy</a></li><li><a href="https://www.americanelements.com/optical-materials.html">Glass Manufacturing</a></li><li><a href="https://www.americanelements.com/investment-grade-metals.html">Investment Grade Metals</a></li><li><a href="https://www.americanelements.com/jewelry-fashion.html">Jewelry & Fashion</a></li><li><a href="https://www.americanelements.com/lighting.html">Lighting</a></li><li><a href="https://www.americanelements.com/medical-devices.html">Medical Devices</a></li><li><a href="https://www.americanelements.com/nuclear-energy.html">Nuclear Energy</a></li><li><a href="https://www.americanelements.com/oil-gas.html">Oil & Gas</a></li><li><a href="https://www.americanelements.com/optical-materials.html">Optics</a></li><li><a href="https://www.americanelements.com/paper-pulp.html">Paper & Pulp</a></li><li><a href="https://www.americanelements.com/pharmaceuticals-cosmetics.html">Pharmaceuticals & Cosmetics</a></li><li><a href="https://www.americanelements.com/metal-plating">Plating</a></li><li><a href="https://www.americanelements.com/research-laboratory.html">Research & Laboratory</a></li><li><a href="https://www.americanelements.com/robotics.html">Robotics</a></li><li><a href="https://www.americanelements.com/solar-energy.html">Solar Energy</a></li><li><a href="https://www.americanelements.com/space-industry.html">Space</a></li><li><a href="https://www.americanelements.com/steel.html">Steel & Alloy Producers</a></li><li><a href="https://www.americanelements.com/sports-equipment.html">Sports Equipment</a></li><li><a href="https://www.americanelements.com/textiles-fabrics.html">Textiles & Fabrics</a></li><li><a href="https://www.americanelements.com/water-treatment-chemicals.html">Water Treatment</a></li></ul></li><li><a href="https://www.americanelements.com/research-center">Research</a></li><li><a href="https://www.americanelements.com/safety-data-center">SDS</a></li><li class="nolink" id="follow"><a class="top" href="#">Follow Us</a><ul><li><a class="twitter" href="https://twitter.com/AmericanElement">Twitter</a></li><li><a class="facebook" href="https://www.facebook.com/AmericanElement">Facebook</a></li><li><a class="instagram" href="https://www.instagram.com/americanelements/">Instagram</a></li><li><a class="linkedin" href="https://www.linkedin.com/company/american-elements">LinkedIn</a></li></ul></li><li><a href="https://www.americanelements.com/quote">Contact Us</a></li></ul></nav> <button type="button" class="navbar-toggle ming-toggle" data-toggle="offcanvas" data-target="#ming"> <span class="icon-bar"> </span> <span class="icon-bar"> </span> <span class="icon-bar"> </span> <span class="sr-only notranslate">Main Menu</span></button> <button type="button" class="navbar-toggle search-toggle" data-toggle="collapse" data-target=".search-collapse"><span class="toggle-icon search-icon"></span><span class="sr-only notranslate">Search</span></button> <button type="button" class="navbar-toggle translate-toggle" data-toggle="collapse" data-target="#navbar-collapse-grid"><span class="toggle-icon flag-icon"></span><span class="menu-button-text notranslate">Translate</span> </button> <div class="preface_first"> <form role="search" method="get" action="https://www.americanelements.com/cgi-bin/search.cgi"> <input type="text" name="zoom_query" title="search" aria-labelledby="search" required/> <span class="input-group-btn"> <button class="btn btn-default" type="submit" id="search"><span class="magnifier16"></span><span class="sr-only notranslate">Submit</span></button> </span> </form></div> </div></nav> <div id="navbar-collapse-grid" class="navbar-collapse collapse"> <ul id="flags"> <li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=zh-CN&u=" class="language"><span class="flag notranslate China"></span><span class="flag-text notranslate">& #31616;& #21270;& #23383;</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=de&u=" class="language"><span class="flag notranslate Germany"></span><span class="flag-text notranslate">Deutsch</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=es&u=" class="language"><span class="flag notranslate Spain"></span><span class="flag-text notranslate">español</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=fr&u=" class="language"><span class="flag notranslate France"></span><span class="flag-text notranslate">français</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=hi&u=" class="language"><span class="flag notranslate India"></span><span class="flag-text notranslate">& #x0939;& #x093f;& #x0928;& #x094d;& #x0926;& #x0940;</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=it&u=" class="language"><span class="flag notranslate Italy"></span><span class="flag-text notranslate">italiano</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=ja&u=" class="language"><span class="flag notranslate Japan"></span><span class="flag-text notranslate">& #x65e5;& #x672c;& #x8a9e;</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=ko&u=" class="language"><span class="flag notranslate South-Korea"></span><span class="flag-text notranslate">& #54620;& #44397;& #50612;</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=nl&u=" class="language"><span class="flag notranslate Netherlands"></span><span class="flag-text notranslate">nederlands</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=pt&u=" class="language"><span class="flag notranslate Brazil"></span><span class="flag-text notranslate">português</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=ru&u=" class="language"><span class="flag notranslate Russia"></span><span class="flag-text notranslate">& #x0420;& #x043e;& #x0441;& #x0441;& #x0438;& #x0438;</span></a></li><li><a href="https://translate.google.com/translate?hl=en&sl=en&tl=sv&u=" class="language"><span class="flag notranslate Sweden"></span><span class="flag-text notranslate">svensk</span></a></li><li><a href=""><span class="flag notranslate United-States"></span><span class="flag-text notranslate">English</span></a></li></ul> </div><div class="navbar-collapse search-collapse collapse notranslate" itemscope itemtype="http://schema.org/WebSite"><meta itemprop="url" content="https://www.americanelements.com/"/> <form itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction" class="input-group notranslate" role="search" method="get" action="https://www.americanelements.com/cgi-bin/search.cgi"> <meta itemprop="target" content="https://www.americanelements.com/cgi-bin/search.cgi?zoom_query={zoom_query}"/> <input itemprop="query-input" type="text" class="form-control" title="Search" placeholder="Search by Keyword, Product, CAS..." name="zoom_query" aria-labelledby="search" required/> <span class="input-group-btn"> <button class="btn btn-default" type="submit" id="search"><span class="magnifier16"></span><span class="sr-only notranslate">Submit</span></button> </span> </form></div><div id="ming" class="navmenu navmenu-default navmenu-fixed-right offcanvas" role="navigation"> <div class="panel-group expanding"> <div class="panel panel-container"> <div class="panel-heading ming-L1" data-target="#product-categories" data-toggle="collapse"><span class="panel-title">Materials</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="product-categories" class="panel-body collapse"> <div class="panel panel-ming ming-elements"> <a href="https://www.americanelements.com/products-by-element" class="panel-heading ming-L1" id="ming-elements"><span class="panel-title">Materials by Element</span><span class="Arrowhead-Right dropdown-icon notranslate"></span></a> </div><div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#forms" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Materials by Form</span><span class="Arrowhead-Down-24 dropdown-icon"> </span></div><div class="panel-body collapse" id="forms"> <a class="ming-link" href="https://www.americanelements.com/2d-materials" data-parent="#forms">2D Materials</a> <a class="ming-link" href="https://www.americanelements.com/alloys.html" data-parent="#forms">Alloy & Alloy Forms</a> <a class="ming-link" href="https://www.americanelements.com/metals.html" data-parent="#forms">Pure Metals & Metal Forms</a> <div class="panel-ming2"> <div class="panel-heading ming-L2" data-target="#chemicals" data-toggle="collapse" data-parent="#forms"><span class="panel-title">Chemicals & Salts</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="chemicals"> <strong><a class="ming-link" href="https://www.americanelements.com/chemicals.html" data-parent="#chemicals">All Chemicals & Salts</a></strong> <a class="ming-link" href="https://www.americanelements.com/Acetates.html" data-parent="#chemicals">Acetates</a> <a class="ming-link" href="https://www.americanelements.com/Aluminides.html" data-parent="#chemicals">Aluminides</a> <a class="ming-link" href="https://www.americanelements.com/Ammonium-Sulfates.html" data-parent="#chemicals">Ammonium Sulfates</a> <a class="ming-link" href="https://www.americanelements.com/Antimonides.html" data-parent="#chemicals">Antimonides</a> <a class="ming-link" href="https://www.americanelements.com/Arsenates.html" data-parent="#chemicals">Arsenates</a> <a class="ming-link" href="https://www.americanelements.com/Benzoates.html" data-parent="#chemicals">Benzoate</a> <a class="ming-link" href="https://www.americanelements.com/Bromates.html" data-parent="#chemicals">Bromates</a> <a class="ming-link" href="https://www.americanelements.com/Bromides.html" data-parent="#chemicals">Bromides</a> <a class="ming-link" href="https://www.americanelements.com/Carbonates.html" data-parent="#chemicals">Carbonates</a> <a class="ming-link" href="https://www.americanelements.com/Chlorides.html" data-parent="#chemicals">Chlorides</a> <a class="ming-link" href="https://www.americanelements.com/Chromates.html" data-parent="#chemicals">Chromates</a> <a class="ming-link" href="https://www.americanelements.com/Fluorides.html" data-parent="#chemicals">Fluorides</a> <a class="ming-link" href="https://www.americanelements.com/Hydrides.html" data-parent="#chemicals">Hydrides</a> <a class="ming-link" href="https://www.americanelements.com/Hydroxides.html" data-parent="#chemicals">Hydroxides</a> <a class="ming-link" href="https://www.americanelements.com/Iodates.html" data-parent="#chemicals">Iodates</a> <a class="ming-link" href="https://www.americanelements.com/Iodides.html" data-parent="#chemicals">Iodides</a> <a class="ming-link" href="https://www.americanelements.com/Lactates.html" data-parent="#chemicals">Lactates</a> <a class="ming-link" href="https://www.americanelements.com/Molybdates.html" data-parent="#chemicals">Molybdates</a> <a class="ming-link" href="https://www.americanelements.com/Nitrates.html" data-parent="#chemicals">Nitrates</a> <a class="ming-link" href="https://www.americanelements.com/Oxalates.html" data-parent="#chemicals">Oxalates</a> <a class="ming-link" href="https://www.americanelements.com/oxides.html" data-parent="#chemicals">Oxides</a> <a class="ming-link" href="https://www.americanelements.com/Perchlorates.html" data-parent="#chemicals">Perchlorates</a> <a class="ming-link" href="https://www.americanelements.com/Phosphates.html" data-parent="#chemicals">Phosphates</a> <a class="ming-link" href="https://www.americanelements.com/Selenates.html" data-parent="#chemicals">Selenates</a> <a class="ming-link" href="https://www.americanelements.com/Selenides.html" data-parent="#chemicals">Selenides</a> <a class="ming-link" href="https://www.americanelements.com/Selenites.html" data-parent="#chemicals">Selenites</a> <a class="ming-link" href="https://www.americanelements.com/Silicates.html" data-parent="#chemicals">Silicates</a> <a class="ming-link" href="https://www.americanelements.com/Stearates.html" data-parent="#chemicals">Stearates</a> <a class="ming-link" href="https://www.americanelements.com/Sulfates.html" data-parent="#chemicals">Sulfates</a> <a class="ming-link" href="https://www.americanelements.com/Sulfides.html" data-parent="#chemicals">Sulfides</a> <a class="ming-link" href="https://www.americanelements.com/sulfites" data-parent="#chemicals">Sulfites</a> <a class="ming-link" href="https://www.americanelements.com/Tantalates.html" data-parent="#chemicals">Tantalates</a> <a class="ming-link" href="https://www.americanelements.com/Tellurates.html" data-parent="#chemicals">Tellurates</a> <a class="ming-link" href="https://www.americanelements.com/Tellurides.html" data-parent="#chemicals">Tellurides</a> <a class="ming-link" href="https://www.americanelements.com/Tellurites.html" data-parent="#chemicals">Tellurites</a> <a class="ming-link" href="https://www.americanelements.com/thiocyanates" data-parent="#chemicals">Thiocyanates</a><a class="ming-link" href="https://www.americanelements.com/vanadates" data-parent="#chemicals">Vanadates</a></div><div class="panel-ming2"> <div class="panel-heading ming-L2" data-target="#ceramics" data-toggle="collapse" data-parent="#forms"><span class="panel-title">Ceramics</span><span class="Arrowhead-Down-24 dropdown-icon"> </span></div><div id="ceramics" class="panel-body collapse"> <strong><a class="ming-link" href="https://www.americanelements.com/ceramics.html" data-parent="#ceramics">Ceramics</a></strong> <strong><a class="ming-link" href="https://www.americanelements.com/refractory-ceramics" data-parent="#ceramics">Refractory Ceramics</a></strong><strong><a class="ming-link" href="https://www.americanelements.com/transparent-ceramics" data-parent="#ceramics">Transparent Ceramics</a></strong><a class="ming-link" href="https://www.americanelements.com/Aluminates.html" data-parent="#ceramics">Aluminates</a> <a class="ming-link" href="https://www.americanelements.com/Arsenides.html" data-parent="#ceramics">Arsenides</a> <a class="ming-link" href="https://www.americanelements.com/Borides.html" data-parent="#ceramics">Borides</a> <a class="ming-link" href="https://www.americanelements.com/Carbide.html" data-parent="#ceramics">Carbides</a> <a class="ming-link" href="https://www.americanelements.com/Ferrite.html" data-parent="#ceramics">Ferrites</a> <a class="ming-link" href="https://www.americanelements.com/Niobates.html" data-parent="#ceramics">Niobates</a> <a class="ming-link" href="https://www.americanelements.com/Nitrides.html" data-parent="#ceramics">Nitrides</a> <a class="ming-link" href="https://www.americanelements.com/Phosphides.html" data-parent="#ceramics">Phosphides</a> <a class="ming-link" href="https://www.americanelements.com/Silicides.html" data-parent="#ceramics">Silicides</a> <a class="ming-link" href="https://www.americanelements.com/Titanates.html" data-parent="#ceramics">Titanates</a> <a class="ming-link" href="https://www.americanelements.com/Tungstates.html" data-parent="#ceramics">Tungstates</a> <a class="ming-link" href="https://www.americanelements.com/Zirconates.html" data-parent="#ceramics">Zirconates</a></div></div><a class="ming-link" href="https://www.americanelements.com/ceramic-fibers" data-parent="#forms">Ceramic Fibers</a> <a class="ming-link" href="https://www.americanelements.com/foams.html" data-parent="#forms">Foams: Metallic & Ceramic</a> <a class="ming-link" href="https://www.americanelements.com/Ultra_high_purity_metals_powders.htm" data-parent="#forms">High Purity Materials</a> <a class="ming-link" href="https://www.americanelements.com/isotopes.html" data-parent="#forms">Isotopes</a> <a class="ming-link" href="https://www.americanelements.com/mxenes" data-parent="#forms">MXenes</a> <div class="panel-ming2"> <div class="panel-heading ming-L2" data-target="#nanomaterials" data-toggle="collapse" data-parent="#forms"><span class="panel-title">Nanomaterials</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="nanomaterials"> <a class="ming-link" href="https://www.americanelements.com/nanomaterials-nanoparticles-nanotechnology.html" data-parent="#nanomaterials">All Nanomaterials</a> <a class="ming-link" href="https://www.americanelements.com/quantum-dots" data-parent="#nanomaterials">Quantum Dots</a> </div></div><div class="panel-ming2"> <div class="panel-heading ming-L2" data-target="#organometallics-products" data-toggle="collapse" data-parent="#forms"><span class="panel-title">Organometallics</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="organometallics-products" class="panel-body collapse"> <strong><a class="ming-link" href="https://www.americanelements.com/organometallics.html" data-parent="#organometallics-products">All Organometallics</a></strong> <a class="ming-link" href="https://www.americanelements.com/Ethylhexanoates.html" data-parent="#organometallics-products">2-Ethylhexanoates</a> <a class="ming-link" href="https://www.americanelements.com/Acetylacetonates.html" data-parent="#organometallics-products">Acetylacetonates</a> <a class="ming-link" href="https://www.americanelements.com/phthalocyanines" data-parent="#organometallics-products">Phthalocyanines</a> <a class="ming-link" href="https://www.americanelements.com/trifluoromethanesulfonates-triflates" data-parent="#organometallics-products">Trifluoromethanesulfonates</a></div></div><a class="ming-link" href="https://www.americanelements.com/oxides.html" data-parent="#forms">Oxides</a> <a class="ming-link" href="https://www.americanelements.com/rare-earths.html" data-parent="#forms">Rare Earths</a> <a class="ming-link" href="https://www.americanelements.com/semiconductors.html" data-parent="#forms">Semiconductors</a> <a class="ming-link" href="https://www.americanelements.com/solutions" data-parent="#forms">Solutions</a> </div></div><div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#applications" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Materials by Application</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="applications"> <a class="ming-link" href="https://www.americanelements.com/additive-manufacturing-3d-printing" data-parent="#applications">Additive Manufacturing & 3D Printing</a> <a class="ming-link" href="https://www.americanelements.com/Battery-Technology.html" data-parent="#applications">Battery & Supercapacitor Materials</a> <a class="ming-link" href="https://www.americanelements.com/catalysts" data-parent="#applications">Catalysts</a> <a class="ming-link" href="https://www.americanelements.com/dental-materials.html" data-parent="#applications">Dental Materials</a> <a class="ming-link" href="https://www.americanelements.com/electronics-materials.html" data-parent="#applications">Electronics Materials</a> <a class="ming-link" href="https://www.americanelements.com/fuel-cell-materials.html" data-parent="#applications">Fuel Cell Materials</a> <a class="ming-link" href="https://www.americanelements.com/fusion-energy" data-parent="#applications">Fusion Energy</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#applications">Glass Manufacturing</a> <a class="ming-link" href="https://www.americanelements.com/green-technology-alternative-energy.html" data-parent="#applications">Green Technology & Alternative Energy</a> <a class="ming-link" href="https://www.americanelements.com/Hydrogen-Storage.html" data-parent="#applications">Hydrogen Storage</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#applications">Laser Crystals</a> <a class="ming-link" href="https://www.americanelements.com/Bio-Medical.html" data-parent="#applications">Life Sciences & Biomaterials</a> <a class="ming-link" href="https://www.americanelements.com/metallurgy.html" data-parent="#applications">Metallurgy</a> <a class="ming-link" href="https://www.americanelements.com/nanomaterials-nanoparticles-nanotechnology.html" data-parent="#applications">Nanotechnology & Nanomaterials</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#applications">Optical Materials</a> <a class="ming-link" href="https://www.americanelements.com/solar-energy-materials.html" data-parent="#applications">Photovoltaic & Solar Energy</a> <a class="ming-link" href="https://www.americanelements.com/metal-plating" data-parent="#applications">Plating</a> <a class="ming-link" href="https://www.americanelements.com/pigments-coatings.html" data-parent="#applications">Pigments & Coatings</a> <a class="ming-link" href="https://www.americanelements.com/research-and-development.html" data-parent="#applications">Research & Development</a> <a class="ming-link" href="https://www.americanelements.com/space-industry.html" data-parent="#applications">Space Technology</a> <a class="ming-link" href="https://www.americanelements.com/sputtering-targets.html" data-parent="#applications">Sputtering Targets</a> <a class="ming-link" href="https://www.americanelements.com/thin-film-evaporation-materials.html" data-parent="#applications">Thin Film Deposition</a> <a class="ming-link" href="https://www.americanelements.com/water-treatment-chemicals.html" data-parent="#applications">Water Treatment</a> <a class="ming-link" href="https://www.americanelements.com/weather-modification" data-parent="#applications">Weather Modification</a> </div></div></div></div><div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#life-science-products" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Life Science Chemicals</span><span class="Arrowhead-Down-24 dropdown-icon"> </span></div><div class="panel-body collapse" id="life-science-products"><a class="ming-link" href="https://www.americanelements.com/life-science-organic-chemistry" data-parent="life-science-products">Life Science Products</a> <a class="ming-link" href="https://www.americanelements.com/alcohols" data-parent="life-science-products">Alcohols</a><a class="ming-link" href="https://www.americanelements.com/aldehydes" data-parent="life-science-products">Aldehydes</a><a class="ming-link" href="https://www.americanelements.com/amides" data-parent="life-science-products">Amides</a><a class="ming-link" href="https://www.americanelements.com/amines" data-parent="life-science-products">Amines</a><a class="ming-link" href="https://www.americanelements.com/amino-acids-derivatives" data-parent="life-science-products">Amino Acids & Derivatives</a><a class="ming-link" href="https://www.americanelements.com/aromatics" data-parent="life-science-products">Aromatics</a><a class="ming-link" href="https://www.americanelements.com/aryls" data-parent="life-science-products">Aryls</a><a class="ming-link" href="https://www.americanelements.com/azetidines" data-parent="life-science-products">Azetidines</a><a class="ming-link" href="https://www.americanelements.com/benzimidazoles" data-parent="life-science-products">Benzimidazoles</a><a class="ming-link" href="https://www.americanelements.com/benzisoxazoles" data-parent="life-science-products">Benzisoxazoles</a><a class="ming-link" href="https://www.americanelements.com/benzodioxans" data-parent="life-science-products">Benzodioxans</a><a class="ming-link" href="https://www.americanelements.com/benzofurans" data-parent="life-science-products">Benzofurans</a><a class="ming-link" href="https://www.americanelements.com/benzothiazoles" data-parent="life-science-products">Benzothiazoles</a><a class="ming-link" href="https://www.americanelements.com/benzothiophenes" data-parent="life-science-products">Benzothiophenes</a><a class="ming-link" href="https://www.americanelements.com/benzoxazoles" data-parent="life-science-products">Benzoxazoles</a><a class="ming-link" href="https://www.americanelements.com/carboxylic-acids" data-parent="life-science-products">Carboxylic Acids</a><a class="ming-link" href="https://www.americanelements.com/enzymes-inhibitors" data-parent="life-science-products">Enzymes & Inhibitors</a><a class="ming-link" href="https://www.americanelements.com/esters" data-parent="life-science-products">Esters</a><a class="ming-link" href="https://www.americanelements.com/ethers" data-parent="life-science-products">Ethers</a><a class="ming-link" href="https://www.americanelements.com/fluorinated-building-blocks" data-parent="life-science-products">Fluorinated Building Blocks</a><a class="ming-link" href="https://www.americanelements.com/furans" data-parent="life-science-products">Furans</a><a class="ming-link" href="https://www.americanelements.com/halides" data-parent="life-science-products">Halides</a><a class="ming-link" href="https://www.americanelements.com/imidazoles" data-parent="life-science-products">Imidazoles</a><a class="ming-link" href="https://www.americanelements.com/imidazolidines" data-parent="life-science-products">Imidazolidines</a><a class="ming-link" href="https://www.americanelements.com/indazoles" data-parent="life-science-products">Indazoles</a><a class="ming-link" href="https://www.americanelements.com/indoles" data-parent="life-science-products">Indoles</a><a class="ming-link" href="https://www.americanelements.com/indolines" data-parent="life-science-products">Indolines</a><a class="ming-link" href="https://www.americanelements.com/isoquinolines" data-parent="life-science-products">Isoquinolines</a><a class="ming-link" href="https://www.americanelements.com/isoxazoles" data-parent="life-science-products">Isoxazoles</a><a class="ming-link" href="https://www.americanelements.com/ketones" data-parent="life-science-products">Ketones</a><a class="ming-link" href="https://www.americanelements.com/morpholines" data-parent="life-science-products">Morpholines</a><a class="ming-link" href="https://www.americanelements.com/naphthyridines" data-parent="life-science-products">Naphthyridines</a><a class="ming-link" href="https://www.americanelements.com/nitriles" data-parent="life-science-products">Nitriles</a><a class="ming-link" href="https://www.americanelements.com/organoboron" data-parent="life-science-products">Organoboron</a><a class="ming-link" href="https://www.americanelements.com/organosilicon" data-parent="life-science-products">Organosilicon</a><a class="ming-link" href="https://www.americanelements.com/oxadiazoles" data-parent="life-science-products">Oxadiazoles</a><a class="ming-link" href="https://www.americanelements.com/oxazoles" data-parent="life-science-products">Oxazoles</a><a class="ming-link" href="https://www.americanelements.com/pharmaceuticals-intermediates" data-parent="life-science-products">Pharmaceuticals & Intermediates</a><a class="ming-link" href="https://www.americanelements.com/phenols" data-parent="life-science-products">Phenols</a><a class="ming-link" href="https://www.americanelements.com/phytochemicals" data-parent="life-science-products">Phytochemicals</a><a class="ming-link" href="https://www.americanelements.com/piperazines" data-parent="life-science-products">Piperazines</a><a class="ming-link" href="https://www.americanelements.com/piperidines" data-parent="life-science-products">Piperidines</a><a class="ming-link" href="https://www.americanelements.com/pyrazines" data-parent="life-science-products">Pyrazines</a><a class="ming-link" href="https://www.americanelements.com/pyrazoles" data-parent="life-science-products">Pyrazoles</a><a class="ming-link" href="https://www.americanelements.com/pyridazines" data-parent="life-science-products">Pyridazines</a><a class="ming-link" href="https://www.americanelements.com/pyridines" data-parent="life-science-products">Pyridines</a><a class="ming-link" href="https://www.americanelements.com/pyrimidines" data-parent="life-science-products">Pyrimidines</a><a class="ming-link" href="https://www.americanelements.com/pyrroles" data-parent="life-science-products">Pyrroles</a><a class="ming-link" href="https://www.americanelements.com/pyrrolidines" data-parent="life-science-products">Pyrrolidines</a><a class="ming-link" href="https://www.americanelements.com/pyrrolines" data-parent="life-science-products">Pyrrolines</a><a class="ming-link" href="https://www.americanelements.com/quinazolines" data-parent="life-science-products">Quinazolines</a><a class="ming-link" href="https://www.americanelements.com/quinolines" data-parent="life-science-products">Quinolines</a><a class="ming-link" href="https://www.americanelements.com/quinoxalines" data-parent="life-science-products">Quinoxalines</a><a class="ming-link" href="https://www.americanelements.com/spiroes" data-parent="life-science-products">Spiroes</a><a class="ming-link" href="https://www.americanelements.com/sulfonyl-chlorides" data-parent="life-science-products">Sulfonyl Chlorides</a><a class="ming-link" href="https://www.americanelements.com/tetrahydroisoquinolines" data-parent="life-science-products">Tetrahydroisoquinolines</a><a class="ming-link" href="https://www.americanelements.com/tetrahydropyrans" data-parent="life-science-products">Tetrahydropyrans</a><a class="ming-link" href="https://www.americanelements.com/tetrahydroquinolines" data-parent="life-science-products">Tetrahydroquinolines</a><a class="ming-link" href="https://www.americanelements.com/tetrazoles" data-parent="life-science-products">Tetrazoles</a><a class="ming-link" href="https://www.americanelements.com/thiadiazoles" data-parent="life-science-products">Thiadiazoles</a><a class="ming-link" href="https://www.americanelements.com/thiazoles" data-parent="life-science-products">Thiazoles</a><a class="ming-link" href="https://www.americanelements.com/thiazolidines" data-parent="life-science-products">Thiazolidines</a><a class="ming-link" href="https://www.americanelements.com/thiols" data-parent="life-science-products">Thiols</a><a class="ming-link" href="https://www.americanelements.com/thiophenes" data-parent="life-science-products">Thiophenes</a><a class="ming-link" href="https://www.americanelements.com/triazines" data-parent="life-science-products">Triazines</a><a class="ming-link" href="https://www.americanelements.com/triazoles" data-parent="life-science-products">Triazoles</a></div></div><div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#company" data-toggle="collapse" data-parent="#ming"><span class="panel-title">About Us</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="company"> <a class="ming-link" href="https://www.americanelements.com/company.html" data-parent="#company">Our Company</a> <a class="ming-link" href="https://www.americanelements.com/eventspressreleases.html" data-parent="#company">News & Events</a> <a class="ming-link" href="https://www.americanelements.com/Media.html" data-parent="#company">Media</a></div></div><a href="https://www.americanelements.com/quality-assurance-quality-control" class="ming-link panel-heading ming-L1" data-parent="#ming"><span class="panel-title">Quality Assurance/Quality Control</span><span class="Arrowhead-Right dropdown-icon notranslate"></span></a> <div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#countries" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Locations</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="countries"> <a class="ming-link" href="https://www.americanelements.com/osterreich.html">Austria</a> <a class="ming-link" href="https://www.americanelements.com/belgium.html">Belgium</a> <a class="ming-link" href="https://www.americanelements.com/brasil.html">Brazil</a> <a class="ming-link" href="https://www.americanelements.com/canada.html">Canada</a> <a class="ming-link" href="https://www.americanelements.com/china-hongkong.html">China & Hong Kong</a> <a class="ming-link" href="https://www.americanelements.com/ceskarepublika.html">Czech Republic</a> <a class="ming-link" href="https://www.americanelements.com/danmark.html">Denmark</a> <a class="ming-link" href="https://www.americanelements.com/suomi.html">Finland</a> <a class="ming-link" href="https://www.americanelements.com/france.html">France</a> <a class="ming-link" href="https://www.americanelements.com/deutschland.html">Germany</a> <a class="ming-link" href="https://www.americanelements.com/greece.html">Greece</a> <a class="ming-link" href="https://www.americanelements.com/magyarorszag.html">Hungary</a> <a class="ming-link" href="https://www.americanelements.com/india.html">India</a> <a class="ming-link" href="https://www.americanelements.com/indonesia.html">Indonesia</a> <a class="ming-link" href="https://www.americanelements.com/israel.html">Israel</a> <a class="ming-link" href="https://www.americanelements.com/italia.html">Italy</a> <a class="ming-link" href="https://www.americanelements.com/japan.html">Japan</a> <a class="ming-link" href="https://www.americanelements.com/malaysia.html">Malaysia</a> <a class="ming-link" href="https://www.americanelements.com/mexico.html">Mexico</a> <a class="ming-link" href="https://www.americanelements.com/nederland.html">Netherlands</a> <a class="ming-link" href="https://www.americanelements.com/norge.html">Norway</a> <a class="ming-link" href="https://www.americanelements.com/philippines.html">Philippines</a> <a class="ming-link" href="https://www.americanelements.com/polska.html">Poland</a> <a class="ming-link" href="https://www.americanelements.com/portugal.html">Portugal</a> <a class="ming-link" href="https://www.americanelements.com/russia.html">Russia</a> <a class="ming-link" href="https://www.americanelements.com/singapore.html">Singapore</a> <a class="ming-link" href="https://www.americanelements.com/korea.html">South Korea</a> <a class="ming-link" href="https://www.americanelements.com/espana.html">Spain</a> <a class="ming-link" href="https://www.americanelements.com/sverige.html">Sweden</a> <a class="ming-link" href="https://www.americanelements.com/switzerland.html">Switzerland</a> <a class="ming-link" href="https://www.americanelements.com/taiwan.html">Taiwan</a> <a class="ming-link" href="https://www.americanelements.com/thailand.html">Thailand</a> <a class="ming-link" href="https://www.americanelements.com/turkiye.html">Turkey</a> <a class="ming-link" href="https://www.americanelements.com/united-kingdom.html">United Kingdom</a> <a class="ming-link" href="https://www.americanelements.com/">United States</a></div></div><div class="panel panel-ming"> <div class="panel-heading ming-L1" data-target="#industries" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Industries</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div class="panel-body collapse" id="industries"> <a class="ming-link" href="https://www.americanelements.com/aerospace-aircraft.html" data-parent="#industries">Aerospace</a> <a class="ming-link" href="https://www.americanelements.com/agriculture.html" data-parent="#industries">Agriculture</a> <a class="ming-link" href="https://www.americanelements.com/automotive.html" data-parent="#industries">Automotive</a> <a class="ming-link" href="https://www.americanelements.com/chemical-manufacturing.html" data-parent="#industries">Chemical Manufacturing</a> <a class="ming-link" href="https://www.americanelements.com/defense.html" data-parent="#industries">Defense</a> <a class="ming-link" href="https://www.americanelements.com/dentistry.html" data-parent="#industries">Dentistry</a> <a class="ming-link" href="https://www.americanelements.com/electronics.html" data-parent="#industries">Electronics</a> <a class="ming-link" href="https://www.americanelements.com/energy-storage-batteries.html" data-parent="#industries">Energy Storage & Batteries</a> <a class="ming-link" href="https://www.americanelements.com/fine-art-materials" data-parent="#industries">Fine Art Materials</a> <a class="ming-link" href="https://www.americanelements.com/fuel-cell.html" data-parent="#industries">Fuel Cells</a><a class="ming-link" href="https://www.americanelements.com/fusion-energy" data-parent="#industries">Fusion Energy</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#industries">Glass</a> <a class="ming-link" href="https://www.americanelements.com/investment-grade-metals.html" data-parent="#industries">Investment Grade Metals</a> <a class="ming-link" href="https://www.americanelements.com/jewelry-fashion.html" data-parent="#industries">Jewelry & Fashion</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#industries">Lasers</a> <a class="ming-link" href="https://www.americanelements.com/lighting.html" data-parent="#industries">Lighting</a> <a class="ming-link" href="https://www.americanelements.com/medical-devices.html" data-parent="#industries">Medical Devices</a> <a class="ming-link" href="https://www.americanelements.com/museum-gallery-services" data-parent="#industries">Museums & Galleries</a> <a class="ming-link" href="https://www.americanelements.com/nuclear-energy.html" data-parent="#industries">Nuclear Energy</a> <a class="ming-link" href="https://www.americanelements.com/oil-gas.html" data-parent="#industries">Oil & Gas</a> <a class="ming-link" href="https://www.americanelements.com/optical-materials.html" data-parent="#industries">Optics</a> <a class="ming-link" href="https://www.americanelements.com/paper-pulp.html" data-parent="#industries">Paper & Pulp</a> <a class="ming-link" href="https://www.americanelements.com/pharmaceuticals-cosmetics.html" data-parent="#industries">Pharmaceuticals & Cosmetics</a> <a class="ming-link" href="https://www.americanelements.com/research-laboratory.html" data-parent="#industries">Research & Laboratory</a><a class="ming-link" href="https://www.americanelements.com/robotics" data-parent="#industries">Robotics</a> <a class="ming-link" href="https://www.americanelements.com/solar-energy.html" data-parent="#industries">Solar Energy</a> <a class="ming-link" href="https://www.americanelements.com/space-industry.html" data-parent="#industries">Space</a> <a class="ming-link" href="https://www.americanelements.com/sports-equipment.html" data-parent="#industries">Sports Equipment</a> <a class="ming-link" href="https://www.americanelements.com/steel.html" data-parent="#industries">Steel & Alloy Producers</a> <a class="ming-link" href="https://www.americanelements.com/textiles-fabrics.html" data-parent="#industries">Textiles & Fabrics</a> <a class="ming-link" href="https://www.americanelements.com/water-treatment-chemicals.html" data-parent="#industries">Water Treatment Municipalities</a></div></div><a href="https://www.americanelements.com/services" class="ming-link panel-heading ming-L1" data-parent="#ming"><span class="panel-title">Services</span><span class="Arrowhead-Right dropdown-icon notranslate"></span></a> <a href="https://www.americanelements.com/safety-data-center" class="panel-heading ming-L1 ming-link" data-parent="#ming"><span class="panel-title">Safety Data Center</span><span class="sds-icon dropdown-icon notranslate"></span></a><a href="https://www.americanelements.com/research-center" class="panel-heading ming-L1 ming-link" data-parent="#ming"><span class="panel-title">Research Center</span><span class="Library-Books-24 dropdown-icon notranslate"></span></a> <a href="https://www.americanelements.com/materials-science" class="ming-link panel-heading ming-L1" data-parent="#ming"><span class="panel-title">Explore Materials Science</span><span class="Arrowhead-Right dropdown-icon notranslate"></span></a> <a href="https://www.americanelements.com/toolbox.html" class="panel-heading ming-L1 ming-link" data-parent="#ming"><span class="panel-title">Toolbox</span><span class="wrench dropdown-icon notranslate"></span></a> <a href="https://www.americanelements.com/aenotes.html" class="ming-link panel-heading ming-L1" data-parent="#ming"><span class="panel-title">Materials Science News</span><span class="Arrowhead-Right dropdown-icon notranslate"></span></a><a href="https://www.americanelements.com/quote" class="panel-heading ming-L1 ming-link" data-parent="#ming"><span class="panel-title">Contact us / Request Quote</span></a> <div class="panel panel-ming"> <div class="panel-heading ming-L1 share-menu" data-target="#share" data-toggle="collapse" data-parent="#ming"><span class="panel-title">Share This Page</span><span class="ming-icon sharepage dropdown-icon"></span></div><div class="panel-body collapse ming-share" id="share"> <a href="mailto:?subject=Citation%20from%20American%20Elements&body=Courtesy%20of%20American%20Elements:%20" class="share ming-link" data-parent="#share">Email <span class="share-icon mail-16"></span></a> <a href="https://twitter.com/intent/tweet?text=via%20%40AmericanElement%3A%20" class="share ming-link" data-parent="#share">Tweet<span class="share-icon twitter-16"></span></a> <a target="_blank" href="https://www.facebook.com/sharer.php?u=" class="share ming-link" data-parent="#share">Facebook<span class="share-icon facebook-16"></span></a></div></div><div class="follow-us" data-parent="#ming"> Follow Us <div id="social"><a class="ming-link social twitter" href="https://www.twitter.com/AmericanElement"><span class="sr-only">Twitter</span></a> <a class="ming-link social facebook" href="https://www.facebook.com/AmericanElement"><span class="sr-only">Facebook</span></a> <a class="ming-link social linkedin" href="https://www.linkedin.com/company/american-elements"><span class="sr-only">LinkedIn</span></a> <a class="ming-link social instagram" href="https://www.instagram.com/americanelements/"><span class="sr-only">Instagram</span></a></div></div></div></div></div><div class="container-fluid" id="main-content"> <div id="page-content"> <!--End Nicemenu --> <!--ZOOMRESTART--> <div class="banner"> <!-- InstanceBeginEditable name="page-title" --> <h1 class="short">Tantalum</h1> <!--ZOOMSTOP--><span class="element-item2 transition metal" aria-hidden="true"><span class="symbol2">Ta</span><span class="number">73</span><span class="weight">180.9488</span></span><!--ZOOMRESTART--> <!-- InstanceEndEditable --> </div> <!-- InstanceBeginEditable name="page-content" --> <!-- Nav tabs --> <div id="element-tabs"> <ul class="nav nav-pills nav-justified" role="tablist"> <li><a href="#about" id="tab1" role="tab" aria-controls="about" data-toggle="pill" class="InfoTab" tabindex="0">About Tantalum</a></li> <li class="active"><a href="#products" id="tab2" role="tab" aria-controls="products" data-toggle="pill" class="InfoTab" tabindex="0">Products</a></li> <li><a href="#properties" id="tab3" role="tab" aria-controls="properties" data-toggle="pill" class="InfoTab" tabindex="0">Properties</a></li> <li><a href="#safety" id="tab4" role="tab" aria-controls="safety" data-toggle="pill" class="InfoTab" tabindex="0">Safety</a></li> <li><a href="#isotopes" id="tab5" role="tab" aria-controls="isotopes" data-toggle="pill" class="InfoTab" tabindex="0">Isotopes</a></li> </ul> </div> <div id="content"> <!-- Tab panes --> <div class="tab-content"> <div class="tab-pane" id="about" role="tabpanel" aria-labelledby="tab1"> <h2>About Tantalum</h2> <img src="images_graphics/element-bohr-models/tantalum-bohr-model.jpg" alt="Tantalum Bohr Model" width="200" height="200" class="image-left" /><p>Tantalum is extremely chemically similar to <a href="nb.html">niobium</a>; the two exist neither as free elements on earth nor independent from each other, present in minerals like tantalite, columbite, samarskite, microlite, wodginite, euxenite, fergusonite, and polycrase. The minerals called tantalite and columbite (alternately, niobate) actually have the same chemical structure, the two names reflecting a difference in relative proportion of tantalum to niobium. The history of the two elements is similarly entwined. In 1801, British chemist and mineralogist Charles Hatchett became intrigued by a mineral sample displayed in the collection that had been sent decades earlier from the American colonies by Connecticut governor John Winthrop. His analysis of the sample yielded a substance he believed contained a heretofore undiscovered element that he named “columbium” for Columbia, the symbolic female embodiment of the United States, and the mineral itself came to be called columbite. Less than a year later in Uppsala, Sweden, chemist Anders Gustaf Ekeberg suspected he had discovered a new element by similarly extracting an <a href="oxides.html">oxide form</a> from tantalite. This oxide proved so highly resistant to attack by even acid that he named the element “tantalum” after the Greek mythological figure of Tantalus, who remained unable to quench his thirst from the water in which he stood. Later that year, however, British chemist William Hyde Wollaston declared that columbium and tantalum were in fact the same element (despite the difference in density between the two oxide forms), and that tantalum should be its official name.</p> <p>Much confusion ensued in the following years within the scientific community. In 1845, German chemist Heinrich Rose posited that tantalite contained two additional elements besides tantalum, naming them “pelopium” and “niobium” after Pelops and Niobe, the mythological daughters of Tantalus; in 1847, R. Hermann announced that he had discovered a new element, “ilmenium,” from the mineral samarskite. Pelopium and ilmenium were subsequently shown to be mixes of tantalum and niobium. The difference between tantalum and niobium was not empirically proven until the 1860’s by Jean Charles Galissard de Marignac, and pure tantalum was not isolated until 1903 by Werner von Bolton. For years, the standard method for separating the two elements was achieved via de Marignac’s method of fractional crystallization; later methods developed include liquid-liquid extraction from aqueous solutions of <a href="Fluorides.html">fluoride compounds</a> and a modified version of the Hall-Héroult electrolysis technique based on powdered oxides.</p> <p>Elemental tantalum is a lustrous blue-gray transition metal that is a member of the heat-resistant refractory metal group. Naturally occurring tantalum has two isotopes; metastable 180m-Ta is both the only naturally-occurring nuclear isomer and is also calculated to be the rarest primordial isotope in the universe. <a href="tantalum-metal-7440-25-7">Tantalum metal</a> is hard and dense, yet also ductile and highly malleable; its resistance to corrosion is similar to that of glass and the highest of any metal in common use. An extremely thin and stable surface film of <a href="tantalum-oxide-powder-1314-61-0">tantalum pentoxide</a> provides the metal with its surface passivation: it is essentially chemically inert at temperatures below 150 C and resists attack by all acids except hydrofluoric acid, fluoride-containing acidic solutions, and oleum (sulfur trioxide in sulfuric acid solution). This stability and non-reactivity with body tissue or fluids makes it useful for chemical and pharmaceutical components, laboratory instruments, and medical implants, especially as a more cost-effective substitute for <a href="pt.htm">platinum</a> and other precious metals. Tantalum has one of the highest melting points of all elements, surpassed only by <a href="ww.html">tungsten</a>, <a href="rh.html">rhenium</a>, <a href="os.html">osmium</a>, and <a href="cc.html">carbon</a>, yet it is also highly conductive to heat and electricity. Coupled with its extreme resistance to corrosion, these properties make tungsten a critical industrial metal for applications in high-temperature oxidizing environments like linings of nuclear reactors, aircraft components, rocket engines, vacuum furnace and heat exchanger installations, and chemical processing equipment. The metal was also used in early lamp filaments and radio transmitter electron tubes for this reason. Tantalum <a href="alloys.html">alloys</a> and superalloys are extremely dense, strong, and durable, with high melting points and excellent machinability that are utilized by the aerospace, nuclear, defense, and hot metal-working industries. Other significant industrial materials are <a href="tantalum-nitride-12033-62-4">tantalum nitrides</a> and <a href="tantalum-carbide-tac-12070-06-3">tantalum carbides</a>: hard, durable, and highly heat-resistant ceramics materials used in cutting tools, jet engine and turbine blades, and drill bits. A tantalum carbide-graphite composite material developed by scientists at the Los Alamos National Lab has been labeled one of the hardest materials ever synthesized.</p> <p>The most prevalent commercial use of metallic tantalum is in the compact, high-performance capacitors of electronics such as mobile devices, digital cameras, laptop computers, pacemakers, GPS systems, and anti-lock braking systems. Because dielectric coatings of <a href="tantalum-oxide-powder-1314-61-0">tantalum pentoxide</a> are thinner than their <a href="al.html">aluminum</a> corollary, tantalum-based capacitors are lighter and more efficient, in addition to being highly reliable with low leakage and excellent capacity. Materials like <a href="tantalum-nitride-12033-62-4">tantalum nitride</a> have also been used in thin-chip resistors and as copper diffusion barriers in micro and nanoelectronic devices. Other applications for tantalum have emerged in advanced technology. <a href="lithium-tantalate-12031-66-2">Lithium tantalate</a> (LiTaO<sub>3</sub>) is a ferroelectric perovskite crystal used in non-linear optics, and the high refractive index of tantalum oxide is utilized in <a href="optical-materials.html">optical coatings</a> and metallic glass. In addition, the metal’s excellent resistance to corrosion and heat make it an attractive cost-effective alternative to platinum or <a href="au.html">gold</a> in fuel cell collector plates and in the extreme environments required for production of alternative energy sources like biofuels.</p> </div> <div class="tab-pane active" id="products" role="tabpanel" aria-labelledby="tab2"> <h2>Products</h2> <div class="panel-group expanding" id="accordion"> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#compound-products"><span class="panel-title">Compounds</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="compound-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="ammonium-heptafluorotantalate-v-12022-02-5">Ammonium Heptafluorotantalate(V)</a></li> <li class="product"><a href="ammonium-hexafluorotantalate-v-33380-11-9">Ammonium Hexafluorotantalate(V)</a></li> <li class="product"> <a href="barium-tantalum-oxide-12047-34-6">Barium Tantalum Oxide</a></li> <li class="product"><a href="lead-tantalate-12065-68-8">Lead Tantalate</a></li> <li class="product"> <a href="magnesium-tantalate-12293-61-7">Magnesium Tantalate</a></li> <li class="product"> <a href="potassium-heptafluorotantalate-16924-00-8">Potassium Heptafluorotantalate</a></li> <li class="product"> <a href="potassium-tantalum-niobium-oxide-ktn">Potassium Tantalum Niobium Oxide</a></li> <li class="product"> <a href="potassium-tantalum-oxide-12030-91-0">Potassium Tantalum Oxide</a></li> <li class="product"> <a href="rubidium-tantalate-12333-74-3">Rubidium Tantalate</a></li> <li class="product"> <a href="strontium-aluminum-tantalum-oxide">Strontium Aluminum Tantalum Oxide</a></li> <li class="product"> <a href="strontium-bismuth-tantalate">Strontium Bismuth Tantalate</a></li> <li class="product"> <a href="tantalum-acetate-solution-6074-84-6">Tantalum Acetate Solution</a></li> <li class="product"> <a href="tantalum-aluminide-ta3al-12004-76-1">Tantalum Aluminide</a></li> <li class="product"><a href="tantalum-aluminum-carbide-ta2alc">Tantalum Aluminum Carbide Ta<sub>2</sub>AlC</a></li> <li class="product"><a href="tantalum-aluminum-carbide-ta4alc3-1019635-34-7">Tantalum Aluminum Carbide Ta<sub>4</sub>AlC<sub>3</sub></a></li> <li class="product"> <a href="tantalum-boride-12007-07-7">Tantalum Boride TaB</a></li> <li class="product"> <a href="tantalum-diboride-12007-35-1">Tantalum Boride TaB<sub>2</sub></a></li> <li class="product"> <a href="tantalum-boride-sputtering-target-12007-35-1">Tantalum Boride Sputtering Target</a></li> <li class="product"> <a href="tantalum-iii-bromide-13842-73-4">Tantalum(III) Bromide TaBr<sub>3</sub></a></li> <li class="product"> <a href="tantalum-v-bromide-13451-11-1">Tantalum(V) Bromide TaBr<sub>5</sub></a></li> <li class="product"> <a href="tantalum-carbide-tac-12070-06-3">Tantalum Carbide TaC</a></li> <li class="product"> <a href="tantalum-carbide-ta2c-12070-07-4">Tantalum Carbide Ta<sub>2</sub>C</a></li> <li class="product"><a href="tantalum-carbide-ta4c3-12076-61-8">Tantalum Carbide Ta<sub>4</sub>C<sub>3</sub></a></li> <li class="product"> <a href="tantalum-carbide-granules-12070-06-3">Tantalum Carbide Granules</a></li> <li class="product"> <a href="tantalum-carbide-foam-12070-06-3">Tantalum Carbide Foam</a></li> <li class="product"> <a href="tantalum-carbide-honeycomb-12070-06-3">Tantalum Carbide Honeycomb</a></li> <li class="product"> <a href="tantalum-carbide-powder-12070-06-3">Tantalum Carbide Powder</a></li> <li class="product"> <a href="tantalum-carbide-sponge-12070-06-3">Tantalum Carbide Sponge</a></li> <li class="product"> <a href="tantalum-carbide-wool-12070-06-3">Tantalum Carbide Wool</a></li> <li class="product"> <a href="tantalum-v-chloride-7721-01-9">Tantalum(V) Chloride</a></li> <li class="product"> <a href="tantalum-chloride-solution-13569-67-0">Tantalum Chloride Solution</a></li> <li class="product"><a href="tantalum-doped-lithium-lanthanum-zirconate">Tantalum-doped Lithium Lanthanum Zirconate</a></li> <li class="product"> <a href="tantalum-iii-fluoride-13814-17-0">Tantalum Fluoride TaF<sub>3</sub></a></li> <li class="product"> <a href="tantalum-v-fluoride-7783-71-3">Tantalum(V) Fluoride TaF<sub>5</sub></a></li> <li class="product"> <a href="tantalum-hafnium-carbide">Tantalum Hafnium Carbide</a></li> <li class="product"> <a href="tantalum-iv-iodide-14693-80-2">Tantalum(IV) Iodide TaI<sub>4</sub></a></li> <li class="product"> <a href="tantalum-v-iodide-14693-81-3">Tantalum(V) Iodide TaI<sub>5</sub></a></li> <li class="product"> <a href="tantalum-hafnium-carbide">Tantalum Hafnium Carbide</a></li> <li class="product"> <a href="tantalum-hydride-13981-95-8">Tantalum Hydride</a></li> <li class="product"> <a href="tantalum-niobium-carbide">Tantalum Niobium Carbide</a></li> <li class="product"> <a href="tantalum-nitrate">Tantalum Nitrate</a></li> <li class="product"> <a href="tantalum-nitride-12033-62-4">Tantalum Nitride</a></li> <li class="product"> <a href="tantalum-oxide-1314-61-0">Tantalum Oxide</a></li> <li class="product"> <a href="tantalum-diilicide-12039-79-1">Tantalum Silicide TaSi<sub>2</sub></a></li> <li class="product"> <a href="tantalum-silicide-12067-56-0">Tantalum Silicide Ta<sub>5</sub>Si<sub>3</sub></a></li> <li class="product"> <a href="tantalum-trichloride-13569-67-0">Tantalum Trichloride</a></li> <li class="product"> <a href="tantalum-titanium-oxide">Tantalum Titanium Oxide</a></li> <li class="product"> <a href="tantalum-zirconium-oxide">Tantalum Zirconium Oxide</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#metallic-products"><span class="panel-title">Metallic Forms</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="metallic-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="platinum-coated-tantalum-anodes">Tantalum Anode, Platinum coated</a></li> <li class="product"> <a href="tantalum-balls-7440-25-7">Tantalum Balls</a></li> <li class="product"> <a href="tantalum-band-7440-25-7">Tantalum Bands</a></li> <li class="product"> <a href="tantalum-bars-7440-25-7">Tantalum Bars</a></li> <li class="product"> <a href="tantalum-blocks-7440-25-7">Tantalum Blocks</a></li> <li class="product"> <a href="tantalum-boats-7440-25-7">Tantalum Boats</a></li> <li class="product"> <a href="tantalum-capacitor-paste-7440-25-7">Tantalum Capacitor Paste</a></li> <li class="product"> <a href="tantalum-capacitor-powder-7440-25-7">Tantalum Capacitor Powder</a></li> <li class="product"><a href="tantalum-chunk-7440-25-7">Tantalum Chunk</a></li> <li class="product"> <a href="tantalum-coil-7440-25-7">Tantalum Coil</a></li> <li class="product"> <a href="tantalum-columns-7440-25-7">Tantalum Columns</a></li> <li class="product"> <a href="tantalum-concentrate-7440-25-7">Tantalum Concentrate</a></li> <li class="product"> <a href="tantalum-crucibles-7440-25-7">Tantalum Crucibles</a></li> <li class="product"> <a href="tantalum-cubes-7440-25-7">Tantalum Cubes</a></li> <li class="product"> <a href="tantalum-cylinder-7440-25-7">Tantalum Cylinder</a></li> <li class="product"> <a href="tantalum-disc-7440-25-7">Tantalum Disc</a></li> <li class="product"> <a href="tantalum-electrode-7440-25-7">Tantalum Electrodes</a></li> <li class="product"> <a href="tantalum-flake-7440-25-7">Tantalum Flake</a></li> <li class="product"> <a href="tantalum-flange-7440-25-7">Tantalum Flanges</a></li> <li class="product"> <a href="tantalum-foam-7440-25-7">Tantalum Foam</a></li> <li class="product"> <a href="tantalum-foil-7440-25-7">Tantalum Foil</a></li> <li class="product"> <a href="tantalum-furnace-elements-7440-25-7">Tantalum Furnace Elements</a></li> <li class="product"> <a href="tantalum-granules-7440-25-7">Tantalum Granules</a></li> <li class="product"> <a href="tantalum-gauze-7440-25-7">Tantalum Gauze </a></li> <li class="product"> <a href="tantalum-heat-exchangers-7440-25-7">Tantalum Heat Exchangers</a></li> <li class="product"> <a href="tantalum-high-temperature-shields-7440-25-7">Tantalum High Temperature Shields</a></li> <li class="product"> <a href="tantalum-honeycomb-7440-25-7">Tantalum Honeycomb</a></li> <li class="product"> <a href="tantalum-ingot-7440-25-7">Tantalum Ingot</a></li> <li class="product"> <a href="tantalum-lump-7440-25-7">Tantalum Lump</a></li> <li class="product"> <a href="tantalum-marker-bands-7440-25-7">Tantalum Marker Bands</a></li> <li class="product"> <a href="tantalum-mesh-7440-25-7">Tantalum Mesh</a></li> <li class="product"> <a href="tantalum-metal-7440-25-7">Tantalum Metal</a></li> <li class="product"> <a href="tantalum-microfoil-7440-25-7">Tantalum Microfoil</a></li> <li class="product"> <a href="tantalum-microleaf-7440-25-7">Tantalum Microleaf</a></li> <li class="product"> <a href="tantalum-nuts-7440-25-7">Tantalum Nuts</a></li> <li class="product"> <a href="tantalum-particles-7440-25-7">Tantalum Particles</a></li> <li class="product"> <a href="tantalum-parts-7440-25-7">Tantalum Parts</a></li> <li class="product"> <a href="tantalum-pellets-7440-25-7">Tantalum Pellets</a></li> <li class="product"> <a href="tantalum-pieces-7440-25-7">Tantalum Pieces</a></li> <li class="product"> <a href="tantalum-plate-7440-25-7">Tantalum Plates</a></li> <li class="product"> <a href="tantalum-powder-7440-25-7">Tantalum Powder</a></li> <li class="product"> <a href="tantalum-puck-7440-25-7">Tantalum Puck</a></li> <li class="product"> <a href="tantalum-ribbon-7440-25-7">Tantalum Ribbon</a></li> <li class="product"><a href="platinum-coated-tantalum-ribbon-7440-25-7">Tantalum Ribbon, Platinum-coated</a></li> <li class="product"><a href="platinum-coated-tantalum-wire-7440-25-7">Tantalum Wire, Platinum-coated</a></li> <li class="product"> <a href="tantalum-ring-7440-25-7">Tantalum Rings</a></li> <li class="product"> <a href="tantalum-rod-7440-25-7">Tantalum Rod</a></li> <li class="product"> <a href="tantalum-samples-7440-25-7">Tantalum Samples</a></li> <li class="product"> <a href="tantalum-shavings-7440-25-7">Tantalum Shaving</a></li> <li class="product"> <a href="tantalum-sheet-7440-25-7">Tantalum Sheets</a></li> <li class="product"> <a href="tantalum-shot-7440-25-7">Tantalum Shot</a></li> <li class="product"><a href="tantalum-single-crystal-7440-25-7">Tantalum Single Crystal</a></li> <li class="product"> <a href="tantalum-sleeves-7440-25-7">Tantalum Sleeves</a></li> <li class="product"> <a href="tantalum-slugs-7440-25-7">Tantalum Slugs</a></li> <li class="product"> <a href="tantalum-specimen-7440-25-7">Tantalum Specimens</a></li> <li class="product"> <a href="tantalum-spheres-7440-25-7">Tantalum Spheres</a></li> <li class="product"> <a href="tantalum-sponge-7440-25-7">Tantalum Sponge</a></li> <li class="product"> <a href="tantalum-spring-7440-25-7">Tantalum Spring</a></li> <li class="product"> <a href="tantalum-strip-7440-25-7">Tantalum Strip</a></li> <li class="product"> <a href="tantalum-tape-7440-25-7">Tantalum Tape</a></li> <li class="product"> <a href="tantalum-tube-7440-25-7">Tantalum Tube</a></li> <li class="product"> <a href="tantalum-vessels-7440-25-7">Tantalum Vessels</a></li> <li class="product"> <a href="tantalum-wafer-7440-25-7">Tantalum Wafer</a></li> <li class="product"> <a href="tantalum-washer-7440-25-7">Tantalum Washer</a></li> <li class="product"> <a href="tantalum-wire-7440-25-7">Tantalum Wire</a></li> <li class="product"><a href="platinum-coated-tantalum-wire-7440-25-7">Tantalum Wire, Platinum-coated</a></li> <li class="product"> <a href="tantalum-wool-7440-25-7">Tantalum Wool</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#alloy-products"><span class="panel-title">Alloys</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="alloy-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="aluminum-niobium-tantalum-alloy">Aluminum Niobium Tantalum Alloy</a></li> <li class="product"> <a href="chromium-cobalt-platinum-tantalum-alloy">Chromium Cobalt Platinum Tantalum</a></li> <li class="product"> <a href="chromium-cobalt-tantalum-alloy">Chromium Cobalt Tantalum</a></li> <li class="product"> <a href="chromium-iron-tantalum-alloy">Chromium Iron Tantalum</a></li> <li class="product"> <a href="cobalt-tantalum-zirconium-alloy">Cobalt Tantalum Zirconium</a></li> <li class="product"><a href="iridium-tantalum-coated-titanium-anodes">Iridium-Tantalum coated Titanium Anodes</a></li> <li class="product"> <a href="iron-tantalum-alloy">Iron Tantalum</a></li> <li class="product"><a href="niobium-tantalum-alloy">Niobium Tantalum Alloy</a></li> <li class="product"> <a href="tantalum-aluminum-alloy">Tantalum Aluminum Alloy</a></li> <li class="product"> <a href="tantalum-molybdenum-alloy">Tantalum Molybdenum Alloy</a></li> <li class="product"> <a href="tantalum-molybdenum-alloy">Tantalum Molybdenum Foil</a></li> <li class="product"> <a href="tantalum-titanium-alloy">Tantalum Titanium Alloy</a></li> <li class="product"> <a href="tantalum-tungsten-alloy">Tantalum Tungsten Alloy</a></li> <li class="product"> <a href="tantalum-tungsten-foil">Tantalum Tungsten Foil</a></li> <li class="product"> <a href="tantalum-zirconium-alloy">Tantalum Zirconium Alloy</a></li> <li class="product"> <a href="titanium-niobium-tantalum-alloy">Titanium Niobium Tantalum Alloy</a></li> <li class="product"> <a href="titanium-based-niobium-zirconium-tantalum-alloy">Titanium based Niobium Zirconium Tantalum Alloy</a></li> <li class="product"> <a href="titanium-tantalum-alloy">Titanium Tantalum Alloy</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#oxide-products"><span class="panel-title">Oxide Forms</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="oxide-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="tantalum-oxide-nanoparticles-nanopowder-1314-61-0">Tantalum Oxide Nanoparticles</a></li> <li class="product"> <a href="tantalum-oxide-particles-1314-61-0">Tantalum Oxide Particles</a></li> <li class="product"> <a href="tantalum-oxide-pellets-1314-61-0">Tantalum Oxide Pellets</a></li> <li class="product"> <a href="tantalum-oxide-pieces-1314-61-0">Tantalum Oxide Pieces</a></li> <li class="product"> <a href="tantalum-oxide-powder-1314-61-0">Tantalum Oxide Powder</a></li> <li class="product"> <a href="tantalum-oxide-rotatable-sputtering-target-1314-61-0">Tantalum Oxide Rotatable Sputtering Target</a></li> <li class="product"> <a href="tantalum-oxide-shot-1314-61-0">Tantalum Oxide Shot</a></li> <li class="product"> <a href="tantalum-oxide-sputtering-target-1314-61-0">Tantalum Oxide Sputtering Target</a></li> <li class="product"> <a href="tantalum-oxide-tablets-1314-61-0">Tantalum Oxide Tablets</a></li> <li class="product"> <a href="tantalum-pentoxide-1314-61-0">Tantalum Pentoxide</a></li> <li class="product"> <a href="tantalum-titanium-oxide">Tantalum-Titanium Oxide</a></li> <li class="product"> <a href="tantalum-zirconium-oxide">Tantalum Zirconium Oxide</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#organometallic-products"><span class="panel-title">Organometallics</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="organometallic-products" class="panel-body collapse row"> <ul class="grid grid2 no-dot"> <li class="product"> <a href="bis-pentakis-ethoxy-dimethylaminoethoxy-tantalum-strontium-220057-73-8">Bis[pentakis(ethoxy)dimethylaminoethoxy)tantalum]strontium</a></li> <li class="product"><a href="lithium-tantalum-ethoxide-127503-04-2">Lithium Tantalum Ethoxide</a></li> <li class="product"><a href="lithium-tantalum-isopropoxide-21864-24-4">Lithium Tantalum Isopropoxide</a></li> <li class="product"> <a href="pentakis-dimethylamino-tantalum-v-19824-59-0">Pentakis(dimethylamino)tantalum(V)</a></li> <li class="product"> <a href="pentamethylcyclopentadienyltantalum-iv-tetrachloride-71414-47-6">Pentamethylcyclopentadienyltantalum(IV) Tetrachloride</a></li> <li class="product"><a href="potassium-tantalum-isopropoxide-21864-26-6">Potassium Tantalum Isopropoxide</a></li> <li class="product"> <a href="t-amylimidotris-dimethylamido-tantalum-v-taimata-629654-53-1">t-Amylimidotris(dimethylamido)Tantalum(V)</a></li> <li class="product"> <a href="t-butylimidotris-dimethylamido-tantalum-v-69039-11-8">t-Butylimidotris(dimethylamido)tantalum(V)</a></li> <li class="product"> <a href="tantalum-v-butoxide-51094-78-1">Tantalum(V) Butoxide</a></li> <li class="product"> <a href="tantalum-v-ethoxide-6074-84-6">Tantalum(V) Ethoxide</a></li> <li class="product"> <a href="tantalum-isopropoxide-16761-83-4">Tantalum(V) Isopropoxide</a></li> <li class="product"><a href="tantalum-v-isopropoxide-solution-16761-83-4">Tantalum(V) Isopropoxide Solution</a></li> <li class="product"> <a href="tantalum-v-methoxide-865-35-0">Tantalum(V) Methoxide</a></li> <li class="product"> <a href="tantalum-oxalate-31791-37-4">Tantalum Oxalate</a></li> <li class="product"> <a href="tantalum-v-tetraethoxy-acetylacetonate-20219-33-4">Tantalum(V) (tetraethoxy)(acetylacetonate)</a></li> <li class="product"><a href="tert-butylimino-bis-diethylamino-cyclopentadienyltantalum-852212-55-6">(tert-butylimino)bis(diethylamino)cyclopentadienyltantalum</a></li> <li class="product"><a href="tri-chloro-di-pyridyl-tertbutylimido-tantalum-157464-07-8">Tri(chloro)di(pyridyl)(tertbutylimido)tantalum</a></li> <li class="product"> <a href="tris-diethylamido-tert-butylimido-tantalum-v-169896-41-7">Tris(diethylamido)(tert-butylimido)tantalum(V)</a></li> <li class="product"> <a href="tris-diethylamino-ethylimino-tantalum-v-67313-80-8">Tris(diethylamino)(ethylimino)tantalum(V)</a></li> <li class="product"> <a href="tris-ethylmethylamido-tert-butylimido-tantalum-v-511292-99-2">Tris(ethylmethylamido)(tert-butylimido)tantalum(V)</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#nanomaterial-products"><span class="panel-title">Nanomaterials</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="nanomaterial-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="tantalum-carbide-nanoparticles-nanopowder-12070-06-3">Tantalum Carbide Nanoparticles</a></li> <li class="product"> <a href="tantalum-nanoprisms-7440-25-7">Tantalum Nanoprisms</a></li> <li class="product"> <a href="tantalum-nanoparticles-7440-25-7">Tantalum Nanoparticles</a></li> <li class="product"><a href="tantalum-nanoparticles-dispersion-7440-25-7">Tantalum Nanoparticle Dispersion</a></li> <li class="product"> <a href="tantalum-nanorods-7440-25-7">Tantalum Nanorods</a></li> <li class="product"> <a href="tantalum-oxide-nanoparticle-dispersion-1314-61-0">Tantalum Oxide Nanoparticle Dispersion</a></li> <li class="product"> <a href="tantalum-oxide-nanoparticles-nanopowder-1314-61-0">Tantalum Oxide Nanoparticles</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#semiconductor-optical-products"><span class="panel-title">Semiconductor & Optical</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="semiconductor-optical-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"><a href="agtas3-crystal">AgTaS<sub>3</sub> Crystal</a></li> <li class="product"> <a href="lsat-single-crystal-substrate">LSAT Single Crystral Substrate</a></li> <li class="product"> <a href="lithium-tantalate-12031-66-2">Lithium Tantalate</a></li> <li class="product"> <a href="lithium-tantalate-wafer-12031-66-2">Lithium Tantalate Wafer</a></li> <li class="product"><a href="taco2te2-crystal">TaCo<sub>2</sub>Te<sub>2</sub> Crystal</a></li> <li class="product"><a href="tanis5-crystal">TaNiS<sub>5</sub> Crystal</a></li> <li class="product"><a href="ta2nis5-crystal">Ta<sub>2</sub>NiS<sub>5</sub> Crystal</a></li> <li class="product"><a href="ta2nise5-crystal">Ta<sub>2</sub>NiSe<sub>5</sub> Crystal</a></li> <li class="product"><a href="tani2te2-crystal">TaNi<sub>2</sub>Te<sub>2</sub> Crystal</a></li> <li class="product"><a href="tani2te3-crystal">TaNi<sub>2</sub>Te<sub>3</sub> Crystal</a></li> <li class="product"><a href="ta2nite5-crystal">Ta<sub>2</sub>NiTe<sub>5</sub> Crystal</a></li> <li class="product"><a href="tantalum-diselenide-crystal-12039-55-3">Tantalum Diselenide Crystal</a></li> <li class="product"> <a href="tantalum-phosphide-12037-63-7">Tantalum Phosphide</a></li> <li class="product"> <a href="tantalum-selenide-12039-55-3">Tantalum Selenide</a></li> <li class="product"> <a href="tantalum-sulfide-12143-72-5">Tantalum Sulfide</a></li> <li class="product"> <a href="tantalum-sulfide-sputtering-target-12143-72-5">Tantalum Sulfide Sputtering Target</a></li> <li class="product"> <a href="tantalum-telluride-12067-66-2">Tantalum Telluride</a></li> <li class="product"><a href="tas3-crystals">Tantalum Trisulfide (TaS<sub>3</sub>) Crystals</a></li> <li class="product"><a href="tawse2-crystal">TaWSe<sub>2</sub> Crystal</a></li> <li class="product"><a href="wtase4-crystal">WTaSe<sub>4</sub> Crystal</a></li> </ul> </div> </div> <div class="panel panel-products"><div class="panel-heading activate-panel" data-toggle="collapse" data-target="#sputtering-target-products"><span class="panel-title">Sputtering Targets</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div><div id="sputtering-target-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"> <a href="aluminum-niobium-tantalum-sputtering-target">Aluminum Niobium Tantalum Sputtering Target</a></li> <li class="product"> <a href="aluminum-niobium-tantalum-rotatable-sputtering-target">Aluminum Niobium Tantalum Rotatable Sputtering Target</a></li> <li class="product"> <a href="aluminum-tantalum-sputtering-target">Aluminum Tantalum Sputtering Target</a></li> <li class="product"> <a href="chromium-molybdenum-tantalum-sputtering-target">Chromium Molybdenum Tantalum Sputtering Target</a></li> <li class="product"> <a href="cobalt-chromium-tantalum-boron-sputtering-target">Cobalt Chromium Tantalum Boron Sputtering Target</a></li> <li class="product"> <a href="cobalt-chromium-tantalum-sputtering-target">Cobalt Chromium Tantalum Sputtering Target</a></li> <li class="product"><a href="cobalt-tantalum-zirconium-alloy-sputtering-target">Cobalt Tantalum Zirconium Alloy Sputtering Target</a></li> <li class="product"><a href="iron-tantalum-carbon-sputtering-target">Iron Tantalum Carbon Sputtering Target </a></li> <li class="product"><a href="lithium-tantalate-sputtering-target-12031-66-2">Lithium Tantalate Sputtering Target</a></li> <li class="product"> <a href="niobium-tantalum-alloy-sputtering-target">Niobium Tantalum Alloy Sputtering Target</a></li> <li class="product"><a href="strontium-bismuth-tantalate-sputtering-target">Strontium Bismuth Tantalate Sputtering Target</a></li> <li class="product"> <a href="tantalum-aluminum-sputtering-target">Tantalum Aluminum Sputtering Target</a></li> <li class="product"> <a href="tantalum-arsenide-sputtering-target">Tantalum Arsenide Sputtering Target</a></li> <li class="product"> <a href="tantalum-boride-sputtering-target-12007-35-1">Tantalum Boride Sputtering Target</a></li> <li class="product"> <a href="tantalum-carbide-sputtering-target-12070-06-3">Tantalum Carbide Sputtering Target</a></li> <li class="product"><a href="tantalum-hafnium-carbide-sputtering-target-71243-79-3">Tantalum Hafnium Carbide Sputtering Target</a></li> <li class="product"> <a href="tantalum-molybdenum-sputtering-target">Tantalum Molybdenum Sputtering Target</a></li> <li class="product"> <a href="tantalum-nitride-sputtering-target-12033-62-4">Tantalum Nitride Sputtering Target</a></li> <li class="product"> <a href="tantalum-oxide-rotatable-sputtering-target-1314-61-0">Tantalum Oxide Rotatable Sputtering Target</a></li> <li class="product"> <a href="tantalum-oxide-sputtering-target-1314-61-0">Tantalum Oxide Sputtering Target</a></li> <li class="product"> <a href="tantalum-phosphide-sputtering-target-12037-63-7">Tantalum Phosphide Sputtering Target</a></li> <li class="product"> <a href="tantalum-rotatable-sputtering-target-7440-25-7">Tantalum Rotatable Sputtering Target</a></li> <li class="product"> <a href="tantalum-selenide-sputtering-target-12039-55-3">Tantalum Selenide Sputtering Target</a></li> <li class="product"> <a href="tantalum-silicide-sputtering-target-12039-79-1">Tantalum Silicide TaSi<sub>2</sub> Sputtering Target</a></li> <li class="product"><a href="tantalum-silicide-sputtering-target-12067-56-0">Tantalum Silicide Ta<sub>5</sub>Si<sub>3</sub> Sputtering Target</a></li> <li class="product"> <a href="tantalum-sputtering-target-7440-25-7">Tantalum Sputtering Target</a></li> <li class="product"> <a href="tantalum-sulfide-sputtering-target-12143-72-5">Tantalum Sulfide Sputtering Target</a></li> <li class="product"> <a href="tantalum-telluride-sputtering-target-12067-66-2">Tantalum Telluride Sputtering Target</a></li> </ul> </div> </div> <div class="openclose"> <div class="openall">+ Open All</div> <div class="closeall">- Close All</div> </div> </div> <div id="products-intro"> <p> Tantalum has a number of interesting properties that make it particularly useful in electronic applications. It has the third highest melting point, surpassed only by <a href="re.html">rhenium</a> and <a href="ww.html">tungsten</a>, yet it is highly conductive to heat and electricity. This has made it the material of choice for the electronic capacitors used in most telecommunications and hand held electronics equipment, such as cell phones, laptop computers and pagers. Tantalum compounds, such as <a href="tantalum-oxide-1314-61-0">tantalum oxide</a> and <a href="tantalum-v-chloride-7721-01-9">tantalum chloride</a>, are the basis for dielectric coatings. <a href="tantalum-oxide-powder-1314-61-0"><img src="tantalum-oxide-powder.png" alt="High Purity (99.999%) Tantalum Oxide (Ta2O5) Powder" width="112" height="109" class="image-left" /></a>Tantalum is added to <a href="optical-materials.html">glass</a> for its high refractive index. It also has various applications in nuclear energy. Tantalum is available as <a href="tantalum-metal-7440-25-7">metal</a> and compounds with purities from 99% to 99.999% (ACS grade to <a href="Ultra_high_purity_metals_powders.htm">ultra-high purity</a>). Elemental or metallic forms include <a href="tantalum-pellets-7440-25-7">tantalum pellets</a>,<a href="tantalum-rod-7440-25-7"> rod</a>, <a href="tantalum-wire-7440-25-7">wire</a> and <a href="tantalum-granules-7440-25-7">granules</a> for evaporation source material purposes. <a href="tantalum-sputtering-target-7440-25-7"><img src="tantalum-sputtering-target.png" alt="High Purity (99.999%) Tantalum Sputtering Target" width="108" height="86" hspace="5" vspace="5" class="image-right" /></a> <a href="tantalum-nanoprisms-7440-25-7">Tantalum nanoparticles and nanopowders</a> provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits. Oxides are available in powder and dense pellet form for such uses as optical coating and thin film applications. <a href="oxides.html">Oxides</a> tend to be insoluble. <a href="Fluorides.html">Fluorides</a> are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Tantalum is also available in soluble forms including <a href="tantalum-v-chloride-7721-01-9">chloride</a>, <a href="tantalum-nitrate">nitrate</a>, and <a href="tantalum-acetate-solution-6074-84-6">acetate</a>. These compounds can be manufactured as <a href="solutions">solutions</a> at specified stoichiometries.</p><p class="centered">American Elements assists our Tantalum customers with fulfilling the due diligence reporting requirements of the Conflict Mineral Provision (Section 1502) of the Dodd-Frank Act.</p><br /> </div> </div> <div class="tab-pane" id="properties" role="tabpanel" aria-labelledby="tab3"> <h2>Tantalum Properties</h2> <p><img src="tantalum-block.png" alt="Tantalum(Ta) atomic and molecular weight, atomic number and elemental symbol" hspace="10" class="image-left"><strong>Tantalum</strong> is a Block D, Group 5, Period 6 element. The number of electrons in each of tantalum's shells is 2, 8, 18, 32, 11, 2 and its electron configuration is [Xe] 4f<sup>14</sup> 5d<sup>3</sup> 6s<sup>2</sup>. <img src="tantalum-bohr.jpg" alt="Tantalum Bohr Model" width="83" height="88" class="image-right" />The tantalum atom has a radius of 143.pm and its Van der Waals radius is 200.pm. In its elemental form, CAS 7440-25-7, tantalum has a gray blue appearance. <img src="elemental-tantalum.png" alt="High Purity (99.999%) Tantalum (Ta) Metal" width="64" height="68" class="image-left" />Tantalum is found in the minerals tantalite, microlite, wodginite, euxenite, and polycrase. Tantalum was first discovered by Anders G. Ekeberg in 1802 in Uppsala, Sweden. Due to the close relation of tantalum to <a href="nb.html">niobium</a> in the periodic table, Tantalum's name originates from the Greek word Tantalos, meaning Father of Niobe in Greek mythology. </p> <div id="table-wrapper"> <div class="panel-group expanding" id="accordion2"> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#general-properties">General Properties<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="general-properties"> <table class="table properties-table" > <tr> <th id="symbol">Symbol:</th> <td>Ta</td> </tr> <tr> <th id="atomic-number">Atomic Number:</th> <td>73</td> </tr> <tr> <th id="atomic-weight">Atomic Weight:</th> <td>180.9479</td> </tr> <tr> <th id="element-category">Element Category:</th> <td>transition metal</td> </tr> <tr> <th id="group-period-block">Group, Period, Block:</th> <td>5, 6, d</td> </tr> <tr> <th id="color">Color:</th> <td>gray blue</td> </tr> <tr> <th id="other-names">Other Names:</th> <td>Tantale, Tantal, Tántalo</td> </tr> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#physical-properties">Physical Properties<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div id="physical-properties" class="panel-collapse collapse"> <table class="properties-table table"> <tr> <th id="melting-point">Melting Point:</th> <td>3017 °C, 5463 °F, 3290 K</td> </tr> <tr> <th id="boiling-point">Boiling Point:</th> <td>5458 °C, 9856 °F, 5731 K</td> </tr> <tr> <th id="density">Density:</th> <td>16.69 g·cm<sup>3</sup></td> </tr> <tr> <th id="liquid-density">Liquid Density @ Melting Point:</th> <td>15 g·cm<sup>3</sup></td> </tr> <tr> <th id="density-20-degrees-C">Density @ 20°C:</th> <td>16.6 g/cm<sup>3</sup></td> </tr> <tr> <th id="solid-density">Density of Solid:</th> <td>16650 kg·m<sup>3</sup></td> </tr> <tr> <th id="specific-heat">Specific Heat:</th> <td>0.14 (kJ/kg K)</td> </tr> <tr> <th id="superconductivity-temperature">Superconductivity Temperature:</th> <td>4.47 [or -268.68 °C (-451.62 °F)] K</td> </tr> <tr> <th id="triple-point">Triple Point:</th> <td>N/A</td> </tr> <tr> <th id="critical-point">Critical Point:</th> <td>N/A</td> </tr> <tr> <th id="fusion-heat">Heat of Fusion (kJ·mol<sup>-1</sup>):</th> <td>31.4</td> </tr> <tr> <th id="vaporization-heat">Heat of Vaporization (kJ·mol<sup>-1</sup>):</th> <td>758.22</td> </tr> <tr> <th id="atomization-heat">Heat of Atomization (kJ·mol<sup>-1</sup>):</th> <td>781.425</td> </tr> <tr> <th id="thermal-conductivity">Thermal Conductivity:</th> <td>57.5 W·m<sup>-1</sup>·K<sup>-1</sup></td> </tr> <tr> <th id="thermal-expansion">Thermal Expansion:</th> <td>(25 °C) 6.3 µm·m<sup>-1</sup>·K<sup>-1</sup></td> </tr> <tr> <th id="electrical-resistivity">Electrical Resistivity:</th> <td>(20 °C) 131 nΩ·m</td> </tr> <tr> <th id="tensile-strength">Tensile Strength:</th> <td>N/A</td> </tr> <tr> <th id="molar-heat-capacity">Molar Heat Capacity:</th> <td>25.36 J·mol<sup>-1</sup>·K<sup>-1</sup></td> </tr> <tr> <th id="youngs-modulus">Young's Modulus:</th> <td>186 GPa</td> </tr> <tr> <th id="shear-modulus">Shear Modulus:</th> <td>69 GPa</td> </tr> <tr> <th id="bulk-modulus">Bulk Modulus:</th> <td>200 GPa</td> </tr> <tr> <th id="poisson-ratio">Poisson Ratio:</th> <td>0.34</td> </tr> <tr> <th id="mohs-hardness">Mohs Hardness:</th> <td>6.5</td> </tr> <tr> <th id="vickers-hardness">Vickers Hardness:</th> <td>873 MPa</td> </tr> <tr> <th id="brinell-hardness">Brinell Hardness:</th> <td>800 MPa</td> </tr> <tr> <th id="speed-of-sound">Speed of Sound:</th> <td>(20 °C) 3400 m·s<sup>-1</sup></td> </tr> <tr> <th id="pauling-electronegativity">Pauling Electronegativity:</th> <td>1.5</td> </tr> <tr> <th id="sanderson-electronegativity">Sanderson Electronegativity:</th> <td>N/A</td> </tr> <tr> <th id="allerd-rochow-electronegativity">Allred Rochow Electronegativity:</th> <td>1.33</td> </tr> <tr> <th id="mulliken-jaffe-electronegativity">Mulliken-Jaffe Electronegativity:</th> <td>N/A</td> </tr> <tr> <th id="allen-electronegativity">Allen Electronegativity:</th> <td>N/A</td> </tr> <tr> <th id="pauling-electropositivity">Pauling Electropositivity:</th> <td>2.5</td> </tr> <tr> <th id="reflectivity">Reflectivity (%):</th> <td>78</td> </tr> <tr> <th id="refractive-index">Refractive Index:</th> <td>N/A</td> </tr> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#chemical-properties">Chemical Properties<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div id="chemical-properties" class="panel-collapse collapse"> <table class="properties-table table"> <tr> <th id="electrons">Electrons:</th> <td>73</td> </tr> <tr> <th id="protons">Protons:</th> <td>73</td> </tr> <tr> <th id="neutrons">Neutrons:</th> <td>108</td> </tr> <tr> <th id="electron-configuration">Electron Configuration:</th> <td>[Xe] 4f<sup>14</sup> 5d<sup>3</sup> 6s<sup>2</sup></td> </tr> <tr> <th id="atomic-radius">Atomic Radius:</th> <td>146 pm</td> </tr> <tr> <th id="atomic-radius-non-bonded">Atomic Radius,<br /> non-bonded (Å):</th> <td>2.22</td> </tr> <tr> <th id="covalent-radius">Covalent Radius:</th> <td>170±8 pm</td> </tr> <tr> <th id="covalent-radius-non-bonded">Covalent Radius (Å):</th> <td>1.58</td> </tr> <tr> <th id="van-der-waals-radius">Van der Waals Radius:</th> <td>200 pm</td> </tr> <tr> <th id="oxidation-states">Oxidation States:</th> <td>5, 4, 3, 2, -1 (mildly acidic oxide)</td> </tr> <tr> <th id="phase">Phase:</th> <td>Solid</td> </tr> <tr> <th id="crystal-structure">Crystal Structure:</th> <td>body-centered cubic</td> </tr> <tr> <th id="magnetic-ordering">Magnetic Ordering:</th> <td>paramagnetic</td> </tr> <tr> <th id="electron-affinity">Electron Affinity (kJ·mol<sup>-1</sup>)</th> <td>31.057</td> </tr> <tr> <th id="1-ionization">1<sup>st</sup> Ionization Energy:</th> <td>761 kJ·mol<sup>-1</sup></td> </tr> <tr> <th id="2-ionization">2<sup>nd</sup> Ionization Energy:</th> <td>1500 kJ·mol<sup>-1</sup></td> </tr> <tr> <th id="3-ionization">3<sup>rd</sup> Ionization Energy:</th> <td>N/A</td> </tr> </table> </div> </div> </div> <div class="panel-group expanding" id="accordion3"> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#identifiers">Identifiers<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="identifiers"> <table class="table properties-table" > <tr> <th id="cas-number">CAS Number:</th> <td>7440-25-7</td> </tr> <tr> <th id="ec-number">EC Number:</th> <td>231-135-5</td> </tr> <tr> <th id="mdl-number">MDL Number:</th> <td>MFCD00011252</td> </tr> <tr> <th id="beilstein-number">Beilstein Number:</th> <td>N/A</td> </tr> <tr> <th id="smile-id">SMILES Identifier:</th> <td>[Ta]</td> </tr> <tr> <th id="inchi-id">InChI Identifier:</th> <td>InChI=1S/Ta</td> </tr> <tr> <th id="inchi-key">InChI Key:</th> <td>GUVRBAGPIYLISA-UHFFFAOYSA-N</td> </tr> <tr> <th id="pubchem-cid">PubChem CID:</th> <td>23956</td> </tr> <tr> <th id="chemspider-id">ChemSpider ID:</th> <td>22395</td> </tr> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#abundance">Abundance<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="abundance"> <table class="table properties-table" > <tr> <th class="abundance" id="earth-total">Earth - Total:</th> <td>23.3 ppb </td> </tr> <tr> <th class="abundance" id="mercury-total">Mercury - Total:</th> <td>17.9 ppb</td> </tr> <tr> <th class="abundance" id="venus-total">Venus - Total:</th> <td>24.4 ppb</td> </tr> <tr> <th class="abundance" id="abundance-earth-seawater-weight">Earth - Seawater (Oceans), ppb by weight:</th> <td>0.002</td> </tr> <tr> <th class="abundance" id="abundance-earth-seawater-atoms">Earth - Seawater (Oceans), ppb by atoms:</th> <td>0.000068</td> </tr> <tr> <th class="abundance" id="abundance-earth-crust-weight">Earth - Crust (Crustal Rocks), ppb by weight:</th> <td>1700</td> </tr> <tr> <th class="abundance" id="abundance-earth-crust-atoms">Earth - Crust (Crustal Rocks), ppb by atoms:</th> <td>190</td> </tr> <tr> <th class="abundance" id="abundance-sun-weight">Sun - Total, ppb by weight:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-sun-atoms">Sun - Total, ppb by atoms:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-stream-weight">Stream, ppb by weight:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-stream-atoms">Stream, ppb by atoms:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-meterorite-carbonaceous-weight">Meterorite (Carbonaceous), ppb by weight:</th> <td>20</td> </tr> <tr> <th class="abundance" id="abundance-meterorite-carbonaceous-atoms">Meterorite (Carbonaceous), ppb by atoms:</th> <td>2</td> </tr> <tr> <th class="abundance" id="abundance-human-body-weight">Typical Human Body, ppb by weight:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-human-body-atoms">Typical Human Body, ppb by atom:</th> <td>N/A</td> </tr> <tr> <th class="abundance" id="abundance-universe-weight">Universe, ppb by weight:</th> <td>0.08</td> </tr> <tr> <th class="abundance" id="abundance-universe-atoms">Universe, ppb by atom:</th> <td>0.0006</td> </tr> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"> <a data-toggle="collapse" class="activate-panel" href="#history">History<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="history"> <table class="table properties-table" > <tr> <th id="discovered">Discovered By:</th> <td>Anders Gustaf Ekeberg</td> </tr> <tr> <th id="discovery-date">Discovery Date:</th> <td>1802</td> </tr> <tr> <th id="first-isolation">First Isolation:</th> <td>N/A</td> </tr> </table> </div> </div> </div> </div> </div> <div class="tab-pane" id="safety" role="tabpanel" aria-labelledby="tab4"> <h2>Health, Safety & Transportation Information for Tantalum</h2> <p>Tantalum is not toxic in its elemental form; however, safety data for Tantalum and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the Products tab. The below information applies to elemental (metallic) Tantalum. </p> <table class="safety-table"> <thead> <tr> <th colspan="2" id="safety-data">Safety Data</th> </tr> </thead> <tbody> <tr> <th><a href="safety-information.html#signalword" >Signal Word </a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#hazardstatements" >Hazard Statements </a></th> <td>N/A</td> </tr> <tr> <th><a href="hazard-codes.html#hazardcodes" >Hazard Codes</a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#riskcodes" >Risk Codes </a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#safetyprecautions" >Safety Precautions </a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#rtecs" >RTECS Number </a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#transportation" >Transport Information</a></th> <td>N/A</td> </tr> <tr> <th><a href="safety-information.html#wgk" >WGK Germany </a></th> <td>nwg</td> </tr> <tr> <th><a href="hazard-codes.html" >Globally Harmonized System of <br /> Classification and Labelling (GHS) </a></th> <td>N/A</td> </tr> </tbody> </table> <div class="panel-group expanding" id="accordion4"> <div class="panel panel-products"><div class="panel-heading panel-heading-sds activate-panel active-panel" data-toggle="collapse" data-target="#sds"><span class="panel-title">Review and Print SDS for Tantalum Metal</span><span class="Arrowhead-Down-24 dropdown-icon"></span></div> <div id="sds" class="panel-body collapse in row"> <div class="view view-sds-pane view-id-sds_pane view-display-id-block sds-content view-dom-id-227d970201f90de81fc25695599c5bba"> <div class="view-header"> <div class="link-container"> <span class="print_pdf"><a href="https://www.americanelements.com/printpdf/tantalum-metal-7440-25-7/sds" title="Display a PDF version of this page." class="print-pdf" rel="nofollow">Create Printable PDF</a></span></div> <h2 class="centered">SAFETY DATA SHEET</h2> <div id="sds-date"> <div><strong>Date Created:</strong> 05/15/2015</div> <div><strong>Date Revised:</strong> 05/15/2015</div> </div> </div> <div class="view-content"> <div> <hr><h3>SECTION 1. IDENTIFICATION</h3> <p><strong>Product Name:</strong> Tantalum Metal</p> <p><strong>Product Number:</strong> All applicable American Elements product codes, e.g. TA-M-02, TA-M-03, TA-M-04, TA-M-05 </p> <p><strong>CAS #:</strong> 7440-25-7 </p> <p><strong>Relevant identified uses of the substance: </strong> Scientific research and development </p> <p>Supplier details:<br /> American Elements<br /> 1093 Broxton Ave. Suite 2000<br /> Los Angeles, CA 90024<br /> Tel: +1 310-208-0551<br /> Fax: +1 310-208-0351<br /> <br /> Emergency telephone number:<br /> Domestic, North America +1 800-424-9300<br /> International +1 703-527-3887</p> <hr> <h3>SECTION 2. HAZARDS IDENTIFICATION</h3> <p>Classification of the substance or mixture<br /> Classification according to Regulation (EC) No 1272/2008<br /> The substance is not classified as hazardous to health or the environment according to the CLP regulation.<br /> Classification according to Directive 67/548/EEC or Directive 1999/45/EC<br /> Not applicable<br /> Information concerning particular hazards for human and environment:<br /> No information known.<br /> Hazards not otherwise classified<br /> No information known.<br /> Label elements<br /> Labelling according to Regulation (EC) No 1272/2008<br /> Not applicable<br /> Hazard pictograms<br /> Not applicable<br /> Signal word<br /> Not applicable<br /> Hazard statements<br /> Not applicable<br /> WHMIS classification<br /> Not controlled<br /> Classification system<br /> HMIS ratings (scale 0-4)<br /> (Hazardous Materials Identification System)<br /> HEALTH<br /> FIRE<br /> REACTIVITY<br /> 0 <br /> 0 <br /> 0 <br /> Health (acute effects) = 0<br /> Flammability = 0<br /> Physical Hazard = 0<br /> Other hazards<br /> Results of PBT and vPvB assessment<br /> PBT:<br /> Not applicable.<br /> vPvB:<br /> Not applicable.</p> <hr> <h3>SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS</h3> <p>Chemical characterization: Substances<br /> CAS# Description:<br /> 7440-25-7 Tantalum<br /> Identification number(s):<br /> EC number:<br /> 231-135-5</p> <hr> <h3>SECTION 4. FIRST AID MEASURES</h3> <p>Description of first aid measures<br /> General information<br /> No special measures required.<br /> After inhalation<br /> Seek medical treatment in case of complaints.<br /> After skin contact<br /> Generally the product does not irritate the skin.<br /> After eye contact<br /> Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.<br /> After swallowing<br /> If symptoms persist consult doctor.<br /> Information for doctor<br /> Most important symptoms and effects, both acute and delayed<br /> No further relevant information available.<br /> Indication of any immediate medical attention and special treatment needed<br /> No further relevant information available.</p> <hr> <h3>SECTION 5. FIREFIGHTING MEASURES </h3> <p>Extinguishing media<br /> Suitable extinguishing agents<br /> Special powder for metal fires. Do not use water.<br /> For safety reasons unsuitable extinguishing agents<br /> Water<br /> Special hazards arising from the substance or mixture<br /> If this product is involved in a fire, the following can be released:<br /> Titanium oxides<br /> Advice for firefighters<br /> Protective equipment:<br /> No special measures required.</p> <hr> <h3>SECTION 6. ACCIDENTAL RELEASE MEASURES </h3> <p>Personal precautions, protective equipment and emergency procedures<br /> Not required.<br /> Environmental precautions:<br /> Do not allow material to be released to the environment without proper governmental permits.<br /> Do not allow product to reach sewage system or any water course.<br /> Do not allow to penetrate the ground/soil.<br /> Methods and material for containment and cleaning up:<br /> Pick up mechanically<br /> Prevention of secondary hazards:<br /> No special measures required.<br /> Reference to other sections<br /> See Section 7 for information on safe handling<br /> See Section 8 for information on personal protection equipment.<br /> See Section 13 for disposal information.</p> <hr> <h3>SECTION 7. HANDLING AND STORAGE </h3> <p>Handling<br /> Precautions for safe handling<br /> Keep container tightly sealed.<br /> Store in cool, dry place in tightly closed containers.<br /> Information about protection against explosions and fires:<br /> No special measures required.<br /> Conditions for safe storage, including any incompatibilities<br /> Storage<br /> Requirements to be met by storerooms and receptacles:<br /> No special requirements.<br /> Information about storage in one common storage facility:<br /> Not required.<br /> Further information about storage conditions:<br /> Keep container tightly sealed.<br /> Store in cool, dry conditions in well sealed containers.<br /> Specific end use(s)<br /> No further relevant information available.</p> <hr> <h3>SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION </h3> <p>Additional information about design of technical systems:<br /> No further data; see section 7.<br /> Control parameters<br /> Components with limit values that require monitoring at the workplace:<br /> 7440-25-7 Tantalum (100.0%)<br /> PEL (USA) Long-term value: 5 mg/m³<br /> metal<br /> REL (USA) Short-term value: 10 mg/m³<br /> Long-term value: 5 mg/m³<br /> Metal<br /> TLV (USA) metal; TLV withdrawn due to insufficient data<br /> EL (Canada) Long-term value: 5 mg/m³<br /> metal<br /> EV (Canada) Long-term value: 10 mg/m³<br /> metal and oxide (total dust)<br /> Additional information: No data<br /> Exposure controls<br /> Personal protective equipment<br /> General protective and hygienic measures<br /> The usual precautionary measures for handling chemicals should be followed.<br /> Maintain an ergonomically appropriate working environment.<br /> Breathing equipment: Not required.<br /> Protection of hands: Not required.<br /> Penetration time of glove material (in minutes)<br /> Not determined<br /> Eye protection: Safety glasses<br /> Body protection: Protective work clothing</p> <hr> <h3>SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES</h3> <p>Information on basic physical and chemical properties<br /> General Information<br /> Appearance:<br /> Form: Solid in various forms<br /> Color: Grey to silver<br /> Odor: Odorless<br /> Odor threshold: Not determined.<br /> pH-value: Not applicable.<br /> Change in condition<br /> Melting point/Melting range: 2996 °C (5425 °F)<br /> Boiling point/Boiling range: 5429 °C (9804 °F)<br /> Sublimation temperature / start: Not determined<br /> Flammability (solid, gaseous)<br /> Not determined.<br /> Ignition temperature: Not determined<br /> Decomposition temperature: Not determined<br /> Auto igniting: Not determined.<br /> Danger of explosion: Not determined.<br /> Explosion limits:<br /> Lower: Not determined<br /> Upper: Not determined<br /> Vapor pressure: Not applicable.<br /> Density at 20 °C (68 °F): 16.69 g/cm³ (139.278 lbs/gal)<br /> Relative density<br /> Not determined.<br /> Vapor density<br /> Not applicable.<br /> Evaporation rate<br /> Not applicable.<br /> Solubility in / Miscibility with Water: Insoluble<br /> Partition coefficient (n-octanol/water): Not determined.<br /> Viscosity:<br /> dynamic: Not applicable.<br /> kinematic: Not applicable.<br /> Other information<br /> No further relevant information available.</p> <hr> <h3>SECTION 10. STABILITY AND REACTIVITY </h3> <p>Reactivity<br /> No information known.<br /> Chemical stability<br /> Stable under recommended storage conditions.<br /> Thermal decomposition / conditions to be avoided:<br /> Decomposition will not occur if used and stored according to specifications.<br /> Possibility of hazardous reactions<br /> No dangerous reactions known<br /> Conditions to avoid<br /> No further relevant information available.<br /> Incompatible materials:<br /> No information known.<br /> Hazardous decomposition products:<br /> Titanium oxides</p> <hr> <h3>SECTION 11. TOXICOLOGICAL INFORMATION </h3> <p>Information on toxicological effects<br /> Acute toxicity:<br /> The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicity data for this substance.<br /> LD/LC50 values that are relevant for classification:<br /> No data<br /> Skin irritation or corrosion:<br /> No irritant effect.<br /> Eye irritation or corrosion:<br /> No irritant effect.<br /> Sensitization:<br /> No sensitizing effects known.<br /> Germ cell mutagenicity:<br /> No effects known.<br /> Carcinogenicity:<br /> No classification data on carcinogenic properties of this material is available from the EPA, IARC, NTP, OSHA or ACGIH.<br /> The Registry of Toxic Effects of Chemical Substances (RTECS) contains tumorigenic and/or carcinogenic and/or neoplastic data for this substance.<br /> Reproductive toxicity:<br /> No effects known.<br /> Specific target organ system toxicity - repeated exposure:<br /> No effects known.<br /> Specific target organ system toxicity - single exposure:<br /> No effects known.<br /> Aspiration hazard:<br /> No effects known.<br /> Subacute to chronic toxicity:<br /> No effects known.<br /> Additional toxicological information:<br /> To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.</p> <hr> <h3>SECTION 12. ECOLOGICAL INFORMATION </h3> <p>Toxicity<br /> Aquatic toxicity:<br /> No further relevant information available.<br /> Persistence and degradability<br /> No further relevant information available.<br /> Bioaccumulative potential<br /> No further relevant information available.<br /> Mobility in soil<br /> No further relevant information available.<br /> Additional ecological information:<br /> General notes:<br /> Do not allow material to be released to the environment without proper governmental permits.<br /> Do not allow undiluted product or large quantities to reach ground water, water course or sewage system.<br /> Avoid transfer into the environment.<br /> Results of PBT and vPvB assessment<br /> PBT:<br /> Not applicable.<br /> vPvB:<br /> Not applicable.<br /> Other adverse effects<br /> No further relevant information available.</p> <hr> <h3>SECTION 13. DISPOSAL CONSIDERATIONS </h3> <p>Waste treatment methods<br /> Recommendation<br /> Consult state, local or national regulations to ensure proper disposal.<br /> Uncleaned packagings:<br /> Recommendation:<br /> Disposal must be made according to official regulations.</p> <hr> <h3>SECTION 14. TRANSPORT INFORMATION </h3> <p>UN-Number<br /> DOT, ADN, IMDG, IATA<br /> Not applicable<br /> UN proper shipping name<br /> DOT, ADN, IMDG, IATA<br /> Not applicable<br /> Transport hazard class(es)<br /> DOT, ADR, ADN, IMDG, IATA<br /> Class<br /> Not applicable<br /> Packing group<br /> DOT, IMDG, IATA<br /> Not applicable<br /> Environmental hazards: Not applicable.<br /> Special precautions for user<br /> Not applicable.<br /> Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code<br /> Not applicable.<br /> Transport/Additional information: DOT<br /> Marine Pollutant (DOT): No</p> <hr> <h3>SECTION 15. REGULATORY INFORMATION </h3> <p>Safety, health and environmental regulations/legislation specific for the substance or mixture<br /> National regulations<br /> All components of this product are listed in the U.S. Environmental Protection Agency Toxic Substances Control Act Chemical substance Inventory.<br /> All components of this product are listed on the Canadian Domestic Substances List (DSL).<br /> SARA Section 313 (specific toxic chemical listings)<br /> Substance is not listed.<br /> California Proposition 65<br /> Prop 65 - Chemicals known to cause cancer<br /> Substance is not listed.<br /> Prop 65 - Developmental toxicity<br /> Substance is not listed.<br /> Prop 65 - Developmental toxicity, female<br /> Substance is not listed.<br /> Prop 65 - Developmental toxicity, male<br /> Substance is not listed.<br /> Information about limitation of use:<br /> For use only by technically qualified individuals.<br /> Other regulations, limitations and prohibitive regulations<br /> Substance of Very High Concern (SVHC) according to the REACH Regulations (EC) No. 1907/2006.<br /> Substance is not listed.<br /> The conditions of restrictions according to Article 67 and Annex XVII of the Regulation (EC) No 1907/2006 (REACH) for the manufacturing, placing on the market and use must be observed.<br /> Substance is not listed.<br /> Annex XIV of the REACH Regulations (requiring Authorisation for use)<br /> Substance is not listed.<br /> REACH - Pre-registered substances<br /> Substance is listed</p> <hr><h3>16. OTHER INFORMATION</h3> <p>Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2016 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY. </p> </div> </div></div> </div> </div> </div> </div> <div class="tab-pane" id="isotopes" role="tabpanel" aria-labelledby="tab5"> <h2>Tantalum Isotopes</h2> <p>Naturally occuring tantalum (Ta) has two stable isotopes: <sup>180</sup>Ta (0.012%) and <sup>181</sup>Ta (99.988%).</p> <table class="isotopes-table"> <tr> <th scope="col" id="nuclide">Nuclide</th> <th scope="col" id="mass">Isotopic Mass</th> <th scope="col" id="half-life">Half-Life</th> <th scope="col" id="decay">Mode of Decay</th> <th scope="col" id="nuclear-spin">Nuclear Spin</th> <th scope="col" id="magnetic-moment">Magnetic Moment</th> <th scope="col" id="binding-energy">Binding Energy (MeV)</th> <th scope="col" id="natural-abundance">Natural Abundance<br /> (% by atom)</th> </tr> <tr> <th scope="row"> <sup>155</sup>Ta</th> <td>154.97459(54)#</td> <td>13(4) µs [12(+4-3) µs]</td> <td>Unknown</td> <td>(11/2-)</td> <td>N/A</td> <td>1198.24</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>156</sup>Ta</th> <td>155.97230(43)#</td> <td>144(24) ms</td> <td>ß<sup>+</sup> to <sup>156</sup>Hf; p to <sup>155</sup>Lu</td> <td>(2-)</td> <td>N/A</td> <td>1206.32</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>157</sup>Ta</th> <td>156.96819(22)</td> <td>10.1(4) ms</td> <td>a to <sup>153</sup>Lu; ß<sup>+</sup> to <sup>157</sup>Hf</td> <td>1/2+</td> <td>N/A</td> <td>1223.71</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>158</sup>Ta</th> <td>157.96670(22)#</td> <td>49(8) ms</td> <td>a to <sup>154</sup>Lu; ß<sup>+</sup> to <sup>158</sup>Hf</td> <td>(2-)</td> <td>N/A</td> <td>1231.79</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>159</sup>Ta</th> <td>158.963018(22)</td> <td>1.04(9) s</td> <td>ß<sup>+</sup> to <sup>159</sup>Hf; a to <sup>155</sup>Lu</td> <td>(1/2+)</td> <td>N/A</td> <td>1239.87</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>160</sup>Ta</th> <td>159.96149(10)</td> <td>1.70(20) s</td> <td>a to <sup>156</sup>Lu; ß<sup>+</sup> to <sup>160</sup>Hf</td> <td>(2#)-</td> <td>N/A</td> <td>1247.95</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>161</sup>Ta</th> <td>160.95842(6)#</td> <td>3# s</td> <td>ß<sup>+</sup> to <sup>161</sup>Hf; a to <sup>157</sup>Lu</td> <td>1/2+#</td> <td>N/A</td> <td>1265.34</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>162</sup>Ta</th> <td>161.95729(6)</td> <td>3.57(12) s</td> <td>ß<sup>+</sup> to <sup>162</sup>Hf; a to <sup>158</sup>Lu</td> <td>3+#</td> <td>N/A</td> <td>1273.42</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>163</sup>Ta</th> <td>162.95433(4)</td> <td>10.6(18) s</td> <td>ß<sup>+</sup> to <sup>163</sup>Hf; a to <sup>159</sup>Lu</td> <td>1/2+#</td> <td>N/A</td> <td>1281.5</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>164</sup>Ta</th> <td>163.95353(3)</td> <td>14.2(3) s</td> <td>ß<sup>+</sup> to <sup>164</sup>Hf</td> <td>(3+)</td> <td>N/A</td> <td>1289.58</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>165</sup>Ta</th> <td>164.950773(19)</td> <td>31.0(15) s</td> <td>ß<sup>+</sup> to <sup>165</sup>Hf</td> <td>5/2-#</td> <td>N/A</td> <td>1297.66</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>166</sup>Ta</th> <td>165.95051(3)</td> <td>34.4(5) s</td> <td>ß<sup>+</sup> to <sup>166</sup>Hf</td> <td>(2)+</td> <td>N/A</td> <td>1305.74</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>167</sup>Ta</th> <td>166.94809(3)</td> <td>1.33(7) min</td> <td>ß<sup>+</sup> to <sup>167</sup>Hf</td> <td>(3/2+)</td> <td>N/A</td> <td>1323.13</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>168</sup>Ta</th> <td>167.94805(3)</td> <td>2.0(1) min</td> <td>ß<sup>+</sup> to <sup>168</sup>Hf</td> <td>(2-,3+)</td> <td>N/A</td> <td>1331.21</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>169</sup>Ta</th> <td>168.94601(3)</td> <td>4.9(4) min</td> <td>ß<sup>+</sup> to <sup>169</sup>Hf</td> <td>(5/2+)</td> <td>N/A</td> <td>1339.29</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>170</sup>Ta</th> <td>169.94618(3)</td> <td>6.76(6) min</td> <td>ß<sup>+</sup> to <sup>170</sup>Hf</td> <td>(3)(+#)</td> <td>N/A</td> <td>1347.37</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>171</sup>Ta</th> <td>170.94448(3)</td> <td>23.3(3) min</td> <td>ß<sup>+</sup> to <sup>171</sup>Hf</td> <td>(5/2-)</td> <td>N/A</td> <td>1355.45</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>172</sup>Ta</th> <td>171.94490(3)</td> <td>36.8(3) min</td> <td>ß<sup>+</sup> to <sup>172</sup>Hf</td> <td>(3+)</td> <td>N/A</td> <td>1363.52</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>173</sup>Ta</th> <td>172.94375(3)</td> <td>3.14(13) h</td> <td>ß<sup>+</sup> to <sup>173</sup>Hf</td> <td>5/2-</td> <td>N/A</td> <td>1371.6</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>174</sup>Ta</th> <td>173.94445(3)</td> <td>1.14(8) h</td> <td>ß<sup>+</sup> to <sup>174</sup>Hf</td> <td>3+</td> <td>N/A</td> <td>1379.68</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>175</sup>Ta</th> <td>174.94374(3)</td> <td>10.5(2) h</td> <td>ß<sup>+</sup> to <sup>175</sup>Hf</td> <td>7/2+</td> <td>N/A</td> <td>1387.76</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>176</sup>Ta</th> <td>175.94486(3)</td> <td>8.09(5) h</td> <td>ß<sup>+</sup> to <sup>176</sup>Hf</td> <td>(1)-</td> <td>N/A</td> <td>1395.84</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>177</sup>Ta</th> <td>176.944472(4)</td> <td>56.56(6) h</td> <td>EC to <sup>177</sup>Hf</td> <td>7/2+</td> <td>2.25</td> <td>1403.92</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>178</sup>Ta</th> <td>177.945778(16)</td> <td>9.31(3) min</td> <td>EC to <sup>178</sup>Hf</td> <td>1+</td> <td>2.74</td> <td>1412</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>179</sup>Ta</th> <td>178.9459295(23)</td> <td>1.82(3) y</td> <td>EC to <sup>179</sup>Hf</td> <td>7/2+</td> <td>N/A</td> <td>1420.08</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>180</sup>Ta</th> <td>179.947462 (4)</td> <td>Observationally Stable</td> <td>-</td> <td>9-</td> <td>N/A</td> <td>1428.15</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>180m</sup>Ta</th> <td>179.9474648(24)</td> <td>8.152(6) h</td> <td>EC to <sup>180</sup>Hf; ß<sup>-</sup> to <sup>180</sup>W</td> <td>1+</td> <td>N/A</td> <td>1444.661743</td> <td>0.012</td> </tr> <tr> <th scope="row"> <sup>181</sup>Ta</th> <td>180.9479958(19)</td> <td>Observationally Stable</td> <td>-</td> <td>7/2+</td> <td>2.371</td> <td>1436.23</td> <td>99.988</td> </tr> <tr> <th scope="row"> <sup>182</sup>Ta</th> <td>181.9501518(19)</td> <td>114.43(3) d</td> <td>ß<sup>-</sup> to <sup>182</sup>W</td> <td>3-</td> <td>3.02</td> <td>1435</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>183</sup>Ta</th> <td>182.9513726(19)</td> <td>5.1(1) d</td> <td>ß<sup>-</sup> to <sup>183</sup>W</td> <td>7/2+</td> <td>2.36</td> <td>1443.07</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>184</sup>Ta</th> <td>183.954008(28)</td> <td>8.7(1) h</td> <td>ß<sup>-</sup> to <sup>184</sup>W</td> <td>(5-)</td> <td>N/A</td> <td>1451.15</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>185</sup>Ta</th> <td>184.955559(15)</td> <td>49.4(15) min</td> <td>ß<sup>-</sup> to <sup>185</sup>W</td> <td>(7/2+)#</td> <td>N/A</td> <td>1459.23</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>186</sup>Ta</th> <td>185.95855(6)</td> <td>10.5(3) min</td> <td>ß<sup>-</sup> to <sup>186</sup>W</td> <td>(2-,3-)</td> <td>N/A</td> <td>1467.31</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>187</sup>Ta</th> <td>186.96053(21)#</td> <td>2# min [>300 ns]</td> <td>ß<sup>-</sup> to <sup>187</sup>W</td> <td>7/2+#</td> <td>N/A</td> <td>1466.07</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>188</sup>Ta</th> <td>187.96370(21)#</td> <td>20# s [>300 ns]</td> <td>ß<sup>-</sup> to <sup>188</sup>W</td> <td>N/A</td> <td>N/A</td> <td>1474.15</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>189</sup>Ta</th> <td>188.96583(32)#</td> <td>3# s [>300 ns]</td> <td>Unknown</td> <td>7/2+#</td> <td>N/A</td> <td>1482.23</td> <td>-</td> </tr> <tr> <th scope="row"> <sup>190</sup>Ta</th> <td>189.96923(43)#</td> <td>0.3# s</td> <td>Unknown</td> <td>N/A</td> <td>N/A</td> <td>1490.31</td> <td>-</td> </tr> </table> </div> </div> </div> <!-- InstanceEndEditable --> </div> </div> </div> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script src="https://www.americanelements.com/css/bootstrap/js/bootstrap.js"></script> <script src="https://www.americanelements.com/css/slippry.min.js"></script> <div class="scrollup">^</div> </div> <script> $(document).ready(function(){ $(window).scroll(function () { if ($(this).scrollTop() > 350) { $('.scrollup').fadeIn(500); } else { $('.scrollup').fadeOut(); } }); $('.scrollup').click(function () { $("html, body").animate({ scrollTop: 0 }, 400); return false; }); $(window).scroll(function() { clearTimeout($.data(this, 'scrollTimer')); $.data(this, 'scrollTimer', setTimeout(function() { $('.scrollup').fadeOut(); }, 600)); }); }); </script> <script> jQuery(document).ready(function(){ jQuery('.bxslider').slippry({ autoDelay: '0', pause:"5000", autoHover: false, transition: 'horizontal', adaptiveHeight: 'false' }); }); </script> <div class="sponsored-conference"> <a href="https://events.techconnect.org/DTCFall/" aria-label="logo" title="Defense TechConnect Innovation Summit"><div class="sponsored-conference-graphic"></div></a> <div class="sponsored-conference-text"> <div class="sponsored-conference-text"> Please join us and our customers and co-sponsors Lockheed Martin & Northrop Grumman at the <a href="https://events.techconnect.org/DTCFall/">Defense TechConnect Innovation Summit</a> in Austin, Texas on December 3, 2024. </div> </div> <div id="footer"> Periodic table of the elements, materials science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.S. Registered Trademark. © 1997-2024 American Elements. All rights reserved.</div> </body> <!-- InstanceEnd --></html>