Rhodium | AMERICAN ELEMENTS®

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class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/be.html" class="tbm-link level-3"> Beryllium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/bi.html" class="tbm-link level-3"> Bismuth <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/bb.html" class="tbm-link level-3"> Boron <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/bromine.html" class="tbm-link level-3"> Bromine <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/cd.html" class="tbm-link level-3"> Cadmium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ca.html" class="tbm-link level-3"> Calcium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/cc.html" class="tbm-link level-3"> Carbon <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ce.html" class="tbm-link level-3"> Cerium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/cs.html" class="tbm-link level-3"> Cesium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/chlorine.html" class="tbm-link level-3"> Chlorine <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/cr.html" class="tbm-link level-3"> Chromium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/co.html" class="tbm-link level-3"> Cobalt <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/cu.html" class="tbm-link level-3"> Copper <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/dy.html" class="tbm-link level-3"> Dysprosium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/er.html" class="tbm-link level-3"> Erbium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/eu.html" class="tbm-link level-3"> Europium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/fluorine.html" class="tbm-link level-3"> Fluorine <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/gd.html" class="tbm-link level-3"> Gadolinium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ga.html" class="tbm-link level-3"> Gallium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ge.html" class="tbm-link level-3"> Germanium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/au.htm" class="tbm-link level-3"> Gold <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/hf.html" class="tbm-link level-3"> Hafnium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ho.html" class="tbm-link level-3"> Holmium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/in.html" class="tbm-link level-3"> Indium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ii.htm" class="tbm-link level-3"> Iodine <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ir.html" class="tbm-link level-3"> Iridium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/fe.html" class="tbm-link level-3"> Iron <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/la.html" class="tbm-link level-3"> Lanthanum <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/pb.html" class="tbm-link level-3"> Lead <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/li.html" class="tbm-link level-3"> Lithium <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3 menu-item-bold" aria-level="3" > <div class="tbm-link-container"> <a href="/products-by-element" class="tbm-link level-3"> More… <span class="tbm-caption">Array</span> </a> </div> </li> </ul> </div> </div> </div> </div> </li> <li class="tbm-item level-2 tbm-group" aria-level="2" > <div class="tbm-link-container"> <span class="tbm-link level-2 no-link tbm-group-title" tabindex="0" aria-expanded="false"> Products by Form <span class="tbm-caption">Array</span> </span> </div> <div class="tbm-group-container tbm-item-child" role="list"> <div class="tbm-row"> <div class="tbm-column span12"> <div class="tbm-column-inner"> <ul class="tbm-subnav level-2 items-18" role="list"> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/2d-materials" class="tbm-link level-3"> 2D Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/alloys.html" class="tbm-link level-3"> Alloys <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/alloys.html" class="tbm-link level-3"> Alloy Forms <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ceramic-fibers" class="tbm-link level-3"> Ceramic Fibers <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/ceramics.html" class="tbm-link level-3"> Ceramics <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/chemicals.html" class="tbm-link level-3"> Chemicals & Salts <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/foams.html" class="tbm-link level-3"> Foams <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/Ultra_high_purity_metals_powders.htm" class="tbm-link level-3"> High Purity Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/isotopes.html" class="tbm-link level-3"> Isotopes <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/metals.html" class="tbm-link level-3"> Metal Forms <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/mxenes" class="tbm-link level-3"> Mxenes <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/nanomaterials-nanoparticles-nanotechnology.html" class="tbm-link level-3"> Nanomaterials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/organometallics.html" class="tbm-link level-3"> Organometallics <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/oxides.html" class="tbm-link level-3"> Oxides <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/metals.html" class="tbm-link level-3"> Pure Metals <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/rare-earths.html" class="tbm-link level-3"> Rare Earths <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/semiconductors.html" class="tbm-link level-3"> Semiconductors <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/solutions" class="tbm-link level-3"> Solutions <span class="tbm-caption">Array</span> </a> </div> </li> </ul> </div> </div> </div> </div> </li> <li class="tbm-item level-2 tbm-group" aria-level="2" > <div class="tbm-link-container"> <span class="tbm-link level-2 no-link tbm-group-title" tabindex="0" aria-expanded="false"> Products by Application <span class="tbm-caption">Array</span> </span> </div> <div class="tbm-group-container tbm-item-child" role="list"> <div class="tbm-row"> <div class="tbm-column span12"> <div class="tbm-column-inner"> <ul class="tbm-subnav level-2 items-30" role="list"> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/additive-manufacturing-3d-printing" class="tbm-link level-3"> 3D Printing <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/additive-manufacturing-3d-printing" class="tbm-link level-3"> Additive Manufacturing <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/green-technology-alternative-energy.html" class="tbm-link level-3"> Alternative Energy <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/Battery-Technology.html" class="tbm-link level-3"> Battery Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/Bio-Medical.html" class="tbm-link level-3"> Biomaterials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/catalysts" class="tbm-link level-3"> Catalysts <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/dental-materials.html" class="tbm-link level-3"> Dental Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/electronics-materials.html" class="tbm-link level-3"> Electronics Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/fuel-cell-materials.html" class="tbm-link level-3"> Fuel Cell Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/fusion-energy" class="tbm-link level-3"> Fusion Energy <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/optical-materials.html" class="tbm-link level-3"> Glass Manufacturing <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/green-technology-alternative-energy.html" class="tbm-link level-3"> Green Technology <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/Hydrogen-Storage.html" class="tbm-link level-3"> Hydrogen Storage <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/optical-materials.html" class="tbm-link level-3"> Laser Crystals <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/life-science-organic-chemistry" class="tbm-link level-3"> Life Sciences <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/metallurgy.html" class="tbm-link level-3"> Metallurgy <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/nanomaterials-nanoparticles-nanotechnology.html" class="tbm-link level-3"> Nanomaterials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/nanomaterials-nanoparticles-nanotechnology.html" class="tbm-link level-3"> Nanotechnology <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/optical-materials.html" class="tbm-link level-3"> Optical Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/solar-energy-materials.html" class="tbm-link level-3"> Photovoltaics <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/pigments-coatings.html" class="tbm-link level-3"> Pigments & Coatings <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/metal-plating" class="tbm-link level-3"> Plating <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/research-and-development.html" class="tbm-link level-3"> Research & Development <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/solar-energy-materials.html" class="tbm-link level-3"> Solar Energy <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/space-industry.html" class="tbm-link level-3"> Space Technology <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/sputtering-targets.html" class="tbm-link level-3"> Sputtering Targets <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/Battery-Technology.html" class="tbm-link level-3"> Supercapacitor Materials <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/thin-film-evaporation-materials.html" class="tbm-link level-3"> Thin Film Deposition <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/water-treatment-chemicals.html" class="tbm-link level-3"> Water Treatment <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/weather-modification" class="tbm-link level-3"> Weather Modification <span class="tbm-caption">Array</span> </a> </div> </li> </ul> </div> </div> </div> </div> </li> <li class="tbm-item level-2 tbm-group" aria-level="2" > <div class="tbm-link-container"> <span class="tbm-link level-2 no-link tbm-group-title" tabindex="0" aria-expanded="false"> Life Science Products <span class="tbm-caption">Array</span> </span> </div> <div class="tbm-group-container tbm-item-child" role="list"> <div class="tbm-row"> <div class="tbm-column span12"> <div class="tbm-column-inner"> <ul class="tbm-subnav level-2 items-37" role="list"> <li class="tbm-item level-3 menu-item-bold" aria-level="3" > <div class="tbm-link-container"> <a href="/life-science-organic-chemistry" class="tbm-link level-3"> All Life Science <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/alcohols" class="tbm-link level-3"> Alcohols <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/aldehydes" class="tbm-link level-3"> Aldehydes <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/alkanes" class="tbm-link level-3"> Alkanes <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/amides" class="tbm-link level-3"> Amides <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/amines" class="tbm-link level-3"> Amines <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/amino-acids-derivatives" class="tbm-link level-3"> Amino Acids & Derivatives <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/aromatics" class="tbm-link level-3"> Aromatics <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/aryls" class="tbm-link level-3"> Aryls <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/azetidines" class="tbm-link level-3"> Azetidines <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/benzimidazoles" class="tbm-link level-3"> Benzimidazoles <span class="tbm-caption">Array</span> </a> </div> </li> <li class="tbm-item level-3" aria-level="3" > <div class="tbm-link-container"> <a href="/benzothiophenes" class="tbm-link level-3"> Benziothiophenes 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role="banner"> <div class="section layout-container clearfix"> </div> </header> <div class="highlighted"> <aside class="layout-container section clearfix" role="complementary"> <div> <div data-drupal-messages-fallback class="hidden"></div> </div> </aside> </div> <div id="main-wrapper" class="page-layout-main-wrapper layout-container clearfix"> <div id="main" class="layout-main clearfix container-fluid"> <main id="content" class="column main-content" role="main"> <section class="section"> <a id="main-content" tabindex="-1"></a> <div> <div id="block-ae-theme-gratis-ae-subtheme-system-main"> <article data-history-node-id="358401" class="elements"> <div class="element-main"> <div class="elements__banner "> <img src=/images/2024-08/rhodium-banner.jpg /> </div> <h1 class="elements__banner__title"> <span>Rhodium</span> </h1> <div class="elements__banner__properties"> <div class="elements__banner__properties--number">45</div> <div class="elements__banner__properties--symbol">Rh</div> <div class="elements__banner__properties--mass">102.9055</div> </div> </div> <div class="elements__content"> <div class="ae-tabs"> <div class="ae-tabs-headers"> <a href="#about" class="ae-tabs-headers--header" data-tab="tab-about">About <div class="views-element-container"><div class="js-view-dom-id-a879711d966551bceeb105ab346b458e020be2baadf6f23ab98af134783171a0"> <div class="all-items"> <div>Rhodium</div> </div> </div> </div> </a> <a href="#products" class="ae-tabs-headers--header" data-tab="tab-products">Products</a> <a href="#properties" class="ae-tabs-headers--header active" data-tab="tab-properties">Properties</a> <a href="#properties-and-products" class="ae-tabs-headers--header" data-tab="tab-properties-and-products">Properties & Products</a> <a href="#safety" class="ae-tabs-headers--header" data-tab="tab-safety">Safety</a> <a href="#isotopes" class="ae-tabs-headers--header" data-tab="tab-isotopes">Isotopes</a> </div> <div class="ae-tabs-content"> <div id="tab-about" class="tab-body paragraph paragraph--type--about paragraph--view-mode--default"> <div class="paragraph text-with-title paragraph--type--text-with-title paragraph--view-mode--default"> <h2 class="text-with-title__title">About Rhodium</h2> <div class="text-with-title__body"><div class="tab-pane active" id="about" role="tabpanel" aria-labelledby="tab1"><img class="image-left" src="https://www.americanelements.com/images_graphics/element-bohr-models/rhodium-bohr-model.jpg" alt="Rhodium Bohr" width="200" height="200"><p>Rhodium is a hard, durable <a href="https://www.americanelements.com/rhodium-metal-7440-16-6">metal</a> with a shiny silver appearance and high resistance to corrosion. It is one of the rarest metals in the Earth’s crust, a factor that, along with its value for many applications, ensures its extremely high cost. The majority of new rhodium produced is used to produce three-way <a href="https://www.americanelements.com/automotive.html">catalytic converters</a>, where it is more efficient than other platinum group elements at reducing nitrogen oxides. Additionally, rhodium-based <a href="https://www.americanelements.com/catalysts">catalysts</a> are widely used in industrial processes and other organic chemistry applications.</p><p>The remaining rhodium is used as an <a href="https://www.americanelements.com/metallurgy.html">alloying agent</a> that improves the corrosion resistance and increases the hardness of <a href="https://www.americanelements.com/platinum-metal-7440-06-4">platinum</a> and <a href="https://www.americanelements.com/palladium-metal-7440-05-3">palladium</a>, or used ornamentally. Rhodium-containing alloys are used in spark plugs, advanced laboratory equipment, and in thermocouples. In <a href="https://www.americanelements.com/jewelry-fashion.html">jewelry manufacturing</a>, extremely thin layers of the precious metal are electroplated onto white <a href="https://www.americanelements.com/gold-metal-7440-57-5">gold</a> or platinum to give a reflective white surface, a process known as “rhodium flashing”.</p><p><a href="https://www.americanelements.com/pt.htm">Platinum</a> first came to Europe as platina, grey metallic crumbs that were unusable to metalworkers in their native form. Initially, few people could convert platina to workable platinum, and the process involved was a carefully guarded secret. The problem with early platina processing had been that the final material produced did not seem to have consistent properties--a problem solved when it was recognized that platina actually included several different metals. William Hyde Wollaston, an English chemist, was the first to isolate rhodium from platina samples and named the element based on the rose-red color of one of its compounds.</p><p>Like other platinum group metals, rhodium is typically obtained for commercial use as a byproduct from <a href="https://www.americanelements.com/ni.html">nickel</a> and <a href="https://www.americanelements.com/cu.html">copper</a> mining and processing, but can also be obtained from ores rich in platinum and alluvial deposits. Along with <a href="https://www.americanelements.com/ru.html">ruthenium</a> and <a href="https://www.americanelements.com/pd.html">palladium</a>, rhodium is a decomposition product of <a href="https://www.americanelements.com/uu.htm">uranium</a> and could theoretically be recovered from spent nuclear fuel, but the problems inherent in working with radioactive materials make this an impractical source for the rare element.</p></div></div> </div> </div> <div id="tab-products" class="tab-body paragraph paragraph--type--product paragraph--view-mode--default"> <div class="multiple-accordions paragraph paragraph--type--multiple-accordions paragraph--view-mode--default"> <h2 class="multiple-accordions__title">Products</h2> <div class="multiple-accordions__cta"></div> <div class="multiple-accordions__accordions"><div class="accordion-wrapper"> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345057">Compounds</h4> <div class="custom-accordion-body accordion-default-close accordion--345057"><div class="panel-body collapse row" id="compound-products"><ul class="grid grid3 no-dot"><li class="product"><a href="https://www.americanelements.com/ammonium-aquopentachlororhodate-iii-63771-33-5">Ammonium Aquopentachlororhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/ammonium-hexachlororhodate-iii-15336-18-2">Ammonium Hexachlororhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/ammonium-hexachlororhodate-iii-hydrate-15336-18-2">Ammonium Hexachlororhodate(III) Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/diammonium-sodium-hexanitrorhodate-iii-14640-47-2">Diammonium Sodium Hexanitrorhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/hexaamminerhodium-iii-chloride-13820-96-7">Hexaamminerhodium(III) Chloride</a></li><li class="product"><a href="https://www.americanelements.com/lithium-tri-oxorhodate">Lithium Tri-oxorhodate</a></li><li class="product"><a href="https://www.americanelements.com/nishimuras-catalyst-rhodium-platinum-oxide">Nishimura's Catalyst</a></li><li class="product"><a href="https://www.americanelements.com/pentaamminechlororhodium-iii-dichloride-13820-95-6">Pentaamminechlororhodium(III) Dichloride</a></li><li class="product"><a href="https://www.americanelements.com/potassium-hexachlororhodate-iii-13845-07-3">Potassium Hexachlororhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/potassium-pentachlororhodate-iii-65980-75-8">Potassium Pentachlororhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/potassium-pentachlororhodate-iii-hydrate">Potassium Pentachlororhodate(III) Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/potassium-hexanitrorhodate-iii-17712-66-2">Potassium Hexanitrorhodate(III)</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-acetate-26105-49-7">Rhodium(III) Acetate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-ii-acetate-dimer-15956-28-2">Rhodium(II) Acetate Dimer</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-acetate-26105-49-7">Rhodium(II) Acetate Dimer Dihydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-acetate-solution-15956-28-2">Rhodium Acetate Solution</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-bromide-15608-29-4">Rhodium Bromide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-bromide-hydrate-123333-87-9">Rhodium Bromide Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-carbide-12127-42-3">Rhodium Carbide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-chloride-anhydrous-10049-07-7">Rhodium Chloride</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-chloride-hydrate-20765-98-4">Rhodium(III) Chloride Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-chloride-solution-20765-98-4">Rhodium Chloride Solution</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-chloride-trihydrate-13569-65-8">Rhodium(III) Chloride Trihydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-fluoride-60804-25-3">Rhodium Fluoride</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-hydroxide-21656-02-0">Rhodium Hydroxide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-iodide-15492-38-3">Rhodium Iodide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-iodide-hydrate-314071-45-9">Rhodium(III) Iodide Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-nitrate-10139-58-9">Rhodium Nitrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-nitrate-dihydrate-13465-43-5">Rhodium Nitrate Dihydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-nitrate-solution-13465-43-5">Rhodium Nitrate Solution</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-oxide-12036-35-0">Rhodium Oxide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iv-oxide-12137-27-8">Rhodium(IV) Oxide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iv-oxide-dihydrate-75748-03-7">Rhodium(IV) Oxide Dihydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-hydrate-123542-79-0">Rhodium Oxide Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-oxide-pentahydrate-39373-27-8">Rhodium(III) Oxide Pentahydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-phosphate-solution-67859-71-6">Rhodium Phosphate Solution</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-sodium-chloride-dihydrate-14972-02-2">Rhodium(III) Sodium Chloride Dihydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sulfate-10489-46-0">Rhodium Sulfate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sulfate-solution-10489-46-0">Rhodium Sulfate Solution</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-iii-sulfate-tetrahydrate-15274-78-9">Rhodium(III) Sulfate Tetrahydrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-trichloride-hydrate-20765-98-4">Rhodium Trichloride Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/sodium-hexabromorhodate-iii-hydrate-32572-90-0">Sodium Hexabromorhodate(III) Hydrate</a></li><li class="product"><a href="https://www.americanelements.com/sodium-hexachlororhodate-iii-14972-70-4">Sodium Hexachlororhodate(III) Dodecahydrate</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345058">Metallic Forms</h4> <div class="custom-accordion-body accordion-default-close accordion--345058"><div class="panel-body collapse row" id="metallic-products"><ul class="grid grid3 no-dot"><li class="product"><a href="https://www.americanelements.com/rhodium-balls-7440-16-6">Rhodium Balls</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-band-7440-16-6">Rhodium Bands</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-bars-7440-16-6">Rhodium Bars</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-black-7440-16-6">Rhodium Black</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-blocks-7440-16-6">Rhodium Blocks</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-chunk-7440-16-6">Rhodium Chunk</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-coil-7440-16-6">Rhodium Coil</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-concentrate-7440-16-6">Rhodium Concentrate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-crucibles-7440-16-6">Rhodium Crucibles</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-cubes-7440-16-6">Rhodium Cubes</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-cylinder-7440-16-6">Rhodium Cylinder</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-disc-7440-16-6">Rhodium Disc</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-flake-7440-16-6">Rhodium Flake</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-flange-7440-16-6">Rhodium Flanges</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-foil-7440-16-6">Rhodium Foil</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-granules-7440-16-6">Rhodium Granules</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-ingot-7440-16-6">Rhodium Ingot</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-lump-7440-16-6">Rhodium Lump</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-mesh-7440-16-6">Rhodium Mesh</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-metal-7440-16-6">Rhodium Metal</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-microfoil-7440-16-6">Rhodium Microfoil</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-microleaf-7440-16-6">Rhodium Microleaf</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-on-alumina-7440-16-6">Rhodium on Alumina</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-on-barium-sulfate-7440-16-6">Rhodium on Barium Sulfate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-on-calcium-carbonate-7440-16-6">Rhodium on Calcium Carbonate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-on-carbon-7440-16-6">Rhodium on Carbon</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-on-silica-7440-16-6">Rhodium on Silica</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-particles-7440-16-6">Rhodium Particles</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-parts-7440-16-6">Rhodium Parts</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-pellets-7440-16-6">Rhodium Pellets</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-pieces-7440-16-6">Rhodium Pieces</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-plate-7440-16-6">Rhodium Plate</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-powder-7440-16-6">Rhodium Powder</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-puck-7440-16-6">Rhodium Puck</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-ribbon-7440-16-6">Rhodium Ribbon</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-ring-7440-16-6">Rhodium Rings</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-rod-7440-16-6">Rhodium Rod</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-samples-7440-16-6">Rhodium Samples</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-shavings-7440-16-6">Rhodium Shaving</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sheet-7440-16-6">Rhodium Sheets</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-shot-7440-16-6">Rhodium Shot</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-single-crystal-7440-16-6">Rhodium Single Crystal</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sleeves-7440-16-6">Rhodium Sleeves</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-slugs-7440-16-6">Rhodium Slugs</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-specimen-7440-16-6">Rhodium Specimens</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-spheres-7440-16-6">Rhodium Spheres</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sponges-7440-16-6">Rhodium Sponge</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-spring-7440-16-6">Rhodium Spring</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-strip-7440-16-6">Rhodium Strip</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-tape-7440-16-6">Rhodium Tape</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-tube-7440-16-6">Rhodium Tube</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-wafer-7440-16-6">Rhodium Wafer</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-wedding-rings-7440-16-6">Rhodium Wedding Rings</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-wire-7440-16-6">Rhodium Wire</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-nanoscale-foil-7440-16-6">Ultra Thin Rhodium Foil</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345059">Alloys</h4> <div class="custom-accordion-body accordion-default-close accordion--345059"><div class="panel-body collapse row" id="alloy-products"><ul class="grid grid3 no-dot"><li class="product"><a href="https://www.americanelements.com/cobalt-rhodium-zirconium-alloy">Cobalt Rhodium Zirconium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/iron-nickel-rhodium-alloy">Iron Nickel Rhodium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/iron-rhodium-alloy">Iron Rhodium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/manganese-rhodium">Manganese Rhodium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/molybdenum-rhodium-alloy">Molybdenum Rhodium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/platinum-gold-rhodium-crucible">Platinum Gold Rhodium Crucible</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-alloy-11107-71-4">Platinum Rhodium Alloy</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-crucible-11107-71-4">Platinum Rhodium Crucible</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-foil-11107-71-4">Platinum Rhodium Foil</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-gauze-11107-71-4">Platinum Rhodium Gauze</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-palladium-gauze">Platinum Rhodium Palladium Gauze</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-powder-11107-71-4">Platinum Rhodium Powder</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-wire-11107-71-4">Platinum Rhodium Wire</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345060">Oxide Forms</h4> <div class="custom-accordion-body accordion-default-close accordion--345060"><div class="panel-body collapse row" id="oxide-products"><ul class="grid grid3 no-dot"><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-nanoparticles-nanopowder-12036-35-0">Rhodium Oxide Nanoparticles</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-on-alumina">Rhodium Oxide on Alumina</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-particles-12036-35-0">Rhodium Oxide Particles</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-pellets-12036-35-0">Rhodium Oxide Pellets</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-pieces-12036-35-0">Rhodium Oxide Pieces</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-powder-12036-35-0">Rhodium Oxide Powder</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-rotatable-sputtering-target-12036-35-0">Rhodium Oxide Rotatable Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-shot-12036-35-0">Rhodium Oxide Shot</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-sputtering-target-12036-35-0">Rhodium Oxide Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-tablets-12036-35-0">Rhodium Oxide Tablets</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345061">Organometallics</h4> <div class="custom-accordion-body accordion-default-close accordion--345061"><div class="panel-body collapse row" id="organometallic-products"><ul class="grid grid2 no-dot"><li class="product"><a href="https://www.americanelements.com/%CE%BC-dichlorotetraethylene-dirhodium-i-12081-16-2">µ-Dichlorotetraethylene Dirhodium(I)</a></li><li class="product"><a href="https://www.americanelements.com/1-1-bis-di-i-propylphosphino-ferrocene-1-5-cyclooctadiene-rhodium-i-tetrafluoroborate-157772-65-1">1,1'-Bis(di-i-propylphosphino)ferrocene(1,5-cyclooctadiene)rhodium(I) Tetrafluoroborate</a></li><li class="product"><a href="https://www.americanelements.com/1-2-bis-2r-5r-2-5-diethylphospholano-benzene-1-5-cyclooctadiene-rhodium-i-tetrafluoroborate-228121-39-9">1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene(1,5-cyclooctadiene)rhodium(I) Tetrafluoroborate</a></li><li class="product"><a href="https://www.americanelements.com/1-2-bis-2r-5r-2-5-diethylphospholano-benzene-1-5-cyclooctadiene-rhodium-i-trifluoromethanesulfonate-136705-77-6">1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene(1,5-cyclooctadiene)rhodium(I) Trifluoromethanesulfonate</a></li><li class="product"><a href="https://www.americanelements.com/1-2-bis-2r-5r-2-5-diisopropylphospholano-benzene-1-5-cyclooctadiene-rhodium-i-tetrafluoroborate-569650-64-2">1,2-Bis[(2R,5R)-2,5-diisopropylphospholano]benzene(1,5-cyclooctadiene)rhodium(I) Tetrafluoroborate</a></li><li class="product"><a href="https://www.americanelements.com/1-2-bis-2r-5r-2-5-dimethylphospholano-benzene-cyclooctadiene-rhodium-i-tetrafluoroborate-210057-23-1">1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene (cyclooctadiene)rhodium(I) Tetrafluoroborate</a></li><li class="product"><a href="https://www.americanelements.com/1-2-bis-2r-5r-2-5-dimethylphospholano-benzene-cyclooctadiene-rhodium-i-trifluoromethanesulfonate-187682-63-9">1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene(cyclooctadiene)rhodium(I) Trifluoromethanesulfonate</a></li><li class="product"><a 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Nanoparticle Dispersion</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-nanoparticles-nanopowder-12036-35-0">Rhodium Oxide Nanoparticles</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345063">Semiconductor & Optical</h4> <div class="custom-accordion-body accordion-default-close accordion--345063"><div class="panel-body collapse row" id="semiconductor-optical-products"><ul class="grid grid2 no-dot"><li class="product"><a href="https://www.americanelements.com/rhodium-phosphide">Rhodium Phosphide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-selenide">Rhodium Selenide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sulfide-12067-06-0">Rhodium Sulfide</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-telluride-12038-80-1">Rhodium Telluride</a></li></ul></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345064">Sputtering Targets</h4> <div class="custom-accordion-body accordion-default-close accordion--345064"><div class="panel-body collapse row" id="sputtering-target-products"><ul class="grid grid3 no-dot"><li class="product"><a href="https://www.americanelements.com/iron-rhodium-alloy-sputtering-target-12062-95-2">Iron Rhodium Alloy Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/platinum-rhodium-alloy-sputtering-target-11107-71-4">Platinum Rhodium Alloy Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-rotatable-sputtering-target-12036-35-0">Rhodium Oxide Rotatable Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-oxide-sputtering-target-12036-35-0">Rhodium Oxide Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-phosphide-sputtering-target">Rhodium Phosphide Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-rotatable-sputtering-target-7440-16-6">Rhodium Rotatable Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-selenide-sputtering-target">Rhodium Selenide Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-sputtering-target-7440-16-6">Rhodium Sputtering Target</a></li><li class="product"><a href="https://www.americanelements.com/rhodium-telluride-sputtering-target-12038-80-1">Rhodium Telluride Sputtering Target</a></li></ul></div></div> </div> <div class="ae-accordion-open-close-all-btns"> <button class="ae-accordion-open-close-all-btns__open">+ OPEN ALL</button> <button class="ae-accordion-open-close-all-btns__close">- CLOSE ALL</button> </div> </div></div> </div> <div class="paragraph paragraph--type--text paragraph--view-mode--default"> <div id="products-intro"><p>Rhodium is <a href="https://www.americanelements.com/alloys.html">alloyed</a> with <a href="https://www.americanelements.com/pt.htm">platinum</a> and <a href="https://www.americanelements.com/pd.html">palladium</a> in electrodes for spark plugs, advanced laboratory equipment and in thermocouples. Rhodium compounds also have catalytic uses in automotive catalytic converters. <a href="https://www.americanelements.com/rhodium-oxide-powder-12036-35-0"><img class="image-left" src="https://www.americanelements.com/images_graphics/rhodium-oxide-powder.png" alt="High Purity (99.999%) Rhodium Oxide (Rh2O3) Powder" width="112" height="120"></a>Rhodium is used as a plating metal in jewelry production to enhance the whiteness of white <a href="https://www.americanelements.com/au.htm">gold</a> and <a href="https://www.americanelements.com/pt.html">platinum</a>. Rhodium is available as <a href="https://www.americanelements.com/rhodium-metal-7440-16-6">metal</a> and in compound forms with purities ranging from 99% to 99.999% (ACS grade to <a href="https://www.americanelements.com/Ultra_high_purity_metals_powders.htm">ultra-high purity</a>). <a href="https://www.americanelements.com/rhodium-sputtering-target-7440-16-6"><img class="image-right" src="https://www.americanelements.com/images_graphics/rhodium-sputtering-target.png" alt="High Purity (99.999%) Rhodium (Rh) Sputtering Target" width="95" height="111"></a>Elemental or metallic forms include <a href="https://www.americanelements.com/rhodium-pellets-7440-16-6">pellets</a>, <a href="https://www.americanelements.com/rhodium-rod-7440-16-6">rod</a>, <a href="https://www.americanelements.com/rhodium-wire-7440-16-6">wire</a> and <a href="https://www.americanelements.com/rhodium-granules-7440-16-6">granules</a> for evaporation source material purposes. Rhodium <a href="https://www.americanelements.com/nanomaterials-nanoparticles-nanotechnology.html">nanoparticles and nanopowders</a> provide ultra-high surface area. <a href="https://www.americanelements.com/oxides.html">Rhodium oxides</a> is an insoluble rhodium source available in <a href="https://www.americanelements.com/rhodium-oxide-powder-12036-35-0">powder</a> and dense <a href="https://www.americanelements.com/rhodium-oxide-pellets-12036-35-0">pellet</a> form for such uses as optical coating and thin film applications <a href="https://www.americanelements.com/Fluorides.html">Rhodium fluoride</a> is another insoluble form of for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Rhodium is also available in soluble forms including <a href="https://www.americanelements.com/rhodium-chloride-solution-20765-98-4">chlorides</a>, <a href="https://www.americanelements.com/rhodium-nitrate-solution-13465-43-5">nitrates</a> and <a href="https://www.americanelements.com/rhodium-acetate-solution-15956-28-2">acetates</a>. These compounds can be manufactured as <a href="https://www.americanelements.com/solutions">solutions</a> at specified stoichiometries.</p></div> </div> </div> <div id="tab-properties" class="tab-body paragraph paragraph--type--properties-element paragraph--view-mode--default"> <div class="paragraph text-with-title paragraph--type--text-with-title paragraph--view-mode--default"> <h2 class="text-with-title__title">Rhodium Properties</h2> <div class="text-with-title__body"><div class="tab-pane active" id="properties" role="tabpanel" aria-labelledby="tab3"><p><img class="image-left" src="https://www.americanelements.com/images_graphics/rhodium-block.png" alt="Rhodium(Rh) atomic and molecular weight, atomic number and elemental symbol" width="38" height="40"><strong>Rhodium</strong> is a Block D, Group 9, Period 5 element. <img class="image-right" src="https://www.americanelements.com/images_graphics/rhodium-bohr.jpg" alt="Rhodium Bohr Model" width="200" height="200">. Rhodium was first discovered by William Wollaston in 1803. The name rhodium originates from the Greek word 'Rhodon,' which means rose.</p></div></div> </div> <div class="two-columns-accordion paragraph paragraph--type--two-columns-accordions paragraph--view-mode--default"> <div class="two-columns-accordion__left"> <div class="multiple-accordions paragraph paragraph--type--multiple-accordions paragraph--view-mode--default"> <h2 class="multiple-accordions__title"></h2> <div class="multiple-accordions__cta"></div> <div class="multiple-accordions__accordions"><div class="accordion-wrapper"> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345069">General Properties</h4> <div class="custom-accordion-body accordion-default-close accordion--345069"><div class="panel-collapse collapse" id="general-properties"><table class="table properties-table"><tbody><tr><th id="symbol">Symbol:</th><td>Rh</td></tr><tr><th id="atomic-number">Atomic Number:</th><td>45</td></tr><tr><th id="atomic-weight">Atomic Weight:</th><td>102.9055</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>9, 5, d</td></tr><tr><th id="color">Color:</th><td>silvery white metallic/ silvery-white</td></tr><tr><th id="other-names">Other Names:</th><td>Rodio, Ródio</td></tr></tbody></table></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345070">Physical Properties</h4> <div class="custom-accordion-body accordion-default-close accordion--345070"><div class="panel-collapse collapse" id="physical-properties"><table class="properties-table table"><tbody><tr><th id="melting-point">Melting Point:</th><td>1964 °C, 3567 °F, 2237 K</td></tr><tr><th id="boiling-point">Boiling Point:</th><td>3695 °C, 6683 °F, 3968 K</td></tr><tr><th id="density">Density:</th><td>12.41 g·cm<sup>3</sup></td></tr><tr><th id="liquid-density">Liquid Density @ Melting Point:</th><td>10.7 g·cm<sup>3</sup></td></tr><tr><th id="density-20-degrees-C">Density @ 20°C:</th><td>12.4 g/cm<sup>3</sup></td></tr><tr><th id="solid-density">Density of Solid:</th><td>12450 kg·m<sup>3</sup></td></tr><tr><th id="specific-heat">Specific Heat:</th><td>0.24 (kJ/kg K)</td></tr><tr><th id="superconductivity-temperature">Superconductivity Temperature:</th><td>N/A</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>21.55</td></tr><tr><th id="vaporization-heat">Heat of Vaporization (kJ·mol<sup>-1</sup>):</th><td>494.34</td></tr><tr><th id="atomization-heat">Heat of Atomization (kJ·mol<sup>-1</sup>):</th><td>555.59</td></tr><tr><th id="thermal-conductivity">Thermal Conductivity:</th><td>150 W·m<sup>-1</sup>·K<sup>-1</sup></td></tr><tr><th id="thermal-expansion">Thermal Expansion:</th><td>(25 °C) 8.2 µm·m<sup>-1</sup>·K<sup>-1</sup></td></tr><tr><th id="electrical-resistivity">Electrical Resistivity:</th><td>(0 °C) 43.3 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>24.98 J·mol<sup>-1</sup>·K<sup>-1</sup></td></tr><tr><th id="youngs-modulus">Young's Modulus:</th><td>380 GPa</td></tr><tr><th id="shear-modulus">Shear Modulus:</th><td>150 GPa</td></tr><tr><th id="bulk-modulus">Bulk Modulus:</th><td>275 GPa</td></tr><tr><th id="poisson-ratio">Poisson Ratio:</th><td>0.26</td></tr><tr><th id="mohs-hardness">Mohs Hardness:</th><td>6</td></tr><tr><th id="vickers-hardness">Vickers Hardness:</th><td>1246 MPa</td></tr><tr><th id="brinell-hardness">Brinell Hardness:</th><td>1100 MPa</td></tr><tr><th id="speed-of-sound">Speed of Sound:</th><td>(20 °C) 4700 m·s<sup>-1</sup></td></tr><tr><th id="pauling-electronegativity">Pauling Electronegativity:</th><td>2.28</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>1.45</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>1.72</td></tr><tr><th id="reflectivity">Reflectivity (%):</th><td>84</td></tr><tr><th id="refractive-index">Refractive Index:</th><td>N/A</td></tr></tbody></table></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--345071">Chemical Properties</h4> <div class="custom-accordion-body accordion-default-close accordion--345071"><div class="panel-collapse collapse" id="chemical-properties"><table class="properties-table table"><tbody><tr><th id="electrons">Electrons:</th><td>45</td></tr><tr><th id="protons">Protons:</th><td>45</td></tr><tr><th id="neutrons">Neutrons:</th><td>58</td></tr><tr><th id="electron-configuration">Electron Configuration:</th><td>[Kr] 4d<sup>8</sup> 5s<sup>1</sup></td></tr><tr><th id="atomic-radius">Atomic Radius:</th><td>134 pm</td></tr><tr><th id="atomic-radius-non-bonded">Atomic Radius,<br>non-bonded (Å):</th><td>2.1</td></tr><tr><th id="covalent-radius">Covalent Radius:</th><td>142±7 pm</td></tr><tr><th id="covalent-radius-non-bonded">Covalent Radius (Å):</th><td>1.34</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>6, 5, 4, 3, 2, 1, -1 (amphoteric oxide)</td></tr><tr><th id="phase">Phase:</th><td>Solid</td></tr><tr><th id="crystal-structure">Crystal Structure:</th><td>face-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>109.665</td></tr><tr><th id="1-ionization">1<sup>st</sup> Ionization Energy:</th><td>719.68 kJ·mol<sup>-1</sup></td></tr><tr><th id="2-ionization">2<sup>nd</sup> Ionization Energy:</th><td>1744.47 kJ·mol<sup>-1</sup></td></tr><tr><th id="3-ionization">3<sup>rd</sup> Ionization Energy:</th><td>2996.86 kJ·mol<sup>-1</sup></td></tr></tbody></table></div></div> </div> <div class="ae-accordion-open-close-all-btns"> <button class="ae-accordion-open-close-all-btns__open">+ OPEN ALL</button> <button class="ae-accordion-open-close-all-btns__close">- CLOSE ALL</button> </div> </div></div> </div> </div> <div class="two-columns-accordion__right"> <div class="multiple-accordions paragraph paragraph--type--multiple-accordions paragraph--view-mode--default"> <h2 class="multiple-accordions__title"></h2> <div class="multiple-accordions__cta"></div> <div class="multiple-accordions__accordions"><div class="accordion-wrapper"> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--346625">Identifiers</h4> <div class="custom-accordion-body accordion-default-close accordion--346625"><div class="panel-collapse collapse" id="identifiers"><table class="table properties-table"><tbody><tr><th id="cas-number">CAS Number:</th><td>7440-16-6</td></tr><tr><th id="ec-number">EC Number:</th><td>231-125-0</td></tr><tr><th id="mdl-number">MDL Number:</th><td>MFCD00011201</td></tr><tr><th id="beilstein-number">Beilstein Number:</th><td>N/A</td></tr><tr><th id="smile-id">SMILES Identifier:</th><td>[Rh]</td></tr><tr><th id="inchi-id">InChI Identifier:</th><td>InChI=1S/Rh</td></tr><tr><th id="inchi-key">InChI Key:</th><td>MHOVAHRLVXNVSD-UHFFFAOYSA-N</td></tr><tr><th id="pubchem-cid">PubChem CID:</th><td>23948</td></tr><tr><th id="chemspider-id">ChemSpider ID:</th><td>22389</td></tr></tbody></table></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--346626">Abundance</h4> <div class="custom-accordion-body accordion-default-close accordion--346626"><div class="panel-collapse collapse" id="abundance"><table class="table properties-table"><tbody><tr><th class="abundance" id="earth-total">Earth - Total:</th><td>252 ppb </td></tr><tr><th class="abundance" id="mercury-total">Mercury - Total:</th><td>194 ppb</td></tr><tr><th class="abundance" id="venus-total">Venus - Total:</th><td>265 ppb</td></tr><tr><th class="abundance" id="abundance-earth-seawater-weight">Earth - Seawater (Oceans), ppb by weight:</th><td>N/A</td></tr><tr><th class="abundance" id="abundance-earth-seawater-atoms">Earth - Seawater (Oceans), ppb by atoms:</th><td>N/A</td></tr><tr><th class="abundance" id="abundance-earth-crust-weight">Earth -  Crust (Crustal Rocks), ppb by weight:</th><td>0.7</td></tr><tr><th class="abundance" id="abundance-earth-crust-atoms">Earth -  Crust (Crustal Rocks), ppb by atoms:</th><td>0.1</td></tr><tr><th class="abundance" id="abundance-sun-weight">Sun - Total, ppb by weight:</th><td>2</td></tr><tr><th class="abundance" id="abundance-sun-atoms">Sun - Total, ppb by atoms:</th><td>0.02</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>180</td></tr><tr><th class="abundance" id="abundance-meterorite-carbonaceous-atoms">Meterorite (Carbonaceous), ppb by atoms:</th><td>40</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>0.6</td></tr><tr><th class="abundance" id="abundance-universe-atoms">Universe, ppb by atom:</th><td>0.007</td></tr></tbody></table></div></div> </div> <div class="ae-custom-accordion paragraph paragraph--type--accordion paragraph--view-mode--default"> <h4 class="custom-accordion-header accordion--346627">History</h4> <div class="custom-accordion-body accordion-default-close accordion--346627"><div class="panel-collapse collapse" id="history"><table class="table properties-table"><tbody><tr><th id="discovered">Discovered By:</th><td>William Hyde Wollaston</td></tr><tr><th id="discovery-date">Discovery Date:</th><td>1804</td></tr><tr><th id="first-isolation">First Isolation:</th><td>William Hyde Wollaston (1804)</td></tr></tbody></table></div></div> </div> <div class="ae-accordion-open-close-all-btns"> <button class="ae-accordion-open-close-all-btns__open">+ OPEN ALL</button> <button class="ae-accordion-open-close-all-btns__close">- CLOSE ALL</button> </div> </div></div> </div> </div> </div> </div> <div id="tab-safety" class="tab-body paragraph paragraph--type--safety-tab paragraph--view-mode--default"> <div class="paragraph text-with-title paragraph--type--text-with-title paragraph--view-mode--default"> <h2 class="text-with-title__title">Health, Safety & Transportation Information for Rhodium</h2> <div class="text-with-title__body"><div class="tab-pane active" id="safety" role="tabpanel" aria-labelledby="tab4"><p>Rhodium is not toxic in its elemental form; however, safety data for Rhodium 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) Rhodium.</p><table class="safety-table"><thead><tr><th colspan="2" id="safety-data">Safety Data</th></tr></thead><tbody><tr><th><a href="https://www.americanelements.com/safety-information.html#signalword">Signal Word</a></th><td>Danger</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#hazardstatements">Hazard Statements</a></th><td>H228</td></tr><tr><th><a href="https://www.americanelements.com/hazard-codes.html#hazardcodes">Hazard Codes</a></th><td>N/A</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#riskcodes">Risk Codes</a></th><td>N/A</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#safetyprecautions">Safety Precautions</a></th><td>N/A</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#rtecs">RTECS Number</a></th><td>VI9069000</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#transportation">Transport Information</a></th><td>N/A</td></tr><tr><th><a href="https://www.americanelements.com/safety-information.html#wgk">WGK Germany</a></th><td>3</td></tr><tr><th><a href="https://www.americanelements.com/hazard-codes.html">Globally Harmonized System of </a><br><a href="https://www.americanelements.com/hazard-codes.html">Classification and Labelling (GHS)</a></th><td><a href="https://www.americanelements.com/hazard-codes.html#flame"><img src="https://www.americanelements.com/images_graphics/flame.png" alt="Flame-Flammables" width="42" height="42"></a></td></tr></tbody></table></div></div> </div> <div class="paragraph review-and-print paragraph--type--review-and-print paragraph--view-mode--default"> <h4 class="review-and-print__title custom-accordion-header accordion--print-and-review-347029">Review and Print SDS for Rhodium Metal</h4> <div id="sds" class="review-and-print__body custom-accordion-body accordion-default-cose accordion--print-and-review-347029"> <div class="review-and-print__body__pdf"> <a href="/print/view/pdf/sds_pane/block_2?view_args%5B0%5D=1250">Create Printable PDF</a> </div> <div class="sds-content review-and-print__body__content"><div class="panel-body collapse in row" id="sds"><div class="view view-sds-pane view-id-sds_pane view-display-id-block sds-content view-dom-id-e004017fd1f38bb6af92621782f9a0f9"><div class="view-header"><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> Rhodium Metal</p><p><strong>Product Number:</strong> All applicable American Elements product codes, e.g. RH-M-02, RH-M-03, RH-M-04, RH-M-05</p><p><strong>CAS #:</strong> 7440-16-6</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: Not applicable.<br>vPvB: Not applicable.</p><hr><h3>SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS</h3><p>Chemical characterization: Substances<br>CAS# Description:<br>7440-16-6 Rhodium<br>Identification number(s):<br>EC number: 231-125-0</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>Rhodium oxide<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>No information known.<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: 7440-16-6 Rhodium (100.0%)<br>PEL (USA) Long-term value: 0.1 mg/m³<br>REL (USA) Long-term value: 0.1 mg/m³ as Rh<br>TLV (USA) Long-term value: 1 mg/m³<br>EL (Canada) Short-term value: 0.3 mg/m³<br>Long-term value: 0.1 mg/m³ as Rh<br>EV (Canada) Long-term value: 1* 0.01** mg/m³ *metal,water-insol. compds.;**water-soluble compds<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: Not determined<br>Odor: Not determined<br>Odor threshold: Not determined.<br>pH-value: Not applicable.<br>Change in condition<br>Melting point/Melting range: 1966 °C (3571 °F)<br>Boiling point/Boiling range: 3695 °C (6683 °F)<br>Sublimation temperature / start: Not determined<br>Flammability (solid, gaseous): 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 at 20 °C (68 °F): 0 hPa<br>Density at 20 °C (68 °F): 12.41 g/cm³ (103.561 lbs/gal)<br>Relative density: Not determined.<br>Vapor density: Not applicable.<br>Evaporation rate: Not applicable.<br>Solubility in / Miscibility with Water: Not determined<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>Rhodium oxide</p><hr><h3>SECTION 11. TOXICOLOGICAL INFORMATION</h3><p>Information on toxicological effects<br>Acute toxicity: No effects known.<br>LD/LC50 values that are relevant for classification: No data<br>Skin irritation or corrosion: Powder: irritant effect<br>Eye irritation or corrosion: Powder: irritant effect<br>Sensitization: No sensitizing effects known.<br>Germ cell mutagenicity: No effects known.<br>Carcinogenicity:<br>ACGIH A4: Not classifiable as a human carcinogen: Inadequate data on which to classify the agent in terms of its carcinogenicity in humans and/or animals.<br>Reproductive toxicity: No effects known.<br>Specific target organ system toxicity - repeated exposure: No effects known.<br>Specific target organ system toxicity - single exposure: No effects known.<br>Aspiration hazard: No effects known.<br>Subacute to chronic toxicity: 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: Not applicable.<br>vPvB: 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:<br>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:<br>DOT<br>Marine Pollutant (DOT):<br>No<br>UN "Model Regulation":<br>-</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.<br>Chemical safety assessment:<br>A Chemical Safety Assessment has not been carried out.</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> <div id="tab-isotopes" class="tab-body paragraph paragraph--type--isotopes paragraph--view-mode--default"> <div class="paragraph text-with-title paragraph--type--text-with-title paragraph--view-mode--default"> <h2 class="text-with-title__title">Rhodium Isotopes</h2> <div class="text-with-title__body"><div class="tab-pane active" id="isotopes" role="tabpanel" aria-labelledby="tab5"><p><br> </p><p>Naturally occurring rhodium (Rh) has one stable isotope: <sup>103</sup>Rh.</p><table class="isotopes-table"><thead><tr><th scope="col" id="nuclide"><strong>Nuclide</strong></th><th scope="col" id="mass"><strong>Isotopic Mass</strong></th><th scope="col" id="half-life"><strong>Half-Life</strong></th><th scope="col" id="decay"><strong>Mode of Decay</strong></th><th scope="col" id="nuclear-spin"><strong>Nuclear Spin</strong></th><th scope="col" id="magnetic-moment"><strong>Magnetic Moment</strong></th><th scope="col" id="binding-energy"><strong>Binding Energy (MeV)</strong></th><th scope="col" id="natural-abundance"><strong>Natural Abundance</strong><br><strong>(% by atom)</strong></th></tr></thead><tbody><tr><th scope="row"><strong><sup>89</sup>Rh</strong></th><td>88.94884(48)#</td><td>10# ms [>1.5 µs]</td><td>ß<sup>+</sup> to <sup>89</sup>Ru</td><td>7/2+#</td><td>N/A</td><td>716.96</td><td>-</td></tr><tr><th scope="row"><strong><sup>90</sup>Rh</strong></th><td>89.94287(54)#</td><td>15(7) ms [12(+9-4) ms]</td><td>ß<sup>+</sup> to <sup>90</sup>Ru</td><td>0+#</td><td>N/A</td><td>730.63</td><td>-</td></tr><tr><th scope="row"><strong><sup>91</sup>Rh</strong></th><td>90.93655(43)#</td><td>1.74(14) s</td><td>ß<sup>+</sup> to <sup>91</sup>Ru</td><td>7/2+#</td><td>N/A</td><td>744.29</td><td>-</td></tr><tr><th scope="row"><strong><sup>92</sup>Rh</strong></th><td>91.93198(43)#</td><td>4.3(13) s</td><td>ß<sup>+</sup> to <sup>92</sup>Ru</td><td>(6+)</td><td>N/A</td><td>757.03</td><td>-</td></tr><tr><th scope="row"><strong><sup>93</sup>Rh</strong></th><td>92.92574(43)#</td><td>11.9(7) s</td><td>ß<sup>+</sup> to <sup>93</sup>Ru</td><td>9/2+#</td><td>N/A</td><td>770.7</td><td>-</td></tr><tr><th scope="row"><strong><sup>94</sup>Rh</strong></th><td>93.92170(48)#</td><td>70.6(6) s</td><td>ß<sup>+</sup> to <sup>94</sup>Ru; ß<sup>+</sup> + p to <sup>93</sup>Tc</td><td>(2+,4+)</td><td>N/A</td><td>782.5</td><td>-</td></tr><tr><th scope="row"><strong><sup>95</sup>Rh</strong></th><td>94.91590(16)</td><td>5.02(10) min</td><td>ß<sup>+</sup> to <sup>95</sup>Ru</td><td>(9/2)+</td><td>N/A</td><td>796.17</td><td>-</td></tr><tr><th scope="row"><strong><sup>96</sup>Rh</strong></th><td>95.914461(14)</td><td>9.90(10) min</td><td>ß<sup>+</sup> to <sup>96</sup>Ru</td><td>(6+)</td><td>N/A</td><td>805.18</td><td>-</td></tr><tr><th scope="row"><strong><sup>97</sup>Rh</strong></th><td>96.91134(4)</td><td>30.7(6) min</td><td>ß<sup>+</sup> to <sup>97</sup>Ru</td><td>9/2+</td><td>N/A</td><td>816.06</td><td>-</td></tr><tr><th scope="row"><strong><sup>98</sup>Rh</strong></th><td>97.910708(13)</td><td>8.72(12) min</td><td>ß<sup>+</sup> to <sup>98</sup>Ru</td><td>(2)+</td><td>N/A</td><td>825.07</td><td>-</td></tr><tr><th scope="row"><strong><sup>99</sup>Rh</strong></th><td>98.908132(8)</td><td>16.1(2) d</td><td>EC to <sup>99</sup>Ru</td><td>1/2-</td><td>N/A</td><td>835.01</td><td>-</td></tr><tr><th scope="row"><strong><sup>100</sup>Rh</strong></th><td>99.908122(20)</td><td>20.8(1) h</td><td>EC to <sup>100</sup>Ru</td><td>1-</td><td>N/A</td><td>843.09</td><td>-</td></tr><tr><th scope="row"><strong><sup>101</sup>Rh</strong></th><td>100.906164(18)</td><td>3.3(3) y</td><td>EC to <sup>101</sup>Ru; IT</td><td>1/2-</td><td>N/A</td><td>858.62</td><td>-</td></tr><tr><th scope="row"><strong><sup>102</sup>Rh</strong></th><td>101.906843(5)</td><td>207.0(15) d</td><td>EC to <sup>102</sup>Ru; ß<sup>-</sup> to <sup>102</sup>Pd</td><td>(1-,2-)</td><td>4.04</td><td>866.7</td><td>-</td></tr><tr><th scope="row"><strong><sup>103</sup>Rh</strong></th><td>102.905504(3)</td><td>Observationally Stable</td><td>-</td><td>1/2-</td><td>-0.0884</td><td>874.78</td><td>100</td></tr><tr><th scope="row"><strong><sup>104</sup>Rh</strong></th><td>103.906656(3)</td><td>42.3(4) s</td><td>EC to <sup>104</sup>Ru; ß<sup>-</sup> to <sup>104</sup>Pd</td><td>1+</td><td>N/A</td><td>882.86</td><td>-</td></tr><tr><th scope="row"><strong><sup>105</sup>Rh</strong></th><td>104.905694(4)</td><td>35.36(6) h</td><td>ß<sup>-</sup> to <sup>105</sup>Pd</td><td>7/2+</td><td>4.45</td><td>890.93</td><td>-</td></tr><tr><th scope="row"><strong><sup>106</sup>Rh</strong></th><td>105.907287(8)</td><td>29.80(8) s</td><td>ß<sup>-</sup> to <sup>106</sup>Pd</td><td>1+</td><td>N/A</td><td>899.01</td><td>-</td></tr><tr><th scope="row"><strong><sup>107</sup>Rh</strong></th><td>106.906748(13)</td><td>21.7(4) min</td><td>ß<sup>-</sup> to <sup>107</sup>Pd</td><td>7/2+</td><td>N/A</td><td>907.09</td><td>-</td></tr><tr><th scope="row"><strong><sup>108</sup>Rh</strong></th><td>107.90873(11)</td><td>16.8(5) s</td><td>ß<sup>-</sup> to <sup>108</sup>Pd</td><td>1+</td><td>N/A</td><td>915.17</td><td>-</td></tr><tr><th scope="row"><strong><sup>109</sup>Rh</strong></th><td>108.908737(13)</td><td>80(2) s</td><td>ß<sup>-</sup> to <sup>109</sup>Pd</td><td>7/2+</td><td>N/A</td><td>923.25</td><td>-</td></tr><tr><th scope="row"><strong><sup>110</sup>Rh</strong></th><td>109.91114(5)</td><td>28.5(15) s</td><td>ß<sup>-</sup> to <sup>110</sup>Pd</td><td>(>3)(+#)</td><td>N/A</td><td>922.01</td><td>-</td></tr><tr><th scope="row"><strong><sup>111</sup>Rh</strong></th><td>110.91159(3)</td><td>11(1) s</td><td>ß<sup>-</sup> to <sup>111</sup>Pd</td><td>(7/2+)</td><td>N/A</td><td>930.09</td><td>-</td></tr><tr><th scope="row"><strong><sup>112</sup>Rh</strong></th><td>111.91439(6)</td><td>3.45(37) s</td><td>ß<sup>-</sup> to <sup>112</sup>Pd</td><td>1+</td><td>N/A</td><td>938.17</td><td>-</td></tr><tr><th scope="row"><strong><sup>113</sup>Rh</strong></th><td>112.91553(5)</td><td>2.80(12) s</td><td>ß<sup>-</sup> to <sup>113</sup>Pd</td><td>(7/2+)</td><td>N/A</td><td>946.25</td><td>-</td></tr><tr><th scope="row"><strong><sup>114</sup>Rh</strong></th><td>113.91881(12)</td><td>1.85(5) s</td><td>ß<sup>-</sup> to <sup>114</sup>Pd; ß<sup>-</sup> + n to <sup>113</sup>Pd</td><td>1+</td><td>N/A</td><td>954.33</td><td>-</td></tr><tr><th scope="row"><strong><sup>115</sup>Rh</strong></th><td>114.92033(9)</td><td>0.99(5) s</td><td>ß<sup>-</sup> to <sup>115</sup>Pd</td><td>(7/2+)#</td><td>N/A</td><td>953.09</td><td>-</td></tr><tr><th scope="row"><strong><sup>116</sup>Rh</strong></th><td>115.92406(15)</td><td>0.68(6) s</td><td>ß<sup>-</sup> to <sup>116</sup>Pd; ß<sup>-</sup> + n to <sup>115</sup>Pd</td><td>1+</td><td>N/A</td><td>961.17</td><td>-</td></tr><tr><th scope="row"><strong><sup>117</sup>Rh</strong></th><td>116.92598(54)#</td><td>0.44(4) s</td><td>ß<sup>-</sup> to <sup>117</sup>Pd</td><td>(7/2+)#</td><td>N/A</td><td>969.25</td><td>-</td></tr><tr><th scope="row"><strong><sup>118</sup>Rh</strong></th><td>117.93007(54)#</td><td>310(30) ms</td><td>ß<sup>-</sup> to <sup>118</sup>Pd</td><td>(4-10)(+#)</td><td>N/A</td><td>968.01</td><td>-</td></tr><tr><th scope="row"><strong><sup>119</sup>Rh</strong></th><td>118.93211(64)#</td><td>300# ms [>300 ns]</td><td>ß<sup>-</sup> to <sup>119</sup>Pd</td><td>7/2+#</td><td>N/A</td><td>976.09</td><td>-</td></tr><tr><th scope="row"><strong><sup>120</sup>Rh</strong></th><td>119.93641(64)#</td><td>200# ms [>300 ns]</td><td>ß<sup>-</sup> to <sup>120</sup>Pd</td><td>N/A</td><td>N/A</td><td>984.17</td><td>-</td></tr><tr><th scope="row"><strong><sup>121</sup>Rh</strong></th><td>120.93872(97)#</td><td>100# ms [>300 ns]</td><td>ß<sup>-</sup> to <sup>121</sup>Pd</td><td>7/2+#</td><td>N/A</td><td>992.24</td><td>-</td></tr><tr><th scope="row"><strong><sup>122</sup>Rh</strong></th><td>121.94321(75)#</td><td>50# ms [>300 ns]</td><td>Unknwon</td><td>N/A</td><td>N/A</td><td>991.01</td><td>-</td></tr></tbody></table></div></div> </div> </div> </div> </div> </div> </article> </div> </div> </section> </main> </div> </div> <footer class="site-footer"> <div class="layout-container"> <div class="site-footer__top clearfix"> <div> <div id="block-sponsers-box2" class="Sponsers-box-block"> <div> <div class="layout layout--onecol"> <div class="layout__region layout__region--content"> <div> <div class="visually-hidden">Image</div> <img loading="lazy" src="/images/styles/large/public/2025-01/ARPA-E-Summit.png?itok=E3UTxRam" width="480" height="104" alt="ARPA-E Energy Innovation Summit" title="ARPA-E Energy Innovation Summit" /> </div> </div> </div> </div> <p>Please join us and our customers and co-sponsors GE and BASF at the <a href="https://www.arpae-summit.com/">ARPA-E Energy Innovation Summit</a> in Washington, DC on March 17, 2025.</p> </div> <div id="block-ae-theme-copyright" class="footer-copyright"> <div class="footer-copyright--text"> <div class="layout layout--onecol"> <div class="layout__region layout__region--content"> <div> 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. 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