Samarium (Sm) | AMERICAN ELEMENTS ®

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class="symbol2">Sm</span><span class="number">62</span><span class="weight">150.36</span></span>  </div>   <div id="element-tabs"> <ul class="nav nav-pills nav-justified" role="tablist"> <li><a href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#about" id="tab1" role="tab" aria-controls="about" data-toggle="pill" class="InfoTab" tabindex="0">About Samarium</a></li> <li class="active"><a href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#products" id="tab2" role="tab" aria-controls="products" data-toggle="pill" class="InfoTab" tabindex="0">Products</a></li> <li><a href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#properties" id="tab3" role="tab" aria-controls="properties" data-toggle="pill" class="InfoTab" tabindex="0">Properties</a></li> <li><a href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#safety" id="tab4" role="tab" aria-controls="safety" data-toggle="pill" class="InfoTab" tabindex="0">Safety</a></li> <li><a href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#isotopes" id="tab5" role="tab" aria-controls="isotopes" data-toggle="pill" class="InfoTab" tabindex="0">Isotopes</a></li> </ul> </div> <div id="content"> <div class="tab-content"> <div class="tab-pane" id="about" role="tabpanel" aria-labelledby="tab1"> <h2>About Samarium</h2><img src="images_graphics/element-bohr-models/samarium-bohr-model.jpg" alt="Samarium Bohr" width="200" height="200" class="image-left"> <p>In 1839, a German mineralogist named Gustav Rose described a new mineral in samples provided to him by a Russian mining engineer named Samarsky-Bykhovets. The mineral was eventually named samarskite after its discoverer. When French chemist Paul Emile Lecoq de Boisbaudran isolated an oxide of a new element from the mineral in 1879, he named it after the mineral, making samarium the first chemical element to be named, if somewhat indirectly, after an individual. Though the pure metal could not be easily obtained in quantities sufficient for commercial use until the 1950s, a byproduct of the purification of other <a href="https://www-americanelements-com.translate.goog/rare-earths.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">rare earths</a> with a high percentage of samarium did find early use in control rods for some of the first nuclear reactors.</p> <p>Today samarium is used in a number of applications, the most significant of which is high-strength <a href="https://www-americanelements-com.translate.goog/samarium-cobalt-alloy-12305-84-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">samarium-cobalt</a> magnets. These magnets are slightly surpassed in strength by neodymium magnets, but are preferred in some applications due to their ability to maintain their magnetic properties at significantly higher temperatures. These magnets are frequently found in small motors, speakers, and other electronic devices. Another significant commercial use is catalysis. Samarium catalysts are used in a variety of industrial processes including decomposition of plastics, dechlorination of pollutants, and dehydration of ethanol. Additionally, a variety of samarium compounds are used as catalysts and reagents in organic synthesis. Samarium can be also be used to provide useful properties to a substrate material such as glass when added in small quantities during production, a process often referred to as doping. <a href="https://www-americanelements-com.translate.goog/samarium-oxide-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium oxide</a> is added to ceramics and glasses to increase absorption of infrared light. Samarium-doped crystals have been used as gain media for lasers since the one of the first solid-state lasers was produced by IBM research labs in 1961, and in 1997 a samarium-based gain media was used to produce the first saturated x-ray laser.</p> <p>Several specific isotopes of samarium have specialized uses. The radioactive isotope samarium-153 is used in the treatment of some advanced cancers, as it naturally localizes to the bones and emits beta particles that kill the nearby cancer cells, lessening the extreme pain of bone metastases. Samarium-149 is notable for being an excellent absorber of neutrons, and is used in this capacity in the control rods of nuclear reactors. Additionally, relative ratios of samarium-147 and its decay product <a href="https://www-americanelements-com.translate.goog/nd.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">neodymium</a>-143 can be measured and used to estimate the age of objects that are billions of years old.</p> <p>Finally, there are a number of samarium applications still under development. A group of compounds called samarium monochalcogenides are crystalline <a href="https://www-americanelements-com.translate.goog/semiconductors.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">semiconducting</a> solids with interesting properties. In particular, the electrical properties of the solids change depending on the pressure applied to the material, and the material generates electric voltage when heated. These unique phenomena are being investigated for use in pressure sensors, memory devices, and thermoelectric power converters. Samarium can be used in the production of superconducting materials, and samarium-doped iron superconductors are among the highest-temperature superconductors known. <a href="https://www-americanelements-com.translate.goog/cerium-oxide-yttria-doped-nanoparticles-nanopowder-170033-03-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium-doped cerium oxide nanostructures</a> are of interest for use in solid oxide fuel cells.</p> <p>Samarium is a rare earth element and is found along with other elements of this group in a variety of rare earth minerals. The primary commercial sources are the minerals monazite and bastnasite.</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="https://www-americanelements-com.translate.goog/nickel-oxide-samaria-doped-ceria-sdc-anode?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Nickel Oxide - Samaria doped Ceria (SDC) Anode</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samaria-doped-ceria-sdc?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samaria Doped Ceria</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-acetate-17829-86-6?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Acetate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iii-acetate-hydrate-100587-91-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium(III) Acetate Hydrate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-acetate-solution-17829-86-6?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Acetate Solution</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-arsenate-15479-87-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Arsenate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-barium-copper-oxide-110778-98-8?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Barium Copper Oxide</a></li> <li class="product"><a 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href="https://www-americanelements-com.translate.goog/samarium-rod-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Rod</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-samples-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Samples</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-shavings-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Shaving</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-sheet-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Sheets</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-shot-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Shot</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-single-crystal-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Single Crystal</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-sleeves-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Sleeves</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-slugs-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Slugs</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-specimen-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Specimens</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-spheres-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Spheres</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-spring-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Spring</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-strip-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Strip</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-tape-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Tape</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-tube-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Tube</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-wafer-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Wafer</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-wire-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Wire</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/ultra-thin-samarium-nanoscale-foil-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Ultra Thin Samarium Foil</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="https://www-americanelements-com.translate.goog/aluminum-samarium-alloy?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Aluminum Samarium Alloy</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/aluminum-samarium-foil?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Aluminum Samarium Foil</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/cerium-samarium-alloy?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium Samarium Alloy</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/cerium-samarium-foil?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium Samarium Foil</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cobalt-alloy-12305-84-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cobalt Alloy</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cobalt-powder-12305-84-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cobalt Powder</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cobalt-smco5-powder-12017-68-4?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cobalt SmCo5 Powder</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iron-alloy?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Iron Alloy</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iron-foil?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Iron Foil</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-zirconium-alloy?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Zirconium Alloy</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-zirconium-foil?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Zirconium Foil</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="https://www-americanelements-com.translate.goog/cerium-oxide-samarium-doped-pellets?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium(IV) Oxide, Samarium doped Pellets</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-nanoparticles-nanopowder-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Nanoparticles</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-pellets-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Pellets</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-pieces-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Pieces</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-powder-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Powder</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-rotatable-sputtering-target-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Rotatable Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-shot-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Shot</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-sputtering-target-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-tablets-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Tablets</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="https://www-americanelements-com.translate.goog/samarium-2-ethylhexanoate?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium 2-Ethylhexanoate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-2-methoxyethoxide-solution?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium 2-Methoxyethoxide Solution</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-acetylacetonate-14589-42-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Acetylacetonate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iii-acetylacetonate-hydrate-86322-73-8?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium(III) Acetylacetonate Hydrate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iii-isopropoxide-3504-40-3?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium(III) Isopropoxide</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iii-trifluoroacetylacetonate-23301-82-8?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium(III) Trifluoroacetylacetonate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-trifluoromethanesulfonate-52093-28-4?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Trifluoromethanesulfonate</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/tris-2-2-6-6-tetramethyl-3-5-heptanedionato-samarium-iii-15492-50-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)samarium(III)</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/tris-cyclopentadienyl-samarium-iii-1272-26-0?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Tris(cyclopentadienyl)samarium(III)</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/tris-n-n-bis-trimethylsilyl-amide-samarium-iii-35789-01-6?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Tris[N,N-bis(trimethylsilyl)amide]samarium(III)</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/tris-tetramethylcyclopentadienyl-samarium-iii-148607-24-3?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Tris(tetramethylcyclopentadienyl)samarium(III)</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="https://www-americanelements-com.translate.goog/cerium-oxide-samarium-doped-nanoparticles-nanopowder?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium Oxide, Samarium doped Nanopowder</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/cerium-oxide-samarium-doped-nanoparticle-dispersion?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium Oxide, Samarium doped Nanoparticle Dispersion</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-nanoparticles-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Nanoparticles</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-nanoparticles-dispersion-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Nanoparticle Dispersion</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-nanorods-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Nanorods</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-nanoparticle-dispersion-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Nanoparticle Dispersion</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-nanoparticles-nanopowder-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Nanoparticles</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-strontium-cobalt-oxide-nanoparticles-nanopowder?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Strontium Cobalt Oxide Nanoparticles</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-strontium-cobalt-oxide-nanoparticle-dispersion?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Strontium Cobalt Oxide Nanoparticle Dispersion</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="https://www-americanelements-com.translate.goog/samarium-arsenide-12255-39-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Arsenide</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-phosphide-12066-50-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Phosphide</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-selenide-70714-63-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Selenide</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-sulfide-12067-22-0?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Sulfide</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-telluride-12040-00-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Telluride</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="https://www-americanelements-com.translate.goog/aluminum-samarium-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Aluminum Samarium Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/cerium-samarium-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Cerium Samarium Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/magnesium-samarium-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Magnesium Samarium Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-boride-sputtering-target-12008-30-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Boride Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cerium-copper-oxide-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cerium Copper Oxide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cobalt-smco5-sputtering-target-12017-68-4?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cobalt SmCo5 Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-cobalt-sputtering-target-12305-84-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Cobalt Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-copper-oxide-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Copper Oxide Sputtering Target </a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samaria-doped-ceria-sdc-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samaria-doped Ceria (SDC) Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-doped-barium-titanate-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium-doped Barium Titanate Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-fluoride-sputtering-target-13765-24-7?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Fluoride Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-iron-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Iron Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-rotatable-sputtering-target-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Rotatable Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-oxide-sputtering-target-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Oxide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-nickel-oxide-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Nickel Oxide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-nitride-sputtering-target-25764-14-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Nitride Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-phosphide-sputtering-target-12066-50-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Phosphide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-rotatable-sputtering-target-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Rotatable Sputtering Targets</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-scandium-oxide-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Scandium Oxide Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-selenide-sputtering-target-70714-63-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Selenide Sputtering Targets</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-sputtering-target-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-telluride-sputtering-target-12040-00-5?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Telluride Sputtering Target</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-titanate-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Titanate Sputtering Target </a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-zirconium-sputtering-target?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium Zirconium Sputtering Target</a></li> </ul> </div> </div> <div class="panel panel-products"> <div class="panel-heading activate-panel" data-toggle="collapse" data-target="#isotope-products"> <span class="panel-title">Isotopes</span><span class="Arrowhead-Down-24 dropdown-icon"></span> </div> <div id="isotope-products" class="panel-body collapse row"> <ul class="grid grid3 no-dot"> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-144-oxide-isotope?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium-144 Oxide Isotope</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-152-oxide-isotope?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium-152 Oxide Isotope</a></li> <li class="product"><a href="https://www-americanelements-com.translate.goog/samarium-154-oxide-isotope?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium-154 Oxide Isotope</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"><img src="elemental-samarium.png" width="74" height="74" alt="Elemental Samarium Picture" class="image-left"> <p>Samarium is primarily utilized in the production of <a href="https://www-americanelements-com.translate.goog/samarium-cobalt-alloy-12305-84-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">samarium-cobalt</a> (Sm<sub>2</sub>Co<sub>17</sub>) permanent magnets. It is also used in laser applications and for its dielectric properties. Samarium-cobalt magnets replaced the more expensive <a href="https://www-americanelements-com.translate.goog/pt.htm?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">platinum</a>-<a href="https://www-americanelements-com.translate.goog/co.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">cobalt</a> magnets in the early 1970s. While now overshadowed by the even stronger <a href="https://www-americanelements-com.translate.goog/nd.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">neodymium</a>-<a href="https://www-americanelements-com.translate.goog/fe.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">iron</a>-<a href="https://www-americanelements-com.translate.goog/bb.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">boron</a> magnet, they are still valued for their ability to function<a href="https://www-americanelements-com.translate.goog/samarium-oxide-powder-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en"><img src="samarium-oxide-powder.png" alt="High Purity (99.999%) Samarium Oxide (Sm2O3) Powder" width="116" height="139" class="image-right"></a> at high temperatures. They are utilized in lightweight electronic equipment where size or space is a limiting factor and where functionality at high temperature is a concern. Applications include electronic watches, aeospace equipment, microwave technology and servomotors.<a href="https://www-americanelements-com.translate.goog/samarium-sputtering-target-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en"><img src="samarium-sputtering-target.png" alt="High Purity (99.999%) Samarium (Sm) Sputtering Target" width="125" height="136" class="image-left"></a> Samarium is available as <a href="https://www-americanelements-com.translate.goog/samarium-metal-7440-19-9?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">metal</a> and compounds with purities from 99% to 99.999% (ACS grade to <a href="https://www-americanelements-com.translate.goog/Ultra_high_purity_metals_powders.htm?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">ultra-high purity</a>). Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. <a href="https://www-americanelements-com.translate.goog/samarium-oxide-12060-58-1?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Samarium oxides</a> are available in powder and dense pellet form for such uses as optical coating and thin film applications. <a href="https://www-americanelements-com.translate.goog/oxides.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Oxides</a> tend to be insoluble. <a href="https://www-americanelements-com.translate.goog/samarium-fluoride-13765-24-7?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">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. Samarium is also available in soluble forms including <a href="https://www-americanelements-com.translate.goog/chemicals.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">chlorides, nitrates and acetates</a>. These compounds can be manufactured as <a href="https://www-americanelements-com.translate.goog/solutions?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">solutions</a> at specified stoichiometries.</p> </div> </div> <div class="tab-pane" id="properties" role="tabpanel" aria-labelledby="tab3"> <h2>Samarium Properties</h2> <p><img src="samarium-block.png" alt="Samarium (Sm) atomic and molecular weight, atomic number and elemental symbol" class="image-left"><strong>Samarium</strong> is a Block F, Group 3, Period 6 element. <img src="samarium-bohr.jpg" alt="Samarium Bohr Model" width="200" height="200" class="image-right">The number of electrons in each of Samarium's shells is 2, 8, 18, 24, 8, 2 and its electron configuration is [Xe]4f<sup>6</sup> 6s<sup>2</sup>. The samarium atom has a radius of 180.pm and its Van der Waals radius is 229.pm. In its elemental form, CAS 7440-19-9, samarium has a silvery-white appearance. Samarium was discovered and first isolated by Lecoq de Boisbaudran in 1879. It is named after the mineral samarskite.</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="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#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"> <tbody> <tr> <th id="symbol">Symbol:</th> <td width="64">Sm</td> </tr> <tr> <th id="atomic-number">Atomic Number:</th> <td>62</td> </tr> <tr> <th id="atomic-weight">Atomic Weight:</th> <td>150.36</td> </tr> <tr> <th id="element-category">Element Category:</th> <td>Lanthanide</td> </tr> <tr> <th id="group-period-block">Group, Period, Block:</th> <td>n/a, 6, f</td> </tr> <tr> <th id="color">Color:</th> <td>silvery-white</td> </tr> <tr> <th id="other-names">Other Names:</th> <td>Samario</td> </tr> </tbody> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"><a data-toggle="collapse" class="activate-panel" href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#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"> <tbody> <tr> <th id="melting-point">Melting Point:</th> <td width="64">1072°C, 1961.6°F, 1345.15 K</td> </tr> <tr> <th id="boiling-point">Boiling Point:</th> <td>1794°C, 3261.2°F, 2067.15 K</td> </tr> <tr> <th id="density">Density:</th> <td>7353 kg/m<sup>3</sup></td> </tr> <tr> <th id="liquid-density">Liquid Density @ Melting Point:</th> <td>7.16 g·cm<sup>3</sup></td> </tr> <tr> <th id="density-20-degrees-C">Density @ 20°C:</th> <td>7.54 g/cm<sup>3</sup></td> </tr> <tr> <th id="solid-density">Density of Solid:</th> <td>7353 kg·m<sup>3</sup></td> </tr> <tr> <th id="specific-heat">Specific Heat:</th> <td>0.043 Cal/g/K @ 25 °C</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>10.9</td> </tr> <tr> <th id="vaporization-heat">Heat of Vaporization (kJ·mol<sup>-1</sup>):</th> <td>164.8</td> </tr> <tr> <th id="atomization-heat">Heat of Atomization (kJ·mol<sup>-1</sup>):</th> <td>206.1</td> </tr> <tr> <th id="thermal-conductivity">Thermal Conductivity:</th> <td>0.133 W/cm/K @ 298.2 K</td> </tr> <tr> <th id="thermal-expansion">Thermal Expansion:</th> <td>(r.t.) ( poly) 12.7 µm/(m·K)</td> </tr> <tr> <th id="electrical-resistivity">Electrical Resistivity:</th> <td>88.0 µΩ-cm @ 25°C</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>29.54 J·mol<sup>-1</sup>·K<sup>-1</sup></td> </tr> <tr> <th id="youngs-modulus">Young's Modulus:</th> <td>(? form) 49.7 GPa</td> </tr> <tr> <th id="shear-modulus">Shear Modulus:</th> <td>(? form) 19.5 GPa</td> </tr> <tr> <th id="bulk-modulus">Bulk Modulus:</th> <td>(? form) 37.8 GPa</td> </tr> <tr> <th id="poisson-ratio">Poisson Ratio:</th> <td>(? form) 0.274</td> </tr> <tr> <th id="mohs-hardness">Mohs Hardness:</th> <td>N/A</td> </tr> <tr> <th id="vickers-hardness">Vickers Hardness:</th> <td>412 MPa</td> </tr> <tr> <th id="brinell-hardness">Brinell Hardness:</th> <td>441 MPa</td> </tr> <tr> <th id="speed-of-sound">Speed of Sound:</th> <td>(20 °C) 2130 m·s<sup>-1</sup></td> </tr> <tr> <th id="pauling-electronegativity">Pauling Electronegativity:</th> <td>1.17</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>1.07</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>2.83</td> </tr> <tr> <th id="reflectivity">Reflectivity (%):</th> <td>N/A</td> </tr> <tr> <th id="refractive-index">Refractive Index:</th> <td>N/A</td> </tr> </tbody> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"><a data-toggle="collapse" class="activate-panel" href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#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"> <tbody> <tr> <th id="electrons">Electrons:</th> <td width="64">62</td> </tr> <tr> <th id="protons">Protons:</th> <td>62</td> </tr> <tr> <th id="neutrons">Neutrons:</th> <td>88</td> </tr> <tr> <th id="electron-configuration">Electron Configuration:</th> <td>[Xe]4f<sup>6</sup> 6s<sup>2</sup></td> </tr> <tr> <th id="atomic-radius">Atomic Radius:</th> <td>180 pm</td> </tr> <tr> <th id="atomic-radius-non-bonded">Atomic Radius,<br> non-bonded (Å):</th> <td>2.36</td> </tr> <tr> <th id="covalent-radius">Covalent Radius:</th> <td>198±8 pm</td> </tr> <tr> <th id="covalent-radius-non-bonded">Covalent Radius (Å):</th> <td>1.85</td> </tr> <tr> <th id="van-der-waals-radius">Van der Waals Radius:</th> <td>229 pm</td> </tr> <tr> <th id="oxidation-states">Oxidation States:</th> <td>4, 3, 2, 1 (mildly basic oxide)</td> </tr> <tr> <th id="phase">Phase:</th> <td>Solid</td> </tr> <tr> <th id="crystal-structure">Crystal Structure:</th> <td>rhombohedral</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>Unknown</td> </tr> <tr> <th id="1-ionization">1<sup>st</sup> Ionization Energy:</th> <td>544.53 kJ·mol<sup>-1</sup></td> </tr> <tr> <th id="2-ionization">2<sup>nd</sup> Ionization Energy:</th> <td>1068.10 kJ·mol<sup>-1</sup></td> </tr> <tr> <th id="3-ionization">3<sup>rd</sup> Ionization Energy:</th> <td>2257.77 kJ·mol<sup>-1</sup></td> </tr> </tbody> </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="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#identifiers">Identifiers<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="identifiers"> <table class="table properties-table"> <tbody> <tr> <th id="cas-number">CAS Number:</th> <td width="64">7440-19-9</td> </tr> <tr> <th id="ec-number">EC Number:</th> <td>231-128-7</td> </tr> <tr> <th id="mdl-number">MDL Number:</th> <td>MFCD00011233</td> </tr> <tr> <th id="beilstein-number">Beilstein Number:</th> <td>N/A</td> </tr> <tr> <th id="smile-id">SMILES Identifier:</th> <td>[Sm]</td> </tr> <tr> <th id="inchi-id">InChI Identifier:</th> <td>InChI=1S/Sm</td> </tr> <tr> <th id="inchi-key">InChI Key:</th> <td>KZUNJOHGWZRPMI-UHFFFAOYSA-N</td> </tr> <tr> <th id="pubchem-cid">PubChem CID:</th> <td>23951</td> </tr> <tr> <th id="chemspider-id">ChemSpider ID:</th> <td>22391</td> </tr> </tbody> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"><a data-toggle="collapse" class="activate-panel" href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#abundance">Abundance<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="abundance"> <table class="table properties-table"> <tbody> <tr> <th class="abundance" id="earth-total">Earth - Total:</th> <td width="64">208 ppb</td> </tr> <tr> <th class="abundance" id="mercury-total">Mercury - Total:</th> <td>160 ppb </td> </tr> <tr> <th class="abundance" id="venus-total">Venus - Total:</th> <td>218 ppb </td> </tr> <tr> <th class="abundance" id="abundance-earth-seawater-weight">Earth - Seawater (Oceans), ppb by weight:</th> <td>0.00045</td> </tr> <tr> <th class="abundance" id="abundance-earth-seawater-atoms">Earth - Seawater (Oceans), ppb by atoms:</th> <td>0.000019</td> </tr> <tr> <th class="abundance" id="abundance-earth-crust-weight">Earth -  Crust (Crustal Rocks), ppb by weight:</th> <td>6000</td> </tr> <tr> <th class="abundance" id="abundance-earth-crust-atoms">Earth -  Crust (Crustal Rocks), ppb by atoms:</th> <td>820</td> </tr> <tr> <th class="abundance" id="abundance-sun-weight">Sun - Total, ppb by weight:</th> <td>1</td> </tr> <tr> <th class="abundance" id="abundance-sun-atoms">Sun - Total, ppb by atoms:</th> <td>0.01</td> </tr> <tr> <th class="abundance" id="abundance-stream-weight">Stream, ppb by weight:</th> <td>0.03</td> </tr> <tr> <th class="abundance" id="abundance-stream-atoms">Stream, ppb by atoms:</th> <td>0.0002</td> </tr> <tr> <th class="abundance" id="abundance-meterorite-carbonaceous-weight">Meterorite (Carbonaceous), ppb by weight:</th> <td>170</td> </tr> <tr> <th class="abundance" id="abundance-meterorite-carbonaceous-atoms">Meterorite (Carbonaceous), ppb by atoms:</th> <td>20</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>5</td> </tr> <tr> <th class="abundance" id="abundance-universe-atoms">Universe, ppb by atom:</th> <td>0.04</td> </tr> </tbody> </table> </div> </div> <div class="panel panel-default properties-panel"> <div class="panel-heading active-collapsible"><a data-toggle="collapse" class="activate-panel" href="https://www-americanelements-com.translate.goog/sm.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#history">History<span class="Arrowhead-Down-24 dropdown-icon"></span></a> </div> <div class="panel-collapse collapse" id="history"> <table class="table properties-table"> <tbody> <tr> <th id="discovered">Discovered By:</th> <td width="64">Lecoq de Boisbaudran</td> </tr> <tr> <th id="discovery-date">Discovery Date:</th> <td>1879</td> </tr> <tr> <th id="first-isolation">First Isolation:</th> <td>Lecoq de Boisbaudran (1879)</td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <div class="tab-pane" id="safety" role="tabpanel" aria-labelledby="tab4"> <h2>Health, Safety & Transportation Information for Samarium</h2> <p>Samarium is somewhat toxic. Safety data for Samarium 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) Samarium.</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.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#signalword">Signal Word </a></th> <td>Danger</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#hazardstatements">Hazard Statements </a></th> <td>H228-H261-H373</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/hazard-codes.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#hazardcodes">Hazard Codes</a></th> <td>R</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#riskcodes">Risk Codes </a></th> <td>15-33</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#safetyprecautions">Safety Precautions </a></th> <td>30</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#rtecs">RTECS Number </a></th> <td>N/A</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#transportation">Transport Information</a></th> <td>UN 2910 7</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/safety-information.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#wgk">WGK Germany </a></th> <td>3</td> </tr> <tr> <th><a href="https://www-americanelements-com.translate.goog/hazard-codes.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en">Globally Harmonized System of <br> Classification and Labelling (GHS) </a></th> <td><a href="https://www-americanelements-com.translate.goog/hazard-codes.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#flame"><img src="flame.png" alt="Flame-Flammables" width="42" height="42"></a> <a href="https://www-americanelements-com.translate.goog/hazard-codes.html?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en#healthhazard"><img src="health-hazzard.png" alt="Health Hazard" width="45" height="45"></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 Samarium 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-6cf915a455005b53cd4bf118e85beb7e"> <div class="view-header"> <div class="link-container"><span class="print_pdf"><a href="https://www-americanelements-com.translate.goog/printpdf/samarium-metal-7440-19-9/sds?_x_tr_sl=en&_x_tr_tl=zh-CN&_x_tr_hl=en" 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> Samarium Metal</p> <p><strong>Product Number:</strong> All applicable American Elements product codes, e.g. SM-M-02, SM-M-03, SM-M-04, SM-M-05</p> <p><strong>CAS #:</strong> 7440-19-9</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> 1<br> 1<br> 1<br> Health (acute effects) = 1<br> Flammability = 1<br> Physical Hazard = 1<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> 7440-19-9 Samarium<br> Identification number(s):<br> EC number:<br> 231-128-7</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> Metal oxide fume<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> Handle under dry protective gas.<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> Store away from oxidizing agents.<br> Do not store together with acids.<br> Store away from acid chlorides.<br> Store away from halogens.<br> Store away from air.<br> Store away from water/moisture.<br> Further information about storage conditions:<br> Store under dry inert gas.<br> This product is moisture sensitive.<br> This product is air sensitive.<br> Keep container tightly sealed.<br> Store in cool, dry conditions in well sealed containers.<br> Protect from humidity and water.<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> The product does not contain any relevant quantities of materials with critical values that have to be monitored at the workplace.<br> Additional information:<br> 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:<br> Not required.<br> Protection of hands:<br> Not required.<br> Penetration time of glove material (in minutes)<br> Not determined<br> Eye protection:<br> Safety glasses<br> Body protection:<br> 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: Silver grey<br> Odor: Odorless<br> Odor threshold: Not determined.<br> pH-value: Not applicable.<br> Change in condition<br> Melting point/Melting range: 1072 °C (1962 °F)<br> Boiling point/Boiling range: 1794 °C (3261 °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): 7.52 g/cm³ (62.754 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> Acids<br> Air<br> Water/moisture<br> Oxidizing agents<br> Acid chlorides<br> Halogens<br> Hazardous decomposition products:<br> Metal oxide fume</p> <hr> <h3>SECTION 11. TOXICOLOGICAL INFORMATION</h3> <p>Information on toxicological effects<br> Acute toxicity:<br> No effects known.<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> 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> 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:<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</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 class="tab-pane" id="isotopes" role="tabpanel" aria-labelledby="tab5"> <h2>Samarium Isotopes</h2> <p>Samarium (Sm) has five stable isotopes: <sup>144</sup>Sm, <sup>149</sup>Sm, <sup>150</sup>Sm, <sup>152</sup>Sm and <sup>154</sup>Sm.</p> <table class="isotopes-table"> <tbody> <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>128</sup>Sm</th> <td>127.95808(54)#</td> <td>0.5# s</td> <td>Unknown</td> <td>0+</td> <td>N/A</td> <td>1011.09</td> <td>-</td> </tr> <tr> <th scope="row"><sup>129</sup>Sm</th> <td>128.95464(54)#</td> <td>550(100) ms</td> <td>Unknown</td> <td>5/2+#</td> <td>N/A</td> <td>1019.17</td> <td>-</td> </tr> <tr> <th scope="row"><sup>130</sup>Sm</th> <td>129.94892(43)#</td> <td>1# s</td> <td>ß<sup>+</sup> to <sup>130</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1036.56</td> <td>-</td> </tr> <tr> <th scope="row"><sup>131</sup>Sm</th> <td>130.94611(32)#</td> <td>1.2(2) s</td> <td>ß<sup>+</sup> to <sup>131</sup>Pm; ß<sup>+</sup> + p to <sup>130</sup>Nd</td> <td>5/2+#</td> <td>N/A</td> <td>1044.64</td> <td>-</td> </tr> <tr> <th scope="row"><sup>132</sup>Sm</th> <td>131.94069(32)#</td> <td>4.0(3) s</td> <td>ß<sup>+</sup> to <sup>132</sup>Pm; ß<sup>+</sup> + p to <sup>131</sup>Nd</td> <td>0+</td> <td>N/A</td> <td>1052.72</td> <td>-</td> </tr> <tr> <th scope="row"><sup>133</sup>Sm</th> <td>132.93867(21)#</td> <td>2.90(17) s</td> <td>ß<sup>+</sup> to <sup>133</sup>Pm; ß<sup>+</sup> + p to <sup>132</sup>Nd</td> <td>(5/2+)</td> <td>N/A</td> <td>1070.11</td> <td>-</td> </tr> <tr> <th scope="row"><sup>134</sup>Sm</th> <td>133.93397(21)#</td> <td>10(1) s</td> <td>ß<sup>+</sup> to <sup>134</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1078.19</td> <td>-</td> </tr> <tr> <th scope="row"><sup>135</sup>Sm</th> <td>134.93252(17)</td> <td>10.3(5) s</td> <td>ß<sup>+</sup> to <sup>135</sup>Pm; ß<sup>+</sup> + p to <sup>134</sup>Nd</td> <td>(7/2+)</td> <td>N/A</td> <td>1086.27</td> <td>-</td> </tr> <tr> <th scope="row"><sup>136</sup>Sm</th> <td>135.928276(13)</td> <td>47(2) s</td> <td>ß<sup>+</sup> to <sup>136</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1103.67</td> <td>-</td> </tr> <tr> <th scope="row"><sup>137</sup>Sm</th> <td>136.92697(5)</td> <td>45(1) s</td> <td>ß<sup>+</sup> to <sup>137</sup>Pm</td> <td>(9/2-)</td> <td>N/A</td> <td>1111.75</td> <td>-</td> </tr> <tr> <th scope="row"><sup>138</sup>Sm</th> <td>137.923244(13)</td> <td>3.1(2) min</td> <td>ß<sup>+</sup> to <sup>138</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1119.82</td> <td>-</td> </tr> <tr> <th scope="row"><sup>139</sup>Sm</th> <td>138.922297(12)</td> <td>2.57(10) min</td> <td>ß<sup>+</sup> to <sup>139</sup>Pm</td> <td>1/2+</td> <td>N/A</td> <td>1127.9</td> <td>-</td> </tr> <tr> <th scope="row"><sup>140</sup>Sm</th> <td>139.918995(13)</td> <td>14.82(12) min</td> <td>ß<sup>+</sup> to <sup>140</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1145.3</td> <td>-</td> </tr> <tr> <th scope="row"><sup>141</sup>Sm</th> <td>140.918476(9)</td> <td>10.2(2) min</td> <td>ß<sup>+</sup> to <sup>141</sup>Pm</td> <td>1/2+</td> <td>N/A</td> <td>1153.38</td> <td>-</td> </tr> <tr> <th scope="row"><sup>142</sup>Sm</th> <td>141.915198(6)</td> <td>72.49(5) min</td> <td>ß<sup>+</sup> to <sup>142</sup>Pm</td> <td>0+</td> <td>N/A</td> <td>1161.46</td> <td>-</td> </tr> <tr> <th scope="row"><sup>143</sup>Sm</th> <td>142.914628(4)</td> <td>8.75(8) min</td> <td>ß<sup>+</sup> to <sup>143</sup>Pm</td> <td>3/2+</td> <td>N/A</td> <td>1169.53</td> <td>-</td> </tr> <tr> <th scope="row"><sup>144</sup>Sm</th> <td>143.911999(3)</td> <td>STABLE</td> <td>-</td> <td>0+</td> <td>N/A</td> <td>1177.61</td> <td>3.07</td> </tr> <tr> <th scope="row"><sup>145</sup>Sm</th> <td>144.913410(3)</td> <td>340(3) d</td> <td>EC to <sup>145</sup>Pm</td> <td>7/2-</td> <td>-1.1</td> <td>1185.69</td> <td>-</td> </tr> <tr> <th scope="row"><sup>146</sup>Sm</th> <td>145.913041(4)</td> <td>1.03(5)E+8 y</td> <td>a to <sup>142</sup>Nd</td> <td>0+</td> <td>N/A</td> <td>1193.77</td> <td>-</td> </tr> <tr> <th scope="row"><sup>147</sup>Sm</th> <td>146.9148979(26)</td> <td>1.06(2)E+11 y</td> <td>a to <sup>143</sup>Nd</td> <td>7/2-</td> <td>-0.8149</td> <td>1201.85</td> <td>14.99</td> </tr> <tr> <th scope="row"><sup>148</sup>Sm</th> <td>147.9148227(26)</td> <td>7(3)E+15 y</td> <td>a to <sup>144</sup>Nd</td> <td>0+</td> <td>N/A</td> <td>1209.93</td> <td>11.24</td> </tr> <tr> <th scope="row"><sup>149</sup>Sm</th> <td>148.9171847(26)</td> <td>STABLE</td> <td>-</td> <td>7/2-</td> <td>-0.6718</td> <td>1218.01</td> <td>13.82</td> </tr> <tr> <th scope="row"><sup>150</sup>Sm</th> <td>149.9172755(26)</td> <td>STABLE</td> <td>-</td> <td>0+</td> <td>N/A</td> <td>1226.08</td> <td>7.38</td> </tr> <tr> <th scope="row"><sup>151</sup>Sm</th> <td>150.9199324(26)</td> <td>90(8) y</td> <td>ß<sup>-</sup> to <sup>151</sup>Eu</td> <td>5/2-</td> <td>-0.363</td> <td>1234.16</td> <td>-</td> </tr> <tr> <th scope="row"><sup>152</sup>Sm</th> <td>151.9197324(27)</td> <td>STABLE</td> <td>-</td> <td>0+</td> <td>N/A</td> <td>1242.24</td> <td>26.75</td> </tr> <tr> <th scope="row"><sup>153</sup>Sm</th> <td>152.9220974(27)</td> <td>46.284(4) h</td> <td>ß<sup>-</sup> to <sup>153</sup>Eu</td> <td>3/2+</td> <td>-0.0216</td> <td>1241</td> <td>-</td> </tr> <tr> <th scope="row"><sup>154</sup>Sm</th> <td>153.9222093(27)</td> <td>STABLE</td> <td>-</td> <td>0+</td> <td>N/A</td> <td>1249.08</td> <td>22.75</td> </tr> <tr> <th scope="row"><sup>155</sup>Sm</th> <td>154.9246402(28)</td> <td>22.3(2) min</td> <td>ß<sup>-</sup> to <sup>155</sup>Eu</td> <td>3/2-</td> <td>N/A</td> <td>1257.16</td> <td>-</td> </tr> <tr> <th scope="row"><sup>156</sup>Sm</th> <td>155.925528(10)</td> <td>9.4(2) h</td> <td>ß<sup>-</sup> to <sup>156</sup>Eu</td> <td>0+</td> <td>N/A</td> <td>1265.24</td> <td>-</td> </tr> <tr> <th scope="row"><sup>157</sup>Sm</th> <td>156.92836(5)</td> <td>8.03(7) min</td> <td>ß<sup>-</sup> to <sup>157</sup>Eu</td> <td>(3/2-)</td> <td>N/A</td> <td>1273.32</td> <td>-</td> </tr> <tr> <th scope="row"><sup>158</sup>Sm</th> <td>157.92999(8)</td> <td>5.30(3) min</td> <td>ß<sup>-</sup> to <sup>158</sup>Eu</td> <td>0+</td> <td>N/A</td> <td>1281.4</td> <td>-</td> </tr> <tr> <th scope="row"><sup>159</sup>Sm</th> <td>158.93321(11)</td> <td>11.37(15) s</td> <td>ß<sup>-</sup> to <sup>159</sup>Eu</td> <td>5/2-</td> <td>N/A</td> <td>1280.16</td> <td>-</td> </tr> <tr> <th scope="row"><sup>160</sup>Sm</th> <td>159.93514(21)#</td> <td>9.6(3) s</td> <td>ß<sup>-</sup> to <sup>160</sup>Eu</td> <td>0+</td> <td>N/A</td> <td>1288.24</td> <td>-</td> </tr> <tr> <th scope="row"><sup>161</sup>Sm</th> <td>160.93883(32)#</td> <td>4.8(8) s</td> <td>ß<sup>-</sup> to <sup>161</sup>Eu</td> <td>7/2+#</td> <td>N/A</td> <td>1296.32</td> <td>-</td> </tr> <tr> <th scope="row"><sup>162</sup>Sm</th> <td>161.94122(54)#</td> <td>2.4(5) s</td> <td>ß<sup>-</sup> to <sup>162</sup>Eu</td> <td>0+</td> <td>N/A</td> <td>1295.08</td> <td>-</td> </tr> <tr> <th scope="row"><sup>163</sup>Sm</th> <td>162.94536(75)#</td> <td>1# s</td> <td>ß<sup>-</sup> to <sup>163</sup>Eu</td> <td>1/2-#</td> <td>N/A</td> <td>1303.16</td> <td>-</td> </tr> <tr> <th scope="row"><sup>164</sup>Sm</th> <td>163.94828(86)#</td> <td>500# ms</td> <td>ß<sup>-</sup> to <sup>164</sup>Eu</td> <td>0+</td> <td>N/A</td> <td>1311.24</td> <td>-</td> </tr> <tr> <th scope="row"><sup>165</sup>Sm</th> <td>164.95298(97)#</td> <td>200# ms</td> <td>ß<sup>-</sup> to <sup>165</sup>Eu</td> <td>5/2-#</td> <td>N/A</td> <td>1310</td> <td>-</td> </tr> </tbody> </table> 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