MSE PRO Samarium (III) Oxide (Sm2O3) 99.99% 4N Powder

SKU: PO4102

  • $ 13595
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Samarium (III) Oxide, Sm2O3, 99.99% 4N High Purity Powder

  • Product Number: PO4101 (500g), PO4102 (100 g), PO4103 (1 kg)
  • Formula: Sm2O3
  • CAS Number: 12060-58-1
  • Molecular Weight: 348.72  g/mol
  • Density: 8.347 g/cm³ at 25°C
  • Melting Point: 2335°C
  • Color: Light yellow powder
  • Solubility: Insoluble in water.
  • Purity: 99.99% 4N (Sm2O3/TREO*)
* TREO - Total Rare Earth Oxides


    Samarium(III) oxide, Sm2O3 is used in optical and infrared absorbing glass to absorb infrared radiation. It finds use as a neutron absorber in nuclear power reactors to control the reaction. It is also used as a catalyst for the dehydration of primary alcohols to aldehydes or ketones. It has specialized uses in glass, phosphors, lasers, and thermoelectric devices.

    Notes: More detailed product information including SDS, certificate of analysis (COA), lead time and volume pricing are available upon request. 

    Rare Earth Impurities Content (ppm)

    Non- Rare Earth Impurities Content (ppm)

     Pr6O11  <10.0

    Fe2O3   <3.0

     Nd2O3   <35.0

    SiO2   <30.0

     Eu2O3  <10.0

    CaO    <50.0

     Gd2O3   <10.0

    Cl-   <200.0

      Y2O3   <10.0

    Al2O3 <100.0

     Other rare earth oxide total <25.0

    Others <25.0



     1. Effect of Sm2O3 modification on Li[Li0.2Mn0.56Ni0.16Co0.08]O2 cathode material for lithium ion batteries, Electrochim. Acta, Volume 108, 1 October 2013, Pages 441-448

     2. High performance Ni–Sm2O3 cermet anodes for intermediate-temperature solid oxide fuel cells, J. Power Sources, Volume 187, Issue 2, 15 February 2009, Pages 400-402

     3.  Effects of Li Doping on MgO-Supported Sm2O3 and TbOx Catalysts in the Oxidative Coupling of Methane, ACS Catal. 2014, 4, 6, 1972–1990