Name | Samarium (III) oxide |
Synonyms | Samarium oxide oxygen(-2) anion Samarium(Ⅲ) oxide SAMARIUM(III) OXIDE Samarium (III) oxide samarium(+3) cation SAMARIUM(III) OXIDE, NANOPOWDER, SAMARIUM PLASMA EMISSION STANDARD SAMARIUM ATOMIC ABSORPTION STANDARD |
CAS | 12060-58-1 |
EINECS | 235-043-6 |
InChI | InChI=1/3O.2Sm/rO3Sm2/c1-4-3-5-2 |
InChIKey | PRCWVHVINXAFRG-UHFFFAOYSA-N |
Molecular Formula | O3Sm2 |
Molar Mass | 348.72 |
Density | 8.35g/mLat 25°C(lit.) |
Melting Point | 2325 °C |
Water Solubility | Insoluble in water. |
Appearance | White to bright light brown powder |
Specific Gravity | 8.347 |
Color | Violet |
Merck | 14,8347 |
PH | 8.0 (10g/l, H2O, 25℃)(slurry) |
Storage Condition | no restrictions. |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.97 |
MDL | MFCD00011237 |
Physical and Chemical Properties | Character White with slightly yellowish powder. melting point 2262 ℃ relative density 8.347 solubility insoluble in water, soluble in acid. |
Use | Materials used for samarium metal, magnetic materials and memory elements |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | VP3153000 |
FLUKA BRAND F CODES | 3-10-34 |
TSCA | Yes |
HS Code | 28469019 |
Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Raw Materials | Samarium |
Reference Show more | 1. Xing Zhihua, Bao Ran, Jiang Jingwen, et al. Synthesis of apigenin-samarium complex and its anti-hyperuricemia in mice. Research and development of natural products. 2. Ma Yuchang, Xing Zhihua, Yang Xin, et al. Research on anti-gouty arthritis activity of puerarin-rare earth complex [J]. Journal of Harbin University of Commerce (Natural Science Edition), 2018, v.34;No.151(02):14-18. |
yellowish white powder. d 8.347; Melting point 2269 °c. Insoluble in water, soluble in inorganic acids. Deliquescence, absorption of carbon dioxide and moisture in the air.
The rare earth chloride solution obtained from monazite or mixed rare earth ore is extracted, reduced by zinc powder, and europium is extracted by alkalinity method. Samarium and gadolinium are separated by mixed rare earth grouping method, and dissolved, oxalic acid was added to precipitate, separate and burn.
for electronic devices, can be used as infrared absorption and light-emitting glass additives, preparation of Samarium Cobalt Permanent magnet material, the production of metal samarium raw materials. Samarium oxide is also a catalyst in the chemical industry.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Uses | Samarium oxide is an inorganic metal compound that can be used to prepare other organic materials and catalysts. Used as a material for making metal samarium, magnetic materials and memory elements It can be used as a glass additive for infrared absorption, a coating in photosensitive materials, a samarium cobalt permanent magnet material, and a raw material for producing metal samarium. Mainly used to make metal samarium, samarium cobalt series permanent magnet materials, electronic devices and ceramic capacitors. Scientific research reagents, biochemical research It is used to manufacture samarium metal; samarium cobalt permanent magnet materials; electronic devices and ceramic capacitors; samarium cobalt alloy with high coercivity and high magnetic energy product. |
toxicity | see cerium oxide products. |
production method | extraction method to treat the rare earth chloride solution obtained from monazite or mixed rare earth ore, using P2O4-kerosene-HCl-RCl, system extraction, first Nd-samarium is grouped, samarium and heavy rare earth are extracted into organic phase, then 2.0 mo1/L HCl is used for anti-extraction of heavy rare earth, and then 5.0 mol/L HCl is used for anti-extraction of heavy rare earth. The rare earth samarium gadolinium enrichment obtained by grouping is reduced by zinc powder and europium is extracted by alkalinity method, and samarium and gadolinium are separated by mixed rare earth grouping method. After dissolution, use oxalic acid to precipitate, separate, dry, and burn to prepare samarium oxide. Its Sm2(C2Od)3 → Sm2O3 3CO2 3CO |