Yttria 

 Cas No. 1314-36-9 
 Formula Y2O3 
 Molecular weight of 225.81 
 Alias ??yttrium oxygen 

 Quality standards 
 Appearance of the Appearance White, the Powder 
 X-ray diffraction analysis of the X-Ray Diffraction Conforms to Structure, 
 Purity Purity ≥ 99.999% Based on Trace Metals, Impurities of by ICP 
 Yttrium Y (Complexiometric EDTA) 77.2 - 80.3% 
 ICP: Confirms Yttrium Component Confirmed 
 Rare Earth Elements Analysis of Trace Rare Earth Analysis ≤ 20ppm by by ICP Atomic emission 

 Appearance White to slightly yellow powder, hygroscopic. Absorption of ammonia in the air quickly and replacement of ammonia from the ammonium salt. Insoluble in water and alkali; dissolved in acid, and easy to absorb carbon dioxide and water when exposed in air. The median lethal dose (rats, intraperitoneal) 500mg/kg. 
 Density: 5.03 
 Melting point: 2410 ℃ 
 Storage of air-sensitive, sealed dry preservation 
 Use manufacturing the light in the infrared spectrometer. Acetylene lamp and the gas lamp mantles. Color television tube phosphors. Zirconia refractories stabilizer. Phosphor. Artificial sapphire laser crystals, superconducting materials, and electronics industries, many state-of-the-art applications.