Purity: 99.99%
Particle size: 100-325 mesh
Molecular weight:127.60
Appearance：gray powder
Melting point:452℃
Boiling point:1390℃
Relative density:6.25
Packaging: 1kg per vacuum packing
Characters: It is insoluble in water and carbon disulfide, but soluble in sulfuric acid, nitric acid, aqua regia, potassium cyanide and potassium hydroxide