Description: 
Appearance:Fragile shiny white crystalline solid or dark gray to brown amorphous powder
Properties:The relative density of 6.11 ~ 6.27. Melting point 449.8 ℃. Boiling point 989.9 ℃.
Uses:Preparation of tellurium compounds. Rubber curing and catalyst. High-speed cutting steel, cast iron additives. Manufacturing sterilization, insecticide and fungicide. Preparation of radioactive iodine isotopes. Porcelain pigment. Brightener in the electroplating solution. Glass coloring materials and added to the lead in increasing its strength and corrosion resistance.
Storage:Sealed.