Selenium of high purity high purity tellurium; tellurium dioxide; crude selenium; crude tellurium; refined bismuth; selenious acid; of ITO; anhydrous indium oxide; gallium oxide; high purity manganese carbonate; high-purity iron oxide; indium oxide ; sodium selenite; long-term supply of gallium oxide v supply tellurium ingot, tellurium powder. Tellurium symbol: Te; color: Silver; Density: 6.24 Melting Point: 449.51; Boiling Point: 988, tellurium is one of the scattered metal, there are two allotropes, a crystalline form, with silver-white metallic luster; a amorphous black powder. Brittle. The chemical nature of selenium in tellurium, tellurium dioxide in the air or oxygen in the combustion, blue flame; easy and halogen violent reaction generates tellurium halides under high temperature and hydrogen role.
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