4N Tellurium Dioxide
4N Tellurium Dioxide
Tellurium Dioxide is white crystal. Tetragonal crystal structure, yellow when heated, it will be dark yellow red when melted, it is an amphoteric compound.
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Description
Tellurium Dioxide is white crystal. Tetragonal crystal structure, yellow when heated, it will be dark yellow red when melted, it is an amphoteric compound. Slightly soluble in water, soluble in strong acids and alkalis, and form double salts. The density is 5.49～6.02g/cm³. Melting point 733 ℃. Boiling point 1260 ℃. 450 ℃ began to sublime, prepared by the correct acid thermal decomposition. For preservation, identification of bacteria in vaccines, etc. for toxic substances.
Available forms:
4N TeO2 powder
Certificate of Analysis:
Detecting Element(%, less than) | |||||||||||||
Grade | TeO2 | Cu | Ag | Mg | Ni | Zn | Ca | Fe | Bi | Se | Pb | Na | Total |
TeO2 99.99% | ≥99.99 | 0.001 | 0.0003 | 0.0005 | 0.0005 | 0.0005 | 0.0012 | 0.001 | 0.0005 | 0.001 | 0.001 | 0.0005 | 0.01 |