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Tellurium
Dioxide
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CAS No.7446-7-３
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Tellurium dioxide (compound)
is a kind of oxide of tellurium. Its chemical formula is the compound of
TeO2. Its crystal belongs to square crystal series. Molecular weight: 159.61;
white powder or blocks.
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About Tellurium Dioxide
The main resultant of tellurium burning in the air is tellurium dioxide. Tellurium dioxide can barely solve in water but can completely solve in concentrated sulfuric acid. Tellurium dioxide shows instability with powerful acid and powerful oxidant. As tellurium dioxide is amphoteric matter, it can react to acid or alkaline in the solution.
As tellurium dioxide has a very high possibility of causing deformity and is poisonous, when absorbed into the body, it can produce an odor (tellurium smell) similar to the smell of garlic in the breath. This kind of matter is the dimethyl tellurium generated by the metabolism of tellurium dioxide.
High Grade Tellurium Dioxide Powder Specification
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Symbol
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Chemical
Component
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TeO2≥(%)
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Foreign Mat.≤ppm
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Cu
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Pb
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Zn
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Fe
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As
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Co
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Bi
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Se
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Sb
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UMTD3N
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99.9
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10
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100
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10
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50
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800
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10
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60
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100
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100
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Packaging: paper bag (25KG)
Wha is Tellurium Dioxide Powder used for?
Tellurium dioxide is used as an acousto-optic material and a conditional glass former. Tellurium dioxide is also used in the manufacturing of II-VI compound semi-conductor, thermal-electricity conversion components, cooling components, piezoelectric crystal and ultra-red detector.
