Tellurium Dioxide Powder

Tellurium Dioxide, has the symbol TeO2 is a solid oxide of tellurium. It is encountered in two different forms, the yellow orthorhombic mineral tellurite, ß-TeO2, and the synthetic, colourless tetragonal (paratellurite), a-TeO2.
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    tetragonal - white solid, orthorhombic - yellow so
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Tellurium Dioxide
CAS No.7446-7-3
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. 

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

Symbol Chemical Component
TeO2≥(%) Foreign Mat.≤ppm
Cu Pb Zn Fe As Co Bi Se Sb
UMTD3N 99.9 10 100 10 50 800 10 60 100 100

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.  

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