Tellurium Dioxide

Tellurium dioxide is white square or orthorhombic crystalline powder, which show yellow when heating and dark yellow red when melting. It is slightly soluble in water and soluble strong acid and strong alkali.

Tellurium Dioxide

Purity: 99.999%

CAS No.:7446-07-3EINECS No.:231-193-1Molecular Formula:TeO2Molecular Weight:159.60
Melting Point:733℃Boiling Point:1245℃Density:5.75 


Tellurium(IV) oxide powder act as electronic element material and antiseptic substance. TeO2 also apply to make tellurite that is for bacterial detection in vaccine.

Tellurous acid anhydride apply to emission spectral analysis. TeO2 is also raw material for II-VI group compounds semiconductor, thermoelectric conversion parts and refrigeration components. It plays a role in piezo-electric crystal and infrared detector too. 

Tellurous dioxide is mainly for preparing acousto-optic deflection parts.