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TeO2 Tellurium Dioxide Powder


Purity

99.99%, 99.999%

Density

5.67 g/cm3

Melting Point

733 °C

Boiling Point

1,260 °C

Transparency Range

0.35 - 5.0 nm

Thermal Conductivity

30 mW/cm °C

Particle Size

D50=10-12μm

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Description
Tellurium oxide is obtained by adding sulphuric acid to an alkaline solution of tellurium´╝îit remains stable in air and burns with a green flame giving off bioxide. It is an amphoteric substance and therefore can act both as an acid or as a base depending on the solution it is in. It reacts with acids to make tellurium salts and bases to make tellurites. It can be oxidized to telluric acid or tellurates. Tellurium dioxide is used as a catalyst for rubber and for metal surface treatment, corrosion resistance, identification of bacteria in vaccines.

Specifications

Grade

ICP(OES)Inductively Coupled Plasma Optical Emission Spectroscopy

Concentration - (ppm by wt)

Element

Standard

Element

Standard

Cu

2.0

Ca

10.0

Ag

2.0

Fe

5.0

Mg

5.0

As

10.0

Sb

5.0

Al

5.0

Zn

10.0

Pb

10.0

Bi

10.0

Sn

2.0