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- Tellurium Dioxide Powder (Te02 and TeO3) Synonyms:
Tellurium oxide, tellurium(IV) oxide, tellurium dioxide, tellurite, tellurite (TeO2), tellurium dioxide, tellurium oxide (TeO2), CPD-4544, CAS# 7446-07-3,
Chemical Name: Tellurium oxide, tellurium(IV) oxide
Chemical Formulas: Te02 and TeO3
- Tellurium Dioxide Powder (Te02 and TeO3) General Description:
a) Tellurium dioxide (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.
b) Practically insoluble in water. Available in various specific grades (technical, high purity, and radiodine)
99.0% up to 99.999%
60 mesh x down granules and 100 mesh x down powder
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Molar Mass
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159.60
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Molecular Formula
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Te02
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Density (g/cm3)
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5.8
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Specific Gravity
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5.67
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Specific Heat @25°C (cal/g-°C)
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Melting Point (°C)
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733
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Boiling Point (°C)
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1245
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Water Solubility
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insoluble
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Thermal Conductivity @20°C (cal/s-cm-°C)
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Mohs Hardness @20°C
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RTECS
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WY2675000
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Crystallography
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Appearance
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white solid
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a) Tellurium dioxide is used as an acousto-optic material.
b) Tellurium dioxide is also a conditional glass former, which means it will form a glass with small molar% additions of a second compound such as an oxide or halide. TeO2 glasses have high refractive indices and transmit into the mid-infrared part of the electromagnetic spectrum, therefore they are of technological interest for optical waveguides. Tellurite glasses have also been shown to exhibit Raman gain up to 30 times that of silica, useful in optical fibre amplification.
Drums
Listed. Harmful if swallowed or inhaled, and through skin contact. For further information please call the U.S. Environmental Protection Agency at +1.202.554.1404
CAS# 7446-07-3
3284
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