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 α-TeO2, paratellurite
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| Names | |
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| Other names
Tellurium(IV) oxide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.028.357 |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| TeO2 | |
| Molar mass | 159.60 g/mol |
| Appearance | white solid |
| Density | 5.670 g/cm3(orthorhombic) 6.04 g/cm3 (tetragonal) [1] |
| Melting point | 732 °C (1,350 °F; 1,005 K) |
| Boiling point | 1,245 °C (2,273 °F; 1,518 K) |
| negligible | |
| Solubility | soluble in acid and alkali |
Refractive index (nD)
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2.24 |
| Hazards | |
| Flash point | Non-flammable |
| Related compounds | |
Other cations
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Sulfur dioxide Selenium dioxide |
| Tellurium trioxide Tellurium monoxide | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tellurium dioxide (TeO2) is a solid oxide of tellurium. It is encountered in two different forms, the yellow orthorhombic mineral tellurite, β-TeO2, and the synthetic, colourless tetragonal (paratellurite), α-TeO2.[2] Most of the information regarding reaction chemistry has been obtained in studies involving paratellurite, α-TeO2.[3]
- ^ Pradyot Patnaik (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 0-07-049439-8.
- ^ Greenwood NN, Earnshaw A (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 911. ISBN 978-0-08-022057-4.
- ^ W.R.McWhinnie (1995) Tellurium - Inorganic chemistry Encyclopedia of Inorganic Chemistry Ed. R. Bruce King (1994) John Wiley & Sons ISBN 978-0-471-93620-6