Tellurium dioxide

Tellurium dioxide

α-TeO2, paratellurite
Names
Other names
Tellurium(IV) oxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.028.357 Edit this at Wikidata
UNII
  • InChI=1S/O2Te/c1-3-2 checkY
    Key: LAJZODKXOMJMPK-UHFFFAOYSA-N checkY
  • InChI=1/O2Te/c1-3-2
    Key: LAJZODKXOMJMPK-UHFFFAOYAO
  • O=[Te]=O
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
2.24
Hazards
Flash point Non-flammable
Related compounds
Other cations
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]

  1. ^ Pradyot Patnaik (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 0-07-049439-8.
  2. ^ Greenwood NN, Earnshaw A (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 911. ISBN 978-0-08-022057-4.
  3. ^ 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