Silicon tetrabromide

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Silicon tetrabromide
Other names Tetrabromosilane
Identifiers
InChI InChI=1/Br4Si/c1-5(2,3)4
InChIKey AIFMYMZGQVTROK-UHFFFAOYAY
Standard InChI InChI=1S/Br4Si/c1-5(2,3)4
Standard InChIKey AIFMYMZGQVTROK-UHFFFAOYSA-N
CAS number [7789-66-4]
EC number 232-182-4
ChemSpider 74225
Properties[1][2]
Chemical formula SiBr4
Molar mass 347.70 g mol−1
Appearance colourless liquid
Density 2.7715 g cm−3
Melting point

5 °C

Boiling point

153 °C

Solubility in water reacts violently
Thermochemistry[3]
Std enthalpy of formation ΔfHo298 −457.31 kJ mol−1
Standard molar entropy So298 278.24 J K−1 mol−1
Related compounds
Other anions Silicon tetrafluoride
Silicon tetrachloride
Silicon tetraiodide
Other cations Carbon tetrabromide
Germanium tetrabromide
Tin tetrabromide
Lead tetrabromide
Other compounds Bromosilane
Dibromosilane
Tribromosilane
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Silicon tetrabromide, SiBr4, is a colourless liquid that fumes in moist air. It is produced from the reaction of silicon with bromine vapour at 600 °C,[1] and is used in the production of high-purity silicon.[4]

Notes and references

Notes

References

  1. 1.0 1.1 Ukeles, S. D.; Freiberg, M. Bromine, Inorganic Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology; John Wiley: New York, 2002. DOI: 10.1002/0471238961.021815131001031.
  2. CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-143. ISBN 0-8493-0462-8.
  3. Silicon tetrabromide. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/Br4Si/c1-5(2,3)4>. (accessed 8 January 2011).
  4. Ihara, Yoshinao; Ogawa, Nobuhiro (Tosoh Corp.) 高純度シリコンの製造方法 (Production of high-purity silicon). JP Patent 63129011, published 1 June 1988.

External links

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