Aluminium monochloride

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Aluminium monochloride
Names
IUPAC name
Aluminium monochloride[citation needed]
Systematic IUPAC name
Chloridoaluminium[1]
Other names
Aluminium(I) chloride[citation needed]
Identifiers
  • 13595-81-8 ☑Y
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:30131 ☑Y
ChemSpider
  • 4514257 ☑Y
PubChem CID
  • 5359282
Properties
AlCl
Molar mass 62.43 g·mol−1
Thermochemistry
227.95 J K−1 mol−1
-51.46 kJ mol−1
Related compounds
Related compounds
aluminium monofluoride
gallium monofluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☑Y verify (what is ☑Y☒N ?)
Infobox references

Aluminium monochloride is the metal halide with the formula AlCl. Aluminum monochloride as a molecule is thermodynamically stable at high temperature and low pressure only.[2] This compound is produced as a step in the Alcan process to smelt aluminium from an aluminium-rich alloy. When the alloy is placed in a reactor that is heated to 1,300 °C and mixed with aluminium trichloride, a gas of aluminium monochloride is produced.[3]

2Al{alloy} + AlCl3{gas} → 3AlCl{gas}

It then disproportionates into aluminium melt and aluminium trichloride upon cooling to 900 °C.

This molecule has been detected in the interstellar medium, where molecules are so dilute that intermolecular collisions are unimportant.[4]

See also

References

  1. ^ "chloridoaluminium (CHEBI:30131)". Chemical Entities of Biological Interest (ChEBI). UK: European Bioinformatics Institute. 
  2. ^ Chase, M. W.; Curnutt, J. L.; Prophet, H.; McDonald, R. A.; Syverud, A. N. (1975-01-01). "JANAF thermochemical tables, 1975 supplement". Journal of Physical and Chemical Reference Data. 4 (1): 1–176. Bibcode:1975JPCRD...4....1C. doi:10.1063/1.555517. ISSN 0047-2689. 
  3. ^ Totten, George E.; MacKenzie, D. Scott (2003). Handbook of Aluminum. CRC Press. ISBN 0-8247-0896-2. 
  4. ^ J. Cernicharo, M. Guelin (1987). "Metals in IRC+10216 - Detection of NaCl, AlCl, and KCl, and tentative detection of AlF". Astronomy and Astrophysics. 183 (1): L10–L12. Bibcode:1987A&A...183L..10C. 


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