Aluminium monochloride
Appearance
Names | |
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IUPAC name
Aluminium monochloride[citation needed]
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Systematic IUPAC name
Chloridoaluminium[1] | |
Other names
Aluminium(I) chloride[citation needed]
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
AlCl | |
Molar mass | 62.43 g·mol−1 |
Thermochemistry | |
Std molar
entropy (S⦵298) |
227.95 J K-1 mol-1 |
Std enthalpy of
formation (ΔfH⦵298) |
-51.46 kJ mol-1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Aluminium monochloride is the metal halide with the formula AlCl. 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.[2]
- 2[Al]{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.[3]
References
- ^ "chloridoaluminium (CHEBI:30131)". Chemical Entities of Biological Interest (ChEBI). UK: European Bioinformatics Institute.
- ^ Totten, George E. (2003). Handbook of Aluminum. CRC Press. ISBN 0-8247-0896-2.
{{cite book}}
: Unknown parameter|coauthors=
ignored (|author=
suggested) (help) - ^ 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.