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| Names | |
|---|---|
| IUPAC name Chloridoaluminium[1] | |
| Other names Aluminium(I) chloride[citation needed] | |
| Identifiers | |
3D model (JSmol) | |
| ChEBI | |
| ChemSpider |
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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 |
| Related compounds | |
Related compounds | aluminium monofluoride gallium monofluoride |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Aluminium monochloride, orchloridoaluminium is themetalhalide with the formula AlCl. Aluminium monochloride as a molecule is thermodynamically stable at high temperature and low pressure only.[2] This compound is produced as a step in theAlcan process to smeltaluminium from an aluminium-richalloy. When the alloy is placed in a reactor that is heated to 1,300 °C and mixed withaluminium trichloride, a gas of aluminium monochloride is produced.[3]
It thendisproportionates into aluminium melt and aluminium trichloride upon cooling to 900 °C.
This molecule has been detected in theinterstellar medium, where molecules are so dilute that intermolecular collisions are unimportant.[4]
