Aluminium iodide
Aluminium iodide is any chemical compound made up of only aluminium and iodine. It is formed by the reaction of aluminium and iodine,[3] or the action of hydrogen iodide on aluminium metal.
| Aluminium iodide | |
|---|---|
| |
| |
Aluminium iodide | |
| Other names | Aluminium(III) iodide Aluminum iodide |
| Identifiers | |
| CAS number | |
| PubChem | |
| EC number | 232-054-8 |
| SMILES | I[Al](I)I |
| Properties | |
| Molecular formula | [math]\displaystyle{ AlI_3 }[/math], [math]\displaystyle{ AlI_3\cdot6H_2O }[/math] (hexahydrate) |
| Molar mass | 407.695 g/mol (anhydrous) 515.786 g/mol (hexahydrate)[1] |
| Appearance | white (anhydrous) or yellow powder (hexahydrate)[1] |
| Density | 3.98 g/cm3 (anhydrous)[1] 2.63 g/cm3 (hexahydrate)[2] |
| Melting point |
188.28 °C, 461 K, 371 °F |
| Boiling point | |
| Solubility in water | very soluble, partial hydrolysis |
| Solubility in alcohol, ether | soluble (hexahydrate) |
| Structure | |
| Crystal structure | Monoclinic, mP16 |
| Space group | P21/c, No. 14 |
| Lattice constant | a = 1.1958 nm, b = 0.6128 nm, c = 1.8307 nm |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
-302.9 kJ/mol |
| Standard molar entropy S |
195.9 J/(mol·K) |
| Specific heat capacity, C | 98.7 J/(mol·K) |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Sources
- ↑ 1.0 1.1 1.2 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.45. ISBN 1439855110.
- ↑ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds, Second Edition. CRC Press. p. 8. ISBN 978-1-4398-1462-8.
- ↑ G. W. Watt, J. L. Hall (1953). Inorganic Syntheses. Vol. IV. pp. 117–119.
