Aluminium iodide

Aluminium iodide
Names
Preferred IUPAC name
Aluminium iodide
Other names
Aluminium(III) iodide

Aluminum iodide
Aluminium triiodide

Aluminum triiodide
Identifiers
  • 7784-23-8 (anhydrate) checkY
  • 10090-53-6 (hexahydrate) checkY
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.140
EC Number
  • 232-054-8
PubChem CID
UN number UN 3260
CompTox Dashboard (EPA)
SMILES
  • I[Al](I)I
  • dimer: I[Al-]1(I)[I+][Al-]([I+]1)(I)I
Properties
, (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 (370.90 °F; 461.43 K) (anhydrous)
185 °C, decomposes (hexahydrate)[1][2]
Boiling point 382 °C (720 °F; 655 K) anhydrous, sublimes[1]
very soluble, partial hydrolysis
Solubility in alcohol, ether soluble (hexahydrate)
Structure
Monoclinic, mP16
Space group
P21/c, No. 14
Lattice constant
a = 1.1958 nm

, b = 0.6128 nm

, c = 1.8307 nm
α = 90°, β = 90°, γ = 90°


Formula units (Z)
8
Thermochemistry
Std enthalpy offormation ΔfHo298 -302.9 kJ/mol
Standard molarentropy So298 195.9 J/(mol·K)
Specific heat capacity, C 98.7 J/(mol·K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

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.

Sources

  1. 1.0 1.1 1.2 1.3 1.4 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.45. ISBN 1439855110.
  2. 2.0 2.1 Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds, Second Edition. CRC Press. p. 8. ISBN 978-1-4398-1462-8.
  3. G. W. Watt, J. L. Hall (1953). Inorganic Syntheses. Vol. IV. pp. 117–119.