Aluminium iodide

Aluminium iodide
Names
	Preferred IUPAC name Aluminium iodide
	Other names Aluminium(III) iodide; Aluminum iodide; Aluminium triiodide; Aluminum triiodide
Identifiers
CAS Number	7784-23-8 (anhydrate) ; 10090-53-6 (hexahydrate) ;
3D model (JSmol)	Interactive image; dimer: Interactive image;
ChemSpider	74202 (anhydrate) ;
ECHA InfoCard	100.029.140
EC Number	232-054-8;
PubChem CID	82222 (anhydrate);
UN number	UN 3260
CompTox Dashboard (EPA)	DTXSID0064838 ;
	SMILES I[Al](I)I; dimer: I[Al-]1(I)[I+][Al-]([I+]1)(I)I;
Properties
Chemical formula	AlI3, AlI3⋅6H2O (hexahydrate)
Molar mass	407.695 g/mol (anhydrous) ; 515.786 g/mol (hexahydrate)
Appearance	white (anhydrous) or yellow powder (hexahydrate)
Density	3.98 g/cm3 (anhydrous) 2.63 g/cm3 (hexahydrate)
Melting point	188.28 °C (370.90 °F; 461.43 K) (anhydrous) ; 185 °C, decomposes (hexahydrate)
Boiling point	382 °C (720 °F; 655 K) anhydrous, sublimes
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 α = 90°, β = 90°, γ = 90° ;
Formula units (Z)	8
Thermochemistry
Std enthalpy of; formation ΔfHo298	-302.9 kJ/mol
Standard molar; entropy 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).
	verify (what is ?)
	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, or the action of hydrogen iodide on aluminium metal.

Sources

1 2 3 4 5 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.45. ISBN 1439855110.
1 2 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.

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[b92-1] 1 2 3 4 5 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.45. ISBN 1439855110.

[Perry2016-2] 1 2 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.

Names


Preferred IUPAC name Aluminium iodide
Other names Aluminium(III) iodide Aluminum iodide Aluminium triiodide Aluminum triiodide
Identifiers
CAS Number	7784-23-8 (anhydrate)^Y 10090-53-6 (hexahydrate)^Y
3D model (JSmol)	Interactive image dimer: Interactive image
ChemSpider	74202 (anhydrate)^Y
ECHA InfoCard	100.029.140
EC Number	232-054-8
PubChem CID	82222 (anhydrate)
UN number	UN 3260
CompTox Dashboard (EPA)	DTXSID0064838

SMILES I[Al](I)I dimer: I[Al-]1(I)[I+][Al-]([I+]1)(I)I
Properties
Chemical formula	$A l I_{3}$ , $A l I_{3} \cdot 6 H_{2} O$ (hexahydrate)
Molar mass	407.695 g/mol (anhydrous) 515.786 g/mol (hexahydrate)
Appearance	white (anhydrous) or yellow powder (hexahydrate)
Density	3.98 g/cm³ (anhydrous) 2.63 g/cm³ (hexahydrate)
Melting point	188.28 °C (370.90 °F; 461.43 K) (anhydrous) 185 °C, decomposes (hexahydrate)
Boiling point	382 °C (720 °F; 655 K) anhydrous, sublimes
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 α = 90°, β = 90°, γ = 90°
Formula units (Z)	8
Thermochemistry
Std enthalpy of formation Δ_fH^o₂₉₈	-302.9 kJ/mol
Standard molar entropy S^o₂₉₈	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 ^YN ?)
Infobox references