aluminium chloride

aluminium chloride
	Aluminium(III) chloride Aluminium trichloride hexahydrate, pure (top), and contaminated with iron(III) chloride (bottom)
Aluminium trichloride dimer	Aluminium trichloride unit cell
Names
	IUPAC name Aluminium chloride
	Other names Aluminium(III) chloride; Aluminium trichloride; Trichloroaluminum
Identifiers
CAS Number	7446-70-0 (anhydrous) ; 10124-27-3 (hydrate) ; 7784-13-6 (hexahydrate) ;
3D model (JSmol)	monomer: Interactive image; dimer: Interactive image; hexahydrate: Interactive image;
ChEBI	CHEBI:30114 ;
ChemSpider	22445 ;
EC Number	231-208-1;
Gmelin Reference	1876
PubChem CID	24012;
RTECS number	BD0530000;
UNII	LIF1N9568Y ; 3CYT62D3GA (hexahydrate) ;
	InChI InChI=1S/Al.3ClH/h;31H/q+3;;;/p-3 Key: VSCWAEJMTAWNJL-UHFFFAOYSA-K ; InChI=1/Al.3ClH/h;31H/q+3;;;/p-3 Key: VSCWAEJMTAWNJL-DFZHHIFOAR;
	SMILES monomer: Cl[Al](Cl)Cl; dimer: Cl[Al-]1(Cl)[Cl+][Al-]([Cl+]1)(Cl)Cl; hexahydrate: [OH2+][Al-3]([OH2+])([OH2+])([OH2+])([OH2+])[OH2+].[Cl-].[Cl-].[Cl-];
Properties
Chemical formula	AlCl3
Molar mass	133.341 g/mol (anhydrous); 241.432 g/mol (hexahydrate);
Appearance	Colourless crystals, hygroscopic
Density	2.48 g/cm3 (anhydrous); 2.398 g/cm3 (hexahydrate);
Melting point	180 °C (356 °F; 453 K) (anhydrous, sublimes); 100 °C (212 °F; 373 K) (hexahydrate, decomposes);
Solubility in water	439 g/L (0 °C); 449 g/L (10 °C); 458 g/L (20 °C); 466 g/L (30 °C); 473 g/L (40 °C); 481 g/L (60 °C); 486 g/L (80 °C); 490 g/L (100 °C);
Solubility	Soluble in hydrogen chloride, ethanol, chloroform, carbon tetrachloride; Slightly soluble in benzene;
Vapor pressure	133.3 Pa (99 °C); 13.3 kPa (151 °C);
Viscosity	0.35 cP (197 °C); 0.26 cP (237 °C);
Structure
Crystal structure	Monoclinic, mS16
Space group	C12/m1, No. 12
Lattice constant	a = 0.591 nm, b = 0.591 nm, c = 1.752 nm
Lattice volume (V)	0.52996 nm3
Formula units (Z)	6
Coordination geometry	Octahedral (solid); Tetrahedral (liquid)
Molecular shape	Trigonal planar ; (monomeric vapour)
Thermochemistry
Heat capacity	91.1 J/(mol·K)
Std molar; entropy	109.3 J/(mol·K)
Std enthalpy of; formation	−704.2 kJ/mol
Gibbs free energy	−628.8 kJ/mol
Pharmacology
ATC code	D10AX01 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P260, P280, P301+P330+P331, P303+P361+P353, P305+P351+P338+P310, P310
NFPA 704 (fire diamond)	3 0 2
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	380 mg/kg, rat (oral, anhydrous) ; 3311 mg/kg, rat (oral, hexahydrate)
	NIOSH (US health exposure limits):
PEL (Permissible)	None
REL (Recommended)	2 mg/m3
IDLH (Immediate danger)	N.D.
Related compounds
Other anions	Aluminium fluoride; Aluminium bromide; Aluminium iodide;
Other cations	Boron trichloride; Gallium trichloride; Indium(III) chloride; Thallium(III) chloride;
Related Lewis acids	Iron(III) chloride; Boron trifluoride;
Related compounds	Magnesium chloride; Scandium(III) chloride; Yttrium(III) chloride;
	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 chloride
Clinical data
AHFS/Drugs.com	Monograph
License data	US DailyMed: aluminum chloride;
Routes of; administration	Topical
ATC code	None;
Chemical and physical data
Molar mass	0 g·mol−1