Gold(I) chloride

Gold(I) chloride
Names
	IUPAC name Gold(I) chloride
	Other names Aurous chloride
Identifiers
CAS Number	10294-29-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30078 ;
ChemSpider	25464 ;
ECHA InfoCard	100.030.583
PubChem CID	27366;
UNII	JD7Y972WU9 ;
CompTox Dashboard (EPA)	DTXSID4065026 ;
	InChI InChI=1S/Au.ClH/h;1H/q+1;/p-1 Key: FDWREHZXQUYJFJ-UHFFFAOYSA-M ; InChI=1/Au.ClH/h;1H/q+1;/p-1 Key: FDWREHZXQUYJFJ-REWHXWOFAM;
	SMILES [Au]Cl;
Properties
Chemical formula	AuCl
Molar mass	232.423 g/mol
Appearance	yellow solid
Density	7.6 g/cm3
Melting point	210 °C (410 °F; 483 K) (decomposition)
Solubility in water	Insoluble (cold water); Reacts (warm water)
Solubility	Soluble in HCl, HBr organic solvents
Magnetic susceptibility (χ)	−67.0·10−6 cm3/mol
Structure
Crystal structure	Tetragonal, tI16
Space group	I41/amd, No. 141
Lattice constant	a = 6.734 Å, c = 8.674 Å
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	–34.7 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314, H317
NFPA 704 (fire diamond)	3 1 0
Safety data sheet (SDS)	MSDS (Fisher)
Related compounds
Other anions	Gold(I) fluoride; Gold(I) bromide; Gold(I) iodide
Other cations	Copper(I) chloride; Silver chloride
Related compounds	Gold(I,III) chloride; Gold(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

Gold(I) chloride is a compound of gold and chlorine with the chemical formula AuCl. It is a metastable yellow solid that hydrolyses in warm water and decomposes to gold and chlorine gas at elevated temperatures. It has limited uses in organic chemistry as a Lewis acid.