GOLD (I) CHLORIDE

Synonym(s):Aurous chloride;Gold monochloride

CAS NO.：10294-29-8
Empirical Formula: AuCl
Molecular Weight: 232.42
MDL number: MFCD00046175
EINECS: 233-655-8
SAFETY DATA SHEET (SDS)
Update Date: 2024-08-28 13:53:27

What is GOLD (I) CHLORIDE?

Chemical properties

Yellow orthorhombic crystals; density 7.6 g/cm3; decomposes on heating at about 298°C; loses its stoichiometric composition at 170°C; very slightly soluble in cold water; decomposes in hot water; soluble in hydrochloric and hydrobromic acids, and alkali cyanide solutions.

Physical properties

Yellow orthorhombic crystals; density 7.6 g/cm³; decomposes on heating at about 298°C; loses its stoichiometric composition at 170°C; very slightly soluble in cold water; decomposes in hot water; soluble in hydrochloric and hydrobromic acids, and alkali cyanide solutions.

The Uses of GOLD (I) CHLORIDE

Gold(I) chloride is used as a starting material for the preparation of Phosphine ligated gold(I) complexes, which is used as catalysts in synthetic chemistry. It is also used to prepare metallic gold and potassium auric bromide and potassium chloride.

Preparation

Gold(I) chloride is prepared by thermal decomposition of gold trichloride: AuCl3 AuCl + Cl2.

General Description

The structure of gold chloride is monoclinic. It sublimes at elevated temperatures.

Properties of GOLD (I) CHLORIDE

Melting point:	289 °C (dec.)(lit.)
Density	7.57 g/mL at 25 °C(lit.)
storage temp.	Inert atmosphere,2-8°C
form	Powder
color	Yellow to green
Specific Gravity	7.57
Water Solubility	Very slightly soluble in water. soluble in HCl, HBr organic solvents.
Sensitive	Moisture Sensitive
Merck	14,4515
Solubility Product Constant (Ksp)	pKsp: 12.7
CAS DataBase Reference	10294-29-8(CAS DataBase Reference)
EPA Substance Registry System	Gold chloride (AuCl) (10294-29-8)

Safety information for GOLD (I) CHLORIDE

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H314:Skin corrosion/irritation H317:Sensitisation, Skin
Precautionary Statement Codes	P260:Do not breathe dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.