Gold(III) chloride

  • Hydrogen tetrachloroaurate(III)
  • Chloroauric acid
  • Tetrachloroauric(III) acid
Formula
HAuCl4
Structure
Description
Yellow hygroscopic crystals.
Uses
Photography, gold-plating, gilding glass and porcelain, production of ruby glass.

Registry Numbers and Inventories.
CAS
16903-35-8
EC (EINECS/ELINCS)
240-948-4
26 36/37/39 45
RTECS
CK6330000
RTECS class
Mutagen
UN (DOT)
3260
Merck
13,4536
Beilstein/Gmelin
53645 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
AuCl4.H
Formula mass
339.79
Density
3.9 g/cm3 (25 C)

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures. Protect from moisture. Sensitive to light.
Incompatibilities
Reducing agents.
Decomposition
Decomposes on heating to chlorine gas, hydrogen chloride and metallic gold.

Fire.
Fire fighting
Extinguish using Dry chemical powder. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
0
 
 
Reactivity
1
 

Health.
Poison_Class
3
Exposure effects
Corrosive. Causes burns. May cause sensitization by skin contact.
   Ingestion
May be harmful if swallowed.
   Inhalation
Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract. May be harmful if inhaled.
   Skin
Causes burns. May be harmful if absorbed through the skin.
   Eyes
Causes burns.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician immediately. Do not induce vomiting.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
3260
Response guide
Hazard class
8
Packing Group
III