Gold(III) oxide

  • Auric oxide
  • Gold sesquioxide
  • Gold trioxide
  • Sulfurous acid, ammonium gold salt
Formula
Au2O3
Structure
Description
Odorless, brown powder.

Registry Numbers and Inventories.
CAS
1303-58-8
EC (EINECS/ELINCS)
215-122-1
Merck
12,4545
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
Au2O3
Formula mass
441.93
Melting point, °C
150
Density
3.6 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry place in tightly closed containers. Store in the dark
Protection
Impervious gloves. Safety glasses. Protective work clothing.
Small spills/leaks
Pick up mechanically.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Gold can form explosive compounds with ammonia, ammonium hydroxide + aqua regia, and hydrogen peroxide.

Fire.
Fire fighting
Product is not flammable. Use fire fighting measures that suit the surrounding fire. Wear self-contained respirator. Wear fully protective impervious suit.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Gold compounds may cause irritation to the eyes and respiratory tract. Aplastic anemia may result from damage to the blood forming organs. Gold has caused tumors and reproductive effects in laboratory animals via implant, intraperitoneal and subcutaneous routes.

First aid
 
   Ingestion
Seek medical treatment.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.