Gold(III) sulfide

  • Auric sulfide
  • Gold trisulfide
  • Auric sulfide
Formula
Au2S3
Structure
Description
Black powder with a slight odor.
Uses
Substance is used in photography.

Registry Numbers and Inventories.
CAS
1303-61-3
EC (EINECS/ELINCS)
215-124-2
Merck
12,4546
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Au2S3
Formula mass
490.13
Melting point, °C
200 (decomposes)
Boiling point, °C
 
Density
8.75 g/cm3
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep container tightly closed. Keep container in a cool, well-ventilated area.
Protection
Chemical-resistant, impervious gloves or gauntlets complying with an approved standard should be worn at all times when handling chemical products if a risk assessment indicates this is necessary. Safety eyewear complying with an approved standard should be used when a risk assessment indicates this is necessary to avoid exposure to liquid splashes, mists or dusts. Personal protective equipment for the body should be selected based on the task being performed and the risks involved and should be approved by a specialist before handling this product.
Respirators
Use a properly fitted, particulate filter respirator complying with an approved standard if a risk assessment indicates this is necessary. Respirator selection must be based on known or anticipated exposure levels, the hazards of the product and the safe working limits of the selected respirator.
Small spills/leaks
Vacuum or carefully scoop up spilled materials and place in an appropriate container for disposal. Avoid creating dusty conditions and prevent wind dispersal.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Acids
Decomposition
Evolves hydrogen sulfide on contact with acids.

Fire.
Fire fighting
Use an extinguishing agent suitable for surrounding fires.Fire fighters should wear appropriate protective equipment and self-contained equipment for fire-fighters breathing apparatus (SCBA) with a full face-piece operated in positive pressure mode.
Combustion products
Oxides of sulfur and some metallic oxides.

Health.
Exposure effects

First aid
 
   Ingestion
Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention if symptoms appear.
   Inhalation
If inhaled, remove to fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. Obtain medical attention.
   Skin
In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes. Wash clothing before reuse. Clean shoes thoroughly before reuse. Obtain medical attention if symptoms occur.
   Eyes
In case of contact, immediately flush eyes with a copious amount of water for at least 15 minutes. Get medical attention if irritation occurs.

Transport.