Bismuth sulfide

  • Dibismuth trisulfide
  • Bismuth sesquisulfide
Formula
Bi2S3
Structure
Description
Black-brown orthorhombic crystals

Registry Numbers and Inventories.
CAS
1345-07-9
EC (EINECS/ELINCS)
215-716-0
36/37/38
26 37/39
RTECS
EB3105000
RTECS class
Other
UN (DOT)
3335
Merck
12,1329
Beilstein/Gmelin
11109 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Bi2S3
Formula mass
514.16
Melting point, °C
763
Decomposition point, °C
745
Density
6.81 g/cm3
Solubility in water
Insoluble
Heat of fusion
37.7 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong acids, Strong oxidizing agents.
Decomposition
Hydrogen sulfide gas.

Fire.
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
May burn but does not ignite readily.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Irritant. Irritating to eyes, respiratory system and skin.
   Inhalation
Inhalation of material may be harmful.
   Skin
Contact may cause burns.
   Eyes
See Skin.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.
UN number
3335
Response guide
Hazard class
9
Packing Group
III