Gallium(III) sulfide

  • Digallium trisulfide
  • Gallium sesquisulfide
Formula
Ga2S3
Structure
Description
Pale yellow to black monoclinic crystals.

Registry Numbers and Inventories.
CAS
12024-22-5
EC (EINECS/ELINCS)
234-692-2
22 26 27 36/37/39 45
UN (DOT)
3260
Beilstein/Gmelin
35179 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
Ga2S3
Formula mass
235.64
Melting point, °C
1095
Density
3.65 g/cm3 (25 C)
Heat of fusion
11.0 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Handle and store under nitrogen. Incompatible Materials: Avoid contact with acid.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Faceshield (8-inch minimum).
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
Acids, Strong bases, Strong oxidizing agents.
Decomposition
Sulfur oxides, Hydrogen sulfide gas.

Fire.
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Unsuitable: Do not use water. 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.
Exposure effects
Corrosive. Causes burns.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

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
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

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