Arsenic trisulfide
Agent Name
Arsenic trisulfide
CAS Number
1303-33-9
Formula
As2-S3
Major Category
Metals
Synonyms
Arsenic Red; Arsenic Sulfide Yellow; Arsenic Yellow; Arsenic sesquisulfide; Arsenic sesquisulphide; Arsenic sulfide (As0.4S0.6); Arsenic sulfide (As2S3); Arsenic sulphide; Arsenic tersulfide; Arsenic tersulphide; Arsenic trisulphide; Arsenious sulfide; Arsenious sulphide; Arsenous sulfide; Auripigment; Auripigmentum; C.I. 77086; C.I. Pigment Yellow 39; CI 77086; Diarsenic trisulfide; Diarsenic trisulphide; King's Gold; Pigment Yellow 39; Sekio; Shio; Yellow arsenic sulfide; [ChemIDplus] UN1557
Category
Arsenic Compounds, Inorganic
Description
Yellow or orange solid; [Merck Index] Yellow pieces with an odor of rotten eggs; [MSDSonline]
Sources/Uses
Used to make infrared-transmitting glass, pyrotechnics, pigments, oil cloth, linoleum, electrical semiconductors, and photoconductors; Also used for depilating hides and as a reducing agent and veterinary medication; [HSDB]
Comments
Structure from ChemFinder with formula as As4-S6; Merck and Hawley same as [ChemIDplus] (As2-S3); A skin, eye, and respiratory tract irritant; [HSDB] An irritant; [MSDSonline] See "Arsenic" and the linked occupational diseases.
Biomedical References
Exposure Assessment
BEI
Inorganic arsenic plus methylated metabolites in urine = 35 ug As/L; end of workweek;
TLV (ACGIH)
0.01 mg/m3, as As
PEL (OSHA)
0.01 mg/m3, as As
IDLH (NIOSH)
5 mg/m3, as As
NFPA
will not burn
Adverse Effects
Anemia
Aplastic anemia
Neurotoxin
Sensorimotor
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Reproductive Toxin
Yes
IARC Carcinogen
Established
NTP Carcinogen
Human carcinogen
ACGIH Carcinogen
Confirmed Human
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: