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.

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

Adverse Effects
Reproductive Toxin

Yes

Neurotoxin

Sensorimotor Neuropathy

Hepatotoxin

Hepatotoxin, Secondary

Anemia

Anemia, Aplastic

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

ACGIH Carcinogen

Confirmed Human

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: