Agent Name

Arsenic triiodide

CAS Number

7784-45-4

Formula

As-I3

Major Category

Metals

Synonyms

Arsenic iodide (AsI3); Arsenous iodide; Arsenous triiodide; Triiodoarsine; [ChemIDplus] UN1557

Category

Arsenic Compounds, Inorganic

Description

Orange red solid; Oxygen form air slowly liberates iodine; [Merck Index] Red or orange powder; [MSDSonline]

Sources/Uses

Used as a reagent and veterinary medication; [HSDB]

Comments

A skin, eye, and respiratory tract irritant; [HSDB] Highly toxic by inhalation, ingestion, and skin absorption; [CAMEO] 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

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Arsenic compound, solid, n.o.s."

Adverse Effects
Anemia

Anemia, Aplastic

Neurotoxin

Sensorimotor Neuropathy

Hepatotoxin

Hepatotoxin, Secondary

Reproductive Toxin

Yes

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: