Arsenic triiodide
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. See "Iodine" for the TLV of Iodides.
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 (0.01 ppm, inhalable fraction and vapor (iodides))
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
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: