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7784-45-4

Name ARSENIC(III) IODIDE
CAS 7784-45-4
EINECS(EC#) 232-068-4
Molecular Formula AsI3
MDL Number MFCD00014170
Molecular Weight 455.64
MOL File 7784-45-4.mol

Chemical Properties

Appearance red powder
Melting point  146 °C
Boiling point  403 °C
density  4.69 g/mL at 25 °C(lit.)
Fp  424°C
solubility  slightly soluble in H2O, ethanol, ethyl ether; soluble in benzene. toluene
form  Powder
color  red
Specific Gravity 4.39
Water Solubility  Soluble in alcohol, ether, Carbon disulfide, water(6 g/100 m).
Sensitive  Moisture Sensitive
Merck  14,803
Dielectric constant 7.0(150℃)
Exposure limits ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 5 mg/m3; Ceiling 0.002 mg/m3
CAS DataBase Reference 7784-45-4(CAS DataBase Reference)
EPA Substance Registry System Arsenous triiodide (7784-45-4)

Safety Data

Hazard Codes  T,N
Risk Statements 
R23/25:Toxic by inhalation and if swallowed .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S20/21:When using, do not eat, drink or smoke .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 1557 6.1/PG 1
WGK Germany  3
RTECS  CG1950000
TSCA  Yes
HazardClass  6.1
PackingGroup  II
Safety Profile
Inorganic compounds are confirmed human carcinogens producing tumors of the mouth, esophagus, larynx, bladder, and paranasal sinus. Recognized carcinogens of the skin, lungs, and liver. Used as insecticides, herbicides, silvicides, defoliants, desiccants, and rodenticides. Poisoning from arsenic compounds may be acute or chronic. Acute poisoning usually results from swallowing arsenic compounds; chronic poisoning from either swallowing or inhaling. Acute allergic reactions to arsenic compounds used in medical therapy have been fairly common, the type and severity of reaction depending upon the compound. Inorganic arsenicals are more toxic than organics. Trivalent is more toxic than pentavalent. Acute arsenic poisoning (from ingestion) results in marked irritation of the stomach and intestines with nausea, vomiting, and darrhea. In severe cases, the vomitus and stools are bloody and the patient goes into collapse and shock with weak, rapid pulse, cold sweats, coma, and death. Chronic arsenic poisoning, whether through ingestion or inhalation, may manifest itself in many different ways. There may be disturbances of the digestive system such as loss of appetite, cramps, nausea, constipation, or diarrhea. Liver damage may occur, resulting in jaundice. Disturbances of the blood, kidneys, and nervous system are not infrequent. Arsenic can cause a variety of skin abnormalities including itching, pigmentation, and even cancerous changes. A characteristic of arsenic poisoning is the great variety of sympt-oms that can be produced. Dangerous; when heated to decomposition, or when metallic arsenic contacts acids or acid fumes, or when water solutions of arsenicals are in contact with active metals such as Fe, Al, or Zn, highly toxic fumes of arsenic are emitted.
Hazardous Substances Data 7784-45-4(Hazardous Substances Data)

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