Indium arsenide

  • Indium monoarsenide
Formula
InAs
Structure
Description
Odorless, gray granules.
Uses
Substance is used in semiconductor electronics.

Registry Numbers and Inventories.
CAS
1303-11-3
EC (EINECS/ELINCS)
215-115-3
EC Index Number
033-002-00-5
R 23/25
S 20/21 28 45
RTECS
NL1300000
UN (DOT)
1557
Merck
12,4982
Canada DSL/NDSL
DSL
US TSCA
Listed

Properties.
Formula
AsIn
Formula mass
189.74
Melting point, °C
936
Boiling point, °C
 
Density
5.67 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Store under lock and key and with access restricted to technical experts or their assistants only.
Protection
Impervious gloves, safety glasses and protective work clothing.
Respirators
Use suitable respirator when high concentrations are present. Refer to 29CFR1910.1018 for regulations on respiratory protection required during exposure to inorganic arsenic.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Oxidizing agents.
Decomposition
Toxic metal oxide fumes.

Fire.
Fire fighting
Use fire fighting measures that suit the surrounding fire. Wear self-contained respirator. Wear fully protective impervious suit.
Fire potential
Product is not flammable.
Combustion products
Toxic metal fumes.

Health.
Exposure limit(s)
USA PEL (respirable) 0.01 mg/m3 (as As)
Exposure effects
Acute arsenic poisoning from ingestion results in marked irritation of the stomach and intestines with nausea, vomiting and diarrhea. 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 may cause disturbances of the digestive system such as loss of appetite, cramps, nausea, constipation or diarrhea. Exposure to indium compounds may cause pain in the joints and bones, tooth decay, nervous and gastrointestinal disorders, heart pain and general debility. Experiments with animals also indicate that indium may cause reduced food and water consumption with weight loss, pulmonary edema, pneumonia, blood, liver and kidney damage, leg paralysis and damage to the brain, heart, adrenals and spleen.
   Inhalation
Causes irritation.
   Skin
Causes irritation.
   Eyes
Causes irritation.

First aid
 
   Ingestion
Do not induce vomiting; immediately call for medical help. Seek immediate medical advice.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor

Transport.
UN number
1557
Response guide
Hazard class
6.1
Packing Group
III