Triethoxyarsine

  • Ethyl arsenite
  • Arsenic triethoxide
  • Triethoxyarsenic
  • Triethyl arsenite
Formula
C6H15AsO3
Structure
Uses
Sol-gel precursor. Thin films / microelectronics.

Registry Numbers and Inventories.
CAS
3141-12-6
EC (EINECS/ELINCS)
221-543-1
23/25 50/53
20/21 28 45 60 61
RTECS
CG5210000
RTECS class
Other
UN (DOT)
2929
Beilstein/Gmelin
306015 (G)
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H15AsO3
Formula mass
210.13
Boiling point, °C
162
Density
1.224 g/mL (25 C)
Refractive index
1.433 (20 C)

Hazards and Protection.
Storage
Keep tightly closed. Keep away from heat and open flame. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Cover with dry lime or soda ash, pick up, keep in a closed container, and hold for waste disposal. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Arsenic oxides.

Fire.
Flash Point,°C
49
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Emits toxic fumes under fire conditions. Combustible liquid.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Toxic by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin. Limited evidence of a carcinogenic effect. Possible carcinogen
   Ingestion
See inhalation.
   Inhalation
May be fatal. May cause irritatior or burns. Vapors may cause dizziness or suffocation.
   Skin
Causes skin irritation. Multiple Routes: May be fatal if inhaled, swallowed, or absorbed through skin. Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory tract.
   Eyes
See inhalation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
   Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Transport.
UN number
2929
Response guide
Hazard class
6.1
Packing Group
II