Arsenic bromide

  • Arsenic tribromide
  • Arsenic(III) bromide
Formula
AsBr3
Structure
Description
A yellowish white crystalline solid.
Uses
Analytical chemistry, medicine.

Registry Numbers and Inventories.
CAS
7784-33-0
EC (EINECS/ELINCS)
232-057-4
RTECS
CG1375000
RTECS class
Other
UN (DOT)
1555
Merck
12,840
Beilstein/Gmelin
2235 (G)
RCRA
D004
Swiss Giftliste 1
G-1145
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
AsBr3
Formula mass
314.63
Melting point, °C
31
Boiling point, °C
109 (20 torr)
Density
3.54 g/cm3
Solubility in water
Decomposes
Viscosity
0.0168 cp (100 C)
Thermal expansion
0.00013/K
Heat of fusion
11.8 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a dry area.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability
Stable under normal temperatures and pressures. May decompose on exposure to moist air or water.
Incompatibilities
Reacts as acid to neutralize bases.
Decomposition
Hydrobromic acid, arsenic acid.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire potential
Arsenic tribromide itself does not burn or burns with difficulty.
Hazards
Containers may explode when heated. Runoff may pollute waterways.
Combustion products
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Health.
Exposure limit(s)
TLV (as As): ppm; 0.01 mg/m3 A1 (ACGIH 1997). MAK: class III A1 (1997).
Carcinogin
O, G-A1, I-1, N-1, CP65
Poison_Class
1
Exposure effects
Chronic exposure to arsenical dust may cause breath shortness, nausea, chest pains, and garlic odor.
   Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May cause excessive salivation, gastroenteritis, tremors, convulsions, muscular weakness, and possible death.
   Inhalation
Dust is irritating to the respiratory tract. May cause severe respiratory tract irritation and possible burns.
   Skin
May cause severe skin irritation with possible burns, especially if skin is wet or moist.
   Eyes
May cause eye irritation and possible burns.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1555
Response guide
Hazard class
6.1
Packing Group
II
 
Std. Transport #
4923202