Boron triiodide

  • Boron iodide
  • Triiodoboron
  • Triiodoborane
Formula
BI3
Structure
Description
needles

Registry Numbers and Inventories.
CAS
13517-10-7
EC (EINECS/ELINCS)
236-857-4
23/24 34
26 36/37/39 45
UN (DOT)
3260
Beilstein/Gmelin
26236 (G)
Swiss Giftliste 1
G-7031
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
BI3
Formula mass
391.52
Melting point, °C
43
Boiling point, °C
210
Vapor pressure, mmHg
0.29 (25 C)
Density
3.3 g/cm3 (50 C)
Solubility in water
Insoluble
Dielectric constant
5.38
Heat of vaporization
40.5 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Store under nitrogen. Incompatible Materials: Do not allow contact with water
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Faceshield (8-inch minimum).
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
Water, Strong oxidizing agents, Alcohols, Phosphorus, Phosphorus halides, Ammonia.
Decomposition
Hydrogen iodide, Boron oxides.

Fire.
Flash Point,°C
-18
Fire fighting
Extinguish using 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
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Toxic. Toxic by inhalation, in contact with skin and if swallowed. Causes burns. Reacts violently with water.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   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. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

Transport.
UN number
3260
Response guide
Hazard class
8
Packing Group
II