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Diborane Structure

Diborane

Chemical Properties

Melting point -165°C
Boiling point -93°C
Density  0.477
Flash point -90°C
solubility  reacts with H2O
form  colorless gas
color  colorless gas; flammable
Odor Repulsive odor detectable at 1.8 to 3.5 ppm
Water Solubility  Decomposes
Merck  13,3039
Exposure limits TLV-TWA 0.11 mg/m3 (0.1 ppm) (ACGIH and OSHA); IDLH 40 ppm (NIOSH).
NIST Chemistry Reference Diborane(6)(19287-45-7)
EPA Substance Registry System Diborane (19287-45-7)

Safety Information

Hazard Codes  F+;T,T,F+,T+
Risk Statements  12-23/24/25-36/37/38-26
Safety Statements  9-16-36/37/39-45-36/37-28
RIDADR  UN 1911/1953
Autoignition Temperature 38 to 52 °C
DOT Classification 2.3, Hazard Zone A (Gas poisonous by inhalation)
HazardClass  2.3
Hazardous Substances Data 19287-45-7(Hazardous Substances Data)
Toxicity LC50 inhal (rat) 50 ppm (4 h)
PEL (OSHA) 0.1 ppm
TLV-TWA (ACGIH) 0.1 ppm
IDLA 15 ppm

Usage And Synthesis