HYDROGEN BROMIDE HBr
General Characteristics
Hydrogen Bromide is a colorless, corrosive, irritating, nonflammable, toxic gas with a suffocating odor. It is shipped as a liquefied gas in steel cylinders under its own vapor pressure.
Physical Information
Molecular Weight
80.914
Flammability Limits in air
Nonflammable
Specific Gravity,
Gas @ 70&degF(21.1&degC),
1 atm(Air=1)
2.79
Density,
Gas @ 70&degF
(21.1&degC), 1 atm
0.209lb/ft^3 (3.35g/l)
Specific Volume,
Gas @ 70&degF
(21.1&degC), 1 atm
4.78 ft^3/lb (0.30l/g)
Melting Point @ 75.1 psia
(518 kPa)
-124.35&degF (-86.86&degC)
Boiling Point @ 1 atm
-88.1&degF (-66.72&degC)
Critical Temperature
193.6&degF (89.8&degC)
Critical Pressure
1234.5 psia (85.1 bar)
Toxicity
PEL/TLV
3 ppm

LC50RAT
2880 ppm
IDLH
50 ppm