SILANE SiH4
General Characteristics
Silane is a noncorrsive, colorless, toxic gas that is normally pyrophoric (data has shown that Silane will not spontaneously ignite under all conditions). Silane is shipped as a compressed gas in high pressure steel cylinders.
Physical Information
Molecular Weight
32.12
Flammability Limits in air
Pyrophoric
Specific Gravity,
Gas @ 70&degF(21.1&degC),
1 atm(Air=1)
1.2
Density,
Gas @ 70&degF(21.1&degC), 1 atm
0.0824lb/ft^3 (1.32g/l)
Specific Volume,
Gas @ 70&degF(21.1&degC), 1 atm
12.14ft^3/lb (0.758l/g)
Melting Point @ 75.1 psia (518 kPa)
-303.5&degF (-186.4&degC)
Boiling Point @ 1 atm
-168.5&degF (-111.4&degC)
Critical Temperature
25.8&degF (-3.4&degC)
Critical Pressure
702.5 psia (48.4 bar)
Toxicity
PEL /TLV
5 ppm
LC50
19000 ppm