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DICHLOROSILANE SiH2Cl2  

General Characteristics
Dichlorosilane is a highly toxic, colourless, flammable and liquefied gas with a sharp, pungent odor. It hydrolyses on contact with water to form hydrochloric acid.
 
Physical Properties
Molecular Weight 100.99
Flammability Limits in air 4.1-98.8%
Specific Gravity,
Gas @ 70°F(21.1°C), 1 atm(Air=1)
3.52
Density,
Gas @ 70°F(21.1°C), 1 atm
0.26lbs/ft^3 (4.18kg/m^3)
Specific Volume,
Gas @ 70°F(21.1°C), 1 atm
3.85ft^3/lb (0.239m^3/kg)
Boiling Point @ 1 atm 46.8°F (8.2°C)
Melting Point @ 1 atm -187.6°F (-122.0°C)
Critical Temperature 348.8°F (176.0°C)
Toxicity
TLV-TWA 5 ppm
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