Properties |
Appearance |
colorless gas at normal temperature and pressure. Colorless or light yellow transparent liquid in frozen state |
Specific gravity |
0℃/4℃,liquid state- |
1.732 |
20℃,gas state(air=1) |
3.27 |
Weight value ratio 0℃ |
kg/577.6ml |
1 |
Pound/261.9ml |
1 |
Pound/gallon (American system) |
14.44 |
Viscosity |
(centipoise,0℃): liquid |
0.35 |
(Poise,0℃): gas |
103*10-6 |
Freezing point (℃) |
-94℃ |
Boiling point(℃) |
3.5-4 |
Vapor pressure (mmHg,0℃) |
3.6℃ |
760 |
10.0℃ |
1006 |
23.3℃ |
1520 |
Volatility, volume % |
100 |
Solubility,25℃,g/100g: water (closed system) |
1.34 |
Water (open system) |
〈0.1 |
Organic solvents |
|
Specific heat,cal/g |
Solid 104.95℃ |
0.147 |
Liquid 2.43℃ |
0.1978 |
Gas 100℃ |
0.12 |
Latent heat of evaporation, boiling point, cal/g |
59.74 |
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