Acetylene
| AIR PHYSICAL PROPERTIES | ||
| US Units | SI Units | |
| Chemical formula | Air | Air |
| Molecular weight | 28.975 | 28.975 |
| Density of the gas at at 70°F (21.1°C) and 1atm | 0.07493 lb/ft3 | 1.2000 kg/m3 |
| Specific gravity of the gas 32°F (0°C)and 1 atm (air=1) | 0.0906 | 0.0906 |
| Specific volume of the gas 70°F (21.°C) and 1 atm (air=1) |
1 | 1 |
| Density of the liquid at boiling point and 1atm | 54.56 lb/ft3 | 874.0 kg/m3 |
| Boiling point at 1 atm | -317.8°F | -194.3°C |
| Freezing point at 1atm | -357.2°F | -216.2°C |
| Critical temperature | -221.1°F | -140.6°C |
| Critical pressure | 547psia | 3771 KPa, abs |
| Critical Density | 21.9 lb/ft3 | 351.6 kg/m3 |
| Solubility in water vol/vol at 32°F(15°C) | 0.0292 | 0.0292 |
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