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n-Butane
Chemical, Physical and Thermal Properties of n-Butane
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Chemical, physical and thermal properties of n-Butane - C4H10 :
| Molecular Weight | 58.12 |
| Specific Gravity | 2.07 |
| Specific Volume (ft3/lb, m3/kg) | 6.5, 0.405 |
| Density of liquid at atmospheric pressure (lb/ft3, kg/m3) | 37.5, 604 |
| Vapor pressure at 25oC (psia, MN/m2) | 35.4, 0.0244 |
| Absolute Viscosity (lbm/ft s, centipoises) | 4.8 10-6, 0.007 |
| Sound velocity in gas (m/s) | 216 |
| Specific Heat - cp - (Btu/lboF or cal/goC, J/kgK) | 0.39, 1675 |
| Specific Heat Ratio - cp/cv | 1.096 |
| Gas constant - R - (ft lb/lboR, J/kgoC) | 26.56, 143 |
| Thermal Conductivity (Btu/hr ft oF, W/moC) | 0.01, 0.017 |
| Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - (oF, oC) | 31.2, -0.4 |
| Latent Heat of Evaporation at boiling point (Btu/lb, J/kg) | 165.6, 386000 |
| Freezing or Melting Point at 1 atm (oF, oC) | -217, -138 |
| Latent Heat of Fusion (Btu/lb, J/kg) | 19.2, 44700 |
| Critical Temperature (oF, oC) | 306, 152 |
| Critical Pressure (psia, MN/m2) | 550, 3.8 |
| Critical Volume (ft3/lb, m3/kg) | 0.070, 0.0043 |
| Flammable | yes |
| Heat of combustion (Btu/ft3, Btu/lb, kJ/kg) | 3300, 21400, 49700 |
- values at 25oC (77oF, 298 K) and atmospheric pressure
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