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Thermochemical Properties: octane
Standard thermodynamic properties of chemical compounds — standard enthalpies and Gibbs energies of formation, standard entropies and heat capacities (per phase: solid/liquid/gas), plus critical properties, vapor pressures, and enthalpy of combustion from NIST WebBook and CRC Handbook 97th Edition
| compound id | Cp gas J molK (J/molK) | Cp liquid J molK (J/molK) | Hc standard kJ mol (kJ/mol) | Hf standard kJ mol (kJ/mol) | acentric factor (dimensionless) | boiling point C (C) | cas number | critical pressure MPa (MPa) | critical temp K (K) | density kg m3 (kg/m3) | formula | melting point C (C) | molar mass g mol (g/mol) | name | state at 25C | vapor pressure kPa 25C (kPa) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| octane | 188.9 | 254.6 | -5,512.4 | -208.4 | 0.399 | 125.6 | 111-65-9 | 2.497 | 568.83 | 703 | C8H18 | -56.8 | 114.231 | Octane | liquid | 1.86 |
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