System: ethyne
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| 1) ethyne |
| DECHEMA ID | 39739 |
| Formula | C2H2 |
| Synonym | acetylene |
| Synonym | ethine |
| Synonym | narcylen |
| InChi-Key | HSFWRNGVRCDJHI-UHFFFAOYSA-N |
| Registry No. | 74-86-2 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
| 2nd virial coefficient | gas | 3 | 8 | View |
| acentric factor Omega | - | 7 | 7 | View |
| boiling temperature | - | 1 | 1 | View |
| critical compressibility factor | - | 8 | 8 | View |
| critical density | - | 6 | 6 | View |
| critical pressure | - | 37 | 38 | View |
| critical temperature | - | 54 | 55 | View |
| critical volume | - | 25 | 25 | View |
| density | solid | 1 | 1 | View |
| density | - | 1 | 1 | View |
| density | liquid | 14 | 97 | View |
| density | gas | 4 | 73 | View |
| dielectric constant | liquid | 2 | 2 | View |
| dielectric constant | gas | 2 | 17 | View |
| enthalpy | liquid | 1 | 15 | View |
| enthalpy | gas | 3 | 56 | View |
| enthalpy function (-H(298)) | gas | 1 | 62 | View |
| enthalpy of combustion | gas | 1 | 1 | View |
| enthalpy of formation | gas | 6 | 106 | View |
| enthalpy of fusion | - | 5 | 5 | View |
| enthalpy of sublimation | - | 4 | 14 | View |
| enthalpy of vaporization | - | 7 | 19 | View |
| entropy | liquid | 1 | 15 | View |
| entropy | gas | 6 | 81 | View |
| equilibrium constant of formation | gas | 2 | 102 | View |
| free energy function (-E(298)) | gas | 1 | 62 | View |
| free energy of formation | gas | 1 | 62 | View |
| free enthalpy function (-H(0)) | gas | 3 | 77 | View |
| free enthalpy of formation | gas | 2 | 2 | View |
| fusion pressure | - | 5 | 5 | View |
| fusion temperature | - | 7 | 7 | View |
| heat capacity (cp) | gas | 12 | 205 | View |
| heat capacity (cp) | liquid | 3 | 16 | View |
| melting point | - | 6 | 6 | View |
| normal boiling point | - | 19 | 19 | View |
| octanol/water partition coefficient | - | 2 | 2 | View |
| pressure of sublimation | - | 15 | 212 | View |
| refractive index, Na-D-line | - | 1 | 1 | View |
| sound velocity | gas | 1 | 2 | View |
| sublimation temperature | - | 19 | 226 | View |
| surface tension | liquid | 6 | 32 | View |
| thermal conductivity | liquid | 1 | 11 | View |
| thermal conductivity | gas | 10 | 31 | View |
| triple point | - | 1 | 1 | View |
| triple point pressure | - | 3 | 3 | View |
| triple point temperature | - | 3 | 3 | View |
| vapor pressure | - | 22 | 140 | View |
| viscosity, dynamic | liquid | 1 | 11 | View |
| viscosity, dynamic | gas | 18 | 228 | View |
| volume | liquid | 1 | 1 | View |
| volume | gas | 2 | 2 | View |
| volume | solid | 1 | 1 | View |
| volume | - | 1 | 1 | View |