System: 2-methylpropanoic acid
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| 1) 2-methylpropanoic acid |
| DECHEMA ID | 41810 |
| Formula | C4H8O2 |
| Synonym | isobutyric acid |
| Synonym | isobutanoic acid |
| Synonym | 2-methylpropionic acid |
| Synonym | α-methylpropionic acid |
| Synonym | dimethylacetic acid |
| Synonym | isopropylformic acid |
| InChi-Key | KQNPFQTWMSNSAP-UHFFFAOYSA-N |
| Registry No. | 79-31-2 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
| acentric factor Omega | - | 4 | 4 | View |
| boiling temperature | - | 8 | 12 | View |
| compressibility factor | gas | 1 | 4 | View |
| critical compressibility factor | - | 5 | 5 | View |
| critical density | - | 3 | 3 | View |
| critical pressure | - | 12 | 12 | View |
| critical temperature | - | 14 | 14 | View |
| critical volume | - | 8 | 8 | View |
| density | gas | 1 | 10 | View |
| density | liquid | 54 | 178 | View |
| dielectric constant | liquid | 5 | 17 | View |
| dipole moment | - | 1 | 1 | View |
| enthalpy of combustion | liquid | 1 | 1 | View |
| enthalpy of combustion | - | 1 | 1 | View |
| enthalpy of formation | liquid | 1 | 1 | View |
| enthalpy of formation | gas | 2 | 2 | View |
| enthalpy of fusion | - | 2 | 2 | View |
| enthalpy of fusion | solid | 1 | 1 | View |
| enthalpy of vaporization | - | 5 | 13 | View |
| fusion pressure | - | 4 | 4 | View |
| fusion temperature | - | 10 | 10 | View |
| heat capacity (cp) | solid | 1 | 4 | View |
| heat capacity (cp) | liquid | 6 | 20 | View |
| heat capacity (cp) | gas | 1 | 1 | View |
| melting point | - | 8 | 8 | View |
| molecular weight | - | 3 | 3 | View |
| normal boiling point | - | 13 | 13 | View |
| octanol/water partition coefficient | - | 1 | 1 | View |
| pressure of sublimation | - | 1 | 1 | View |
| refractive index, Na-D-line | liquid | 2 | 2 | View |
| solution conductance | liquid | 1 | 1 | View |
| sound velocity | liquid | 6 | 24 | View |
| specific gravity, sample at 20 °C related to water at 4 °C | liquid | 1 | 1 | View |
| sublimation temperature | - | 1 | 1 | View |
| surface tension | liquid | 9 | 42 | View |
| thermal conductivity | gas | 1 | 1 | View |
| thermal conductivity | liquid | 2 | 12 | View |
| UNIQUAC area parameter | - | 1 | 1 | View |
| UNIQUAC volume parameter | - | 1 | 1 | View |
| vapor pressure | - | 74 | 371 | View |
| viscosity, dynamic | gas | 1 | 1 | View |
| viscosity, dynamic | liquid | 20 | 90 | View |
| volume | liquid | 1 | 1 | View |
| volume | - | 1 | 4 | View |