| dimethylacetic acid; isobutanoic acid; isobutyric acid; isopropylformic acid; 2-methylpropanoic acid; α-methylpropionic acid; 2-methylpropionic acid; valerianic acid | |
| Links: | 🌍 Wikipedia, 📏 NIST, 📖 PubMed, 📖Org. Chem., v. Richter, 1. Vol (Isobutyric Acid); p. 119, 258, 259 |
| CAS RN: | [79-31-2] |
| Formula: | C4H8O2; 88.11 g/mol |
| InChiKey: | KQNPFQTWMSNSAP-UHFFFAOYSA-N |
| SMILES: | CC(C)C(=O)O |
| Use: | disinfectant; preparation of esters for solvents, flavors, and bases for perfumes; tanning agent |
| Density: | 0.948 g/mL |
| Molar volume: | 92.9 mL/mol |
| Refractive index: | 1.393 |
| Molecular refractive power: | 22.17 mL/mol |
| Dielectric constant: | 2.60 |
| Dipole moment: | 1.08 D |
| Melting point: | -79 °C |
| Boiling point: | 154 °C |
| Vapour pressure: | 0 Torr |
| Antoine equation P(Torr) vs T(°C) | |
| Surface tension: | 25.08 dyn/cm |
| Critical temperature: | 336 °C |
| Critical pressure: | 40.0 atm |
| Critical volume: | 292.00 ml/mol |
| Log10 partition octanol / water: | 0.94 |
| 100g dissolves: 14g phenanthrene; 12.3g naphthalene; 10.6g 1,3-dihydroxybenzene | |
| 1g dissolves in: 3.42g water | |