| Melting point | −20-−18 °C(lit.) |
| Boiling point | 110-111 °C10 mm Hg(lit.) |
| density | 0.939 g/mL at 25 °C(lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 0.15 mm Hg ( 20 °C) |
| refractive index | n |
| FEMA | 3101 | VALERIC ACID |
| Fp | 192 °F |
| storage temp. | Store below +30°C. |
| solubility | 40g/l |
| form | Liquid |
| pka | 4.84(at 25℃) |
| color | Clear colorless to pale yellow |
| PH | 3.95(1 mM solution);3.43(10 mM solution);2.92(100 mM solution); |
| Odor Threshold | 0.000037ppm |
| explosive limit | 1.8-7.3%(V) |
| Water Solubility | 40 g/L (20 ºC) |
| Merck | 14,9904 |
| JECFA Number | 90 |
| BRN | 969454 |
| CAS DataBase Reference | 109-52-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Pentanoic acid(109-52-4) |
| EPA Substance Registry System | Valeric acid (109-52-4) |
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