3-Pentanone
3-Pentanone, also called diethyl ketone, is an organic compound. It is a ketone with five carbon atoms. It smells like acetone and is soluble in water. It is used as a solvent in paint and is used to make vitamin E.
| Names | |
|---|---|
| Preferred IUPAC name
Pentan-3-one | |
| Other names
Diethyl ketone, diethylketone, 3-pentanone, dimethyl acetone, propione, metacetone, methacetone, ethyl ketone
| |
| Identifiers | |
| Abbreviations | DEK |
| CAS number | |
| ChEBI | CHEBI:87755 |
| SMILES | O=C(CC)CC |
| Properties | |
| Molecular formula | C5H10O |
| Molar mass | 86.13 g mol-1 |
| Appearance | Colorless liquid[2] |
| Odor | Acetone-like[1] |
| Density | 0.81 g/cm3 at 20 °C[1] |
| Melting point |
-39 °C, 234 K, -38 °F |
| Boiling point | |
| Solubility in water | 35 g/L[1] |
| Vapor pressure | 35 mmHg[2] |
| -58.14·10−6 cm3/mol | |
| Hazards | |
| Explosive limits | 1.6%-6.4%[2] |
| U.S. Permissible exposure limit (PEL) |
none[2] |