WikipediaCAS 108-94-1
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| Skeletal formula of cyclohexanone | Ball-and-stick model of cyclohexanone |
|---|---|
| Skeletal formula viewed side-on, showing the non-planar conformation | Ball-and-stick model of cyclohexanone viewed side-on, showing the non-planar conformation |
| Names | |
| Preferred IUPAC name | Cyclohexanone |
| Other names | oxocyclohexane, pimelic ketone, ketohexamethylene, cyclohexyl ketone, ketocyclohexane, hexanon, Hydrol-O, Sextone, K, Anone |
| Identifiers | |
| CAS Number | 108-94-1 |
| EC Number | 203-631-1 |
| PubChem CID | 7967 |
| SMILES | C1CCC(=O)CC1 |
| Properties | |
| Chemical formula | C 6 H 10 O |
| Molar mass | 98.145 g · mol−1 |
| Appearance | Colorless liquid |
| Odor | Peppermint or acetone -like |
| Density | 0.9478 g/mL, liquid |
| Melting point | −47 °C (−53 °F; 226 K) |
| Boiling point | 155.65 °C (312.17 °F; 428.80 K) |
| Solubility in water | 8.6 g/100 mL (20 °C) |
| Solubility in all organic solvents | Miscible |
| log P | 0.81 |
| Vapor pressure | 5 mmHg (20 °C) |
| Magnetic susceptibility (χ) | −62.04 · 10−6 cm3/mol |
| Refractive index ( n D) | 1.447 |
| Viscosity | 2.02 cP at 25 °C |
| Thermochemistry | |
| Std molar / entropy ( S ⦵298) | +229.03 J · K−1 · mol−1 |
| Std enthalpy of / formation (Δf H ⦵298) | −270.7 kJ · mol−1 |
| Std enthalpy of / combustion (Δc H ⦵298) | −3519.3 kJ · mol−1 |
| Hazards | |
| Signal word | Danger |
| Hazard statements | H226 , H302 , H305 , H312 , H315 , H318 , H332 |
| Precautionary statements | P280 , P305+P351+P338 |
| Flash point | 44 °C (111 °F; 317 K) |
| Autoignition / temperature | 420 °C (788 °F; 693 K) |
| Explosive limits | 1.1–9.4% |
| LD50 ( median dose ) | 1200 mg/kg (cat, orally); 2362 mg/kg (rat, orally) |
| LC50 ( median concentration ) | 8000 ppm (rat, 4 hr) |
| LCLo ( lowest published ) | 4706 ppm (mouse, 1.5 hr) |
| PEL (Permissible) | TWA 50 ppm (200 mg/m3) |
| REL (Recommended) | TWA 25 ppm (100 mg/m3) [skin] |
| IDLH (Immediate danger) | 700 ppm |
| Related compounds | |
| Related ketones | Cyclopentanone , cycloheptanone |
| Related compounds | Cyclohexanol |
Wikipedia
Chemical compound
Cyclohexanone is the organic compound with the formula (CH2)5CO. The molecule consists of six-carbon cyclic molecule with a ketone functional group. This colorless oily liquid has a sweet odor reminiscent of benzaldehyde. Over time, samples of cyclohexanone assume a pale yellow color.