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| Names | |||
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| Preferred IUPAC name
Propan-2-one | |||
Other names
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| Identifiers | |||
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3D model (JSmol) |
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| 3DMet | |||
| Beilstein Reference | 635680 | ||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.000.602 | ||
| EC Number |
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| Gmelin Reference | 1466 | ||
| KEGG | |||
| MeSH | Acetone | ||
PubChem CID |
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| RTECS number |
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| UNII | |||
| UN number | 1090 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| C3H6O | |||
| Molar mass | 58.08 g·mol−1 | ||
| Appearance | Colorless liquid | ||
| Odor | Pungent, irritating, floral, cucumber like | ||
| Density | 0.7845 g/cm3 (25 °C) | ||
| Melting point | −94.7 °C (−138.5 °F; 178.5 K) | ||
| Boiling point | 56.05 °C (132.89 °F; 329.20 K) | ||
| Miscible | |||
| Solubility | Miscible in benzene, diethyl ether, methanol, chloroform, ethanol | ||
| log P | -0.16 | ||
| Vapor pressure |
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| Acidity (pKa) |
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| −33.78·10−6 cm3/mol | |||
Refractive index (nD) |
1.3588 (VD = 54.46) | ||
| Viscosity | 0.295 mPa·s (25 °C) | ||
| Structure | |||
| Trigonal planar at C2 | |||
| Dihedral at C2 | |||
| 2.91 D | |||
| Thermochemistry | |||
| Std enthalpy of formation ΔfH |
(−250.03) – (−248.77) kJ/mol | ||
| Std enthalpy of combustion ΔcH |
−1.772 MJ/mol | ||
| Standard molar entropy S |
200.4 J/(mol·K) | ||
| Specific heat capacity, C | 125.45 J/(mol·K) | ||
| Hazards | |||
| GHS labelling: | |||
| Danger | |||
| H225, H319, H336, H373 | |||
| P210, P235, P260, P305+P351+P338 | |||
| NFPA 704 (fire diamond) | |||
| Flash point | −20 °C (−4 °F; 253 K) | ||
| 465 °C (869 °F; 738 K) | |||
| Explosive limits | 2.6–12.8% | ||
Threshold limit value (TLV) |
1185 mg/m3 (TWA), 2375 mg/m3 (STEL) | ||
| Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) |
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LC50 (median concentration) |
20,702 ppm (rat, 8 h) | ||
LCLo (lowest published) |
45,455 ppm (mouse, 1 h) | ||
| NIOSH (US health exposure limits): | |||
PEL (Permissible) |
1000 ppm (2400 mg/m3) | ||
REL (Recommended) |
TWA 250 ppm (590 mg/m3) | ||
IDLH (Immediate danger) |
2500 ppm | ||
| Related compounds | |||
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
| Infobox references | |||
Acetone, or propanone, is an organic compound with the chemical formula (CH3)2CO. This clear, mobile, easy-to-burn liquid is the simplest example of the ketones. Acetone can be mixed with water. It is an important solvent, often to clean things in the laboratory. Common uses of acetone in the home are as the active ingredient in nail polish remover and as paint thinner. It is a common building block in organic chemistry.
Like most ketones, acetone is a tautomer of an enol, 2-propenol. When mixed with water, it can also form a geminal diol hydrate, 2,2-propanediol. These compounds are much less stable than acetone, with less than 0.1% of chemical species being in the enol or diol form in most solutions.[source?]