2-Pentanone
 | |
 | |
| Names | |
|---|---|
| Preferred IUPAC name
Pentan-2-one | |
| Other names
methyl propyl ketone 2-pentanone MPK | |
| Identifiers | |
3D model (JSmol) |
|
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.003.208 |
| KEGG | |
PubChem CID |
|
| RTECS number | CY1400000 |
| UNII | |
| |
| |
| Properties | |
| C5H10O | |
| Molar mass | 86.13 g/mol |
| Appearance | Colorless liquid |
| Odor | resembling acetone |
| Density | 0.809 g/ml |
| Melting point | −78 °C (−108 °F; 195 K) |
| Boiling point | 102 °C (216 °F; 375 K) |
| 6% (20°C)[1] | |
| Vapor pressure | 3.6 kPa (20 °C) |
| -57.41·10−6 cm3/mol | |
Refractive index (nD) |
1.390 (20 °C) |
| Viscosity | 0.50 mPa·s (20 °C) |
| Hazards | |
| Flash point | 10 °C (50 °F) |
| Explosive limits | 1.5%-8.2%[1] |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
1600 mg/kg (rat, oral) 1600 mg/kg (mouse, oral)[2] |
LCLo (lowest published) |
50,000 ppm (guinea pig, 50 min) 13,000 ppm (guinea pig, 5 hr)[2] |
| US health exposure limits (NIOSH): | |
PEL (Permissible) |
TWA 200 ppm (700 mg/m3)[1] |
REL (Recommended) |
TWA 150 ppm (530 mg/m3)[1] |
IDLH (Immediate danger) |
1500 ppm[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
2-Pentanone or methyl propyl ketone (MPK) is a ketone and solvent of minor importance. It is comparable to methyl ethyl ketone, but has a lower solvency and is more expensive.[3] It occurs naturally in Nicotiana tabacum (Tobacco)[4] and blue cheese as a metabolic product of Penicillium mold growth.[5]
References
- 1 2 3 4 5 "NIOSH Pocket Guide to Chemical Hazards #0488". National Institute for Occupational Safety and Health (NIOSH).
- 1 2 "2-Pentanone". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
- ↑ Dieter Stoye (2007), "Solvents", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, pp. 55–56
- ↑ T. C. Tso (2007), "Tobacco", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 19
- ↑ "WebExhibits: Methyl ketones".
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