Chemistry:2-Pentanone
From HandWiki
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| Names | |
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| Preferred IUPAC name
Pentan-2-one | |
| Other names
methyl propyl ketone
2-pentanone MPK | |
| Identifiers | |
3D model (JSmol)
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| Properties | |
| C5H10O | |
| Molar mass | 86.13 g/mol |
| Appearance | Colorless liquid |
| Odor | resembling acetone |
| Density | 0.8062 g/ml (20 °C) [1] |
| Melting point | −78 °C (−108 °F; 195 K) |
| Boiling point | 102[2][1] °C (216 °F; 375 K) |
| 6% (20°C)[3] | |
| Vapor pressure | 3.6 kPa (20 °C) |
| -57.41·10−6 cm3/mol | |
Refractive index (nD)
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1.3903 (20 °C) [1] |
| Viscosity | 0.50 mPa·s (20 °C) |
| Hazards | |
| Flash point | 10 °C (50 °F; 283 K) |
| Explosive limits | 1.5%-8.2%[3] |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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1600 mg/kg (rat, oral) 1600 mg/kg (mouse, oral)[4] |
LCLo (lowest published)
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50,000 ppm (guinea pig, 50 min) 13,000 ppm (guinea pig, 5 hr)[4] |
| NIOSH (US health exposure limits): | |
PEL (Permissible)
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TWA 200 ppm (700 mg/m3)[3] |
REL (Recommended)
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TWA 150 ppm (530 mg/m3)[3] |
IDLH (Immediate danger)
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1500 ppm[3] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is   ?)
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| Infobox references | |
Tracking categories (test):
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.[5] It occurs naturally in Nicotiana tabacum (Tobacco)[6] and blue cheese as a metabolic product of Penicillium mold growth.[7]
References
- ↑ 1.0 1.1 1.2 Baird, Zachariah Steven; Uusi-Kyyny, Petri; Pokki, Juha-Pekka; Pedegert, Emilie; Alopaeus, Ville (6 Nov 2019). "Vapor Pressures, Densities, and PC-SAFT Parameters for 11 Bio-compounds". International Journal of Thermophysics 40 (11): 102. doi:10.1007/s10765-019-2570-9.
- ↑ NIST Chemistry WebBook. http://webbook.nist.gov
- ↑ 3.0 3.1 3.2 3.3 3.4 NIOSH Pocket Guide to Chemical Hazards. "#0488". National Institute for Occupational Safety and Health (NIOSH). https://www.cdc.gov/niosh/npg/npgd0488.html.
- ↑ 4.0 4.1 "2-Pentanone". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH). https://www.cdc.gov/niosh/idlh/107879.html.
- ↑ 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". http://www.webexhibits.org/butter/compounds-methylKetones.html.
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