2-Pentanone
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Names
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Preferred IUPAC name
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Other names
methyl propyl ketone 2-pentanone MPK
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Identifiers
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ChEBI
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ChEMBL
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ChemSpider
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ECHA InfoCard
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100.003.208
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KEGG
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RTECS number
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UNII
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InChI=1S/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3 YKey: XNLICIUVMPYHGG-UHFFFAOYSA-N YInChI=1/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3 Key: XNLICIUVMPYHGG-UHFFFAOYAJ
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Properties
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C5H10O
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Molar mass
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86.13 g/mol
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Appearance
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Colorless liquid
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Odor
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resembling acetone
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Density
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0.8062 g/ml (20 °C) [1]
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Melting point
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−78 °C (−108 °F; 195 K)
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Boiling point
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102[2][1] °C (216 °F; 375 K)
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6% (20°C)[3]
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Vapor pressure
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3.6 kPa (20 °C)
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-57.41·10−6 cm3/mol
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1.3903 (20 °C) [1]
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Viscosity
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0.50 mPa·s (20 °C)
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Hazards
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Flash point
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10 °C (50 °F; 283 K)
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Explosive limits
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1.5%-8.2%[3]
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Lethal dose or concentration (LD, LC):
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1600 mg/kg (rat, oral) 1600 mg/kg (mouse, oral)[4]
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50,000 ppm (guinea pig, 50 min) 13,000 ppm (guinea pig, 5 hr)[4]
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NIOSH (US health exposure limits):
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TWA 200 ppm (700 mg/m3)[3]
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TWA 150 ppm (530 mg/m3)[3]
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1500 ppm[3]
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
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
- ^ a b c 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. Bibcode:2019IJT....40..102B. doi:10.1007/s10765-019-2570-9.
- ^ NIST Chemistry WebBook. http://webbook.nist.gov
- ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0488". National Institute for Occupational Safety and Health (NIOSH).
- ^ a b "2-Pentanone". Immediately Dangerous to Life or 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".