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2-Pentanone facts for kids

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2-Pentanone
Other names methyl propyl ketone
2-pentanone
MPK
Identifiers
CAS number 107-87-9
PubChem 7895
KEGG C01949
ChEBI CHEBI:16472
RTECS number CY1400000
SMILES O=C(C)CCC
Properties
Molecular formula C5H10O
Molar mass 86.13 g/mol
Appearance Colorless liquid
Odor resembling acetone
Density 0.809 g/ml
Melting point

-78 °C, 195 K, -108 °F

Boiling point

102 °C, 375 K, 216 °F

Solubility in water 6% (20°C)
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%
U.S. Permissible
exposure limit (PEL)
TWA 200 ppm (700 mg/m3)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

2-pentanone, or methyl propyl ketone (MPK), is an organic compound. It is a ketone and is very similar to butanone, but it is more expensive to make. Because of this, it isn't used as a solvent as often as butanone. Some of it is found in tobacco.

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