Acetone , or propanone , is an organic compound with the chemical formula (CH3 )2 CO . 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 .
Quick facts Names, Identifiers ...
Acetone[ 1]
Full structural formula of acetone with dimensions
Skeletal formula of acetone
Ball-and-stick model of acetone
Space-filling model of acetone
Names
Preferred IUPAC name
Other names
Acetone
Dimethyl ketone[ 3]
Dimethyl carbonyl
β-Ketopropane[ 3]
Propanone[ 4]
2-Propanone[ 3]
Dimethyl formaldehyde[ 5]
Pyroacetic spirit (archaic)[ 6]
Ketone propane[ 7]
Identifiers
3D model (JSmol )
3DMet
Beilstein Reference
635680
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard
100.000.602
EC Number
Gmelin Reference
1466
KEGG
MeSH
Acetone
RTECS number
UNII
UN number
1090
Properties
C 3 H 6 O
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)[ 8]
Boiling point
56.05 °C (132.89 °F; 329.20 K)[ 8]
Miscible
Solubility
Miscible in benzene , diethyl ether , methanol , chloroform , ethanol [ 9]
log P
-0.16[ 10]
Vapor pressure
9.39 kPa (0 °C) 30.6 kPa (25 °C) 374 kPa (100 °C) 2.8 MPa (200 °C)[ 3]
Acidity (pK a )
−33.78·10−6 cm3 /mol
1.3588 (V D = 54.46)
Viscosity
0.295 mPa·s (25 °C)[ 9]
Structure
Trigonal planar at C2
Dihedral at C2
2.91 D
Thermochemistry
Std enthalpy of formation Δf H o 298
(−250.03) – (−248.77) kJ/mol
Std enthalpy of combustion Δc H o 298
−1.772 MJ/mol
Standard molar entropy S o 298
200.4 J/(mol·K)
Specific heat capacity , C
125.45 J/(mol·K)
Hazards
NFPA 704
Explosive limits
2.6–12.8%[ 13]
U.S. Permissible exposure limit (PEL)
1000 ppm (2400 mg/m3 )[ 7]
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).
Y verify (what is Y N ?)
Infobox references
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