3-Heptanone

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3-Heptanone
Identifiers
CAS number 106-35-4 YesY
PubChem 24901132
ChemSpider 7514 YesY
EC number 203-388-1
UN number 1224
MeSH 3-Heptanone
RTECS number MJ5250000
Beilstein Reference 506161
Jmol-3D images Image 1
Properties
Molecular formula C7H14O
Molar mass 114.19 g mol−1
Appearance Colorless liquid
Density 0.812 g cm-3
Melting point −39 °C; −38 °F; 234 K
Boiling point 146 to 149 °C; 295 to 300 °F; 419 to 422 K
Hazards
MSDS [1]
R-phrases R10, R22
S-phrases S23
Flash point 41 °C; 106 °F; 314 K
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references


3-Heptanone (butyl ethyl ketone), is a seven carbon ketone. It is a colorless liquid with a "green odor," also described to have a fruity scent. It is often used as a perfume/fragrance, as a solvent for cellulose, nitrocellulose, or vinyl resins, and as a synthetic building block in the preparation of other organic molecules.[2]

Preparation

3-Heptanone is produced industrially through reductive condensation of propanal with 2-butanone. This reaction does not immediately yield 3-Heptanone. Rather it results in the production of a ketone with an alkene group. This alkene can be removed with hydrogenation.

CH3CH2CHO + CH3C(O)CH2CH3 --> CH3CH2C(O)CH=CHCH2CH3 + H2 --> CH3CH2C(O)CH2CH2CH2CH3

References

  1. http://www.chemicalbook.com/ProductMSDSDetailCB0852672_EN.htm External MSDS
  2. Siegel, Hardo; Eggersdorfer (2012). "Ketones". Ullman's Encyclopedia or Industrial Chemistry 20: 195. doi:10.1002/14356007.a15_077. 
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