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34861

Sigma-Aldrich

2-Butanone

suitable for HPLC, ≥99.7%

Synonym(s):

Ethyl methyl ketone, MEK, Methyl ethyl ketone

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About This Item

Linear Formula:
C2H5COCH3
CAS Number:
78-93-3
Molecular Weight:
72.11
Beilstein:
741880
EC Number:
201-159-0
MDL number:
MFCD00011648
UNSPSC Code:
41116105
eCl@ss:
39021202
PubChem Substance ID:
329755070
Pricing and availability is not currently available.

vapor density

2.49 (vs air)

Quality Level

100

vapor pressure

71 mmHg ( 20 °C)

Assay

≥99.7%

form

liquid

autoignition temp.

960 °F

expl. lim.

10.1 %

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as CH3COOH)
≤0.001% non-volatile matter
≤0.1% water (Karl Fischer)

evapn. residue

≤0.001%

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General description

Physical properties of the solutions of 1-n-butyl-3-methylimidazolium tetrafluoroborate (ionic liquid) in various organic solvents (acetonitrile, dichloromethane, 2-butanone and N,N-dimethylformamide) has been studied. Viscosity and density of these mixtures were evaluated at 298.15K.[1]

Application

2-Butanone may be employed as a solvent for the methylation agent [11C]methyl trifluoromethanesulfonate ([11C]CH3OTf), during the completely automated radiosynthesis of 2-(4-N-[11C]methylaminophenyl)-6-hydroxybenzothiazole ([11C]PIB).[2]

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Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H319,H336

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

EUH066

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

30.2 °F - closed cup

Flash Point(C)

-1 °C - closed cup

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    Methyl ethyl ketone United States Pharmacopeia (USP) Reference Standard

    USP

    1430101

    Methyl ethyl ketone

    A volumetric and viscosity study for the mixtures of 1-n-butyl-3-methylimidazolium tetrafluoroborate ionic liquid with acetonitrile, dichloromethane, 2-butanone and N, N-dimethylformamide.
    Wang J, et al.
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    C Philippe et al.
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