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360473

Sigma-Aldrich

2-Butanone

ACS reagent, ≥99.0%

Synonyma:

Ethyl methyl ketone, MEK, Methyl ethyl ketone

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About This Item

Lineární vzorec:
C2H5COCH3
Číslo CAS:
78-93-3
Molekulová hmotnost:
72.11
Beilstein/REAXYS Number:
741880
EC Number:
201-159-0
MDL number:
MFCD00011648
UNSPSC Code:
12352115
PubChem Substance ID:
329755259
NACRES:
NA.21
grade:
ACS reagent
assay:
≥99.0%
bp:
80 °C (lit.)
vapor pressure:
71 mmHg ( 20 °C)

grade

ACS reagent

Quality Level

200

vapor density

2.49 (vs air)

vapor pressure

71 mmHg ( 20 °C)

assay

≥99.0%

form

liquid

autoignition temp.

960 °F

expl. lim.

10.1 %

dilution

(for analytical testing)

impurities

≤0.0005 meq/g Titr. acid
≤0.20% water

evapn. residue

≤0.0025%

color

APHA: ≤15

refractive index

n20/D 1.379 (lit.)

bp

80 °C (lit.)

mp

−87 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

SMILES string

CC(CC)=O

InChI

1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

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General description

2-Butanone is an organic compound that can be used in the chemical industry as an oxidative reaction activator, extractive agent, solvent, and chemical intermediate. It can be produced by the catalytic dehydrogenation of 2-butanol.

Application

2-Butanonecan be used as a solvent:
  • To synthesize waterborne polyurethanes by reacting polyols and diisocyanates via polymerization reaction.
  • In the Al-catalyzed chemoselective coupling of oxetanes and carbon dioxide to synthesize six-membered cyclic carbonates.

Features and Benefits

  • Low-boiling solvent
  • High power of dissolution
  • High ratio of dissolved matter to viscosity
  • Miscible with a wide range of hydrocarbonswithout affecting the solid′s content or viscosity
  • Favorable volume/mass ratio due to its low density
  • Fast evaporation rate

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

supp_hazards

EUH066

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

30.2 °F - closed cup

flash_point_c

-1 °C - closed cup

Vyberte jednu z posledních verzí:

Osvědčení o analýze (COA)

Lot/Batch Number
SHBR4707
SHBS3121
SHBR7842
SHBS0321
SHBS3586

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