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360511

Sigma-Aldrich

4-Methyl-2-pentanone

ACS reagent, ≥98.5%

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Synonym(s):
Isobutyl methyl ketone, Isopropylacetone, MIBK, Methyl isobutyl ketone
Linear Formula:
(CH3)2CHCH2COCH3
CAS Number:
Molecular Weight:
100.16
Beilstein:
605399
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

3.5 (vs air)

vapor pressure

15.7 mmHg ( 20 °C)

Assay

≥98.5%

form

liquid

autoignition temp.

840 °F

expl. lim.

1.2-8 %, 93 °F

impurities

≤0.002 meq/g Titr. acid
≤0.100% water

evapn. residue

≤0.0050%

color

APHA: ≤15
clear

refractive index

n20/D 1.395 (lit.)

bp

117-118 °C

mp

−80 °C (lit.)

density

0.801 g/mL at 25 °C (lit.)

SMILES string

CC(C)CC(C)=O

InChI

1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3

InChI key

NTIZESTWPVYFNL-UHFFFAOYSA-N

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This Item
MX1300293261W273104
4-Methyl-2-pentanone ACS reagent, ≥98.5%

Sigma-Aldrich

360511

4-Methyl-2-pentanone

Essential Grade
4-Methyl-2-pentanone Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

MX1300

4-Methyl-2-pentanone

-
4-Methyl-2-pentanone suitable for HPLC, ≥99.5%

Sigma-Aldrich

293261

4-Methyl-2-pentanone

-
4-Methyl-2-pentanone ≥99%, FCC

Sigma-Aldrich

W273104

4-Methyl-2-pentanone

-
vapor density

3.5 (vs air)

vapor density

3.5 (vs air)

vapor density

3.5 (vs air)

vapor density

3.5 (vs air)

vapor pressure

15.7 mmHg ( 20 °C)

vapor pressure

-

vapor pressure

15.7 mmHg

vapor pressure

-

assay

≥98.5%

assay

≥98.5% (GC)

assay

≥99.5%

assay

≥99%

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

840 °F

autoignition temp.

840 °F

autoignition temp.

840 °F

autoignition temp.

840 °F

General description

4-Methyl-2-pentanone (Methyl isobutyl ketone (MIBK)) is an organic solvent widely used in various industrial applications. It is used as a solvent for gums, resins, paints, varnishes, lacquers, and nitrocellulose. It is also used as a denaturant and solvent in cosmetic products.

Application

4-Methyl-2-pentanone is used:
  • To prepare (R)-(-)-4-methyl-2-pentanol via asymmetric hydrogenation in the presence of silica-supported starch-polysulfosiloxane-platinum complex (SiO2-ST-Si-S-Pt).
  • In the preparation of jet-fuel-range alkene [C10 and C11 branched alkanes] via aldol condensation reaction with furfural followed by hydrodeoxygenation reaction.
  • Extracting agent for silver, gold and other rare elements from cyanide solutions.

Features and Benefits

4-Methyl-2-pentanone or Methyl isobutyl ketone (MIBK) commonly used diluent or extractant due to its,
  • Low density
  • Viscosity.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Carc. 2 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

57.2 °F - closed cup

Flash Point(C)

14 °C - closed cup


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