Merck
CN

537713

Sigma-Aldrich

4-甲基-2-戊酮

≥99%

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别名:
[=methyl isobutyl ketone(solvent)]甲基异丁基酮(溶剂), 异丁基甲基酮, 异丙基丙酮, 甲基异丁基酮
线性分子式:
(CH3)2CHCH2COCH3
CAS号:
分子量:
100.16
Beilstein:
605399
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

蒸汽密度

3.5 (vs air)

质量水平

蒸汽压

15.7 mmHg

检测方案

≥99%

形式

liquid

自燃温度

840 °F

expl. lim.

1.2-8 %, 93 °F

杂质

≤0.1000% (water)

折射率

n20/D 1.395 (lit.)

bp

117-118 °C

mp

−80 °C (lit.)

溶解性

water: soluble 20 g/L

密度

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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相关类别

一般描述

4-Methyl-2-pentanone (Methyl isobutyl ketone, MIBK), an aliphatic ketone, is commonly used as an organic solvent. It is generally used as an extractant in atomic absorption spectrometry. Preparation of MIBK using 2-propanol as the precursor has been reported with yield as high as 25%. The rate constant for the reaction between OH radical and MIBK was found to be 1.40 ± 0.07×1011cm3molecule-1s-1. The kinetics and mechanism of photochemical reaction of MIBK in n-hexane solution has been studied. The microwave spectrum of MIBK has been recorded to obtain its rotational constants and centrifugal distortion constants.

应用

4-Methyl-2-pentanone may be 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).

警示用语:

Danger

危险分类

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

靶器官

Central nervous system

补充剂危害

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

57.2 °F - closed cup

闪点(°C)

14 °C - closed cup

法规信息

危险化学品

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Ketone physics-structure, conformations, and dynamics of methyl isobutyl ketone explored by microwave spectroscopy and quantum chemical calculations.
Zhao Y, et al.
Chemical Physics Letters, 545, 9-13 (2012)
3-heptanone vs. 4-methyl-2-pentanone as extracting solvents in atomic absorption spectrophotometry.
Everson RJ and Parker HE.
Analytical Chemistry, 46(13), 2040-2042 (1974)
Temperature dependence of 4-methyl-2-pentanone photochemistry.
Encina MV, et al.
Journal of Photochemistry, 4(1), 75-89 (1975)
Catalytic behaviors of silica-supported starch-polysulfosiloxane-Pt complexes in asymmetric hydrogenation of 4-methyl-2-pentanone.
Huang K, et al.
Reactive functional Polymers, 50(3), 199-203 (2002)
Relative rate constant measurements for the gas-phase reactions of hydroxyl radicals with 4-methyl-2-pentanone, trans-4-octene and trans-2-heptene
O'rji LN and Stone DA.
International Journal of Chemical Kinetics, 24(8), 703-710 (1992)

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