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Sigma-Aldrich

2-Methyl-1-propanol

99.5%

Synonym(s):

Isobutanol, Isobutyl alcohol

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About This Item

Linear Formula:
(CH3)2CHCH2OH
CAS Number:
78-83-1
Molecular Weight:
74.12
Beilstein/REAXYS Number:
1730878
EC Number:
201-148-0
MDL number:
MFCD00004740
UNSPSC Code:
12352001
PubChem Substance ID:
329758003
NACRES:
NA.21

vapor density

2.55 (vs air)

vapor pressure

8 mmHg ( 20 °C)
8.8 mmHg ( 0 °C)

assay

99.5%

form

liquid

autoignition temp.

801 °F

expl. lim.

10.6 %

impurities

≤0.05% (water)

refractive index

n20/D 1.396 (lit.)

bp

108 °C (lit.)

mp

−108 °C (lit.)

solubility

water: miscible 70 g/L at 20 °C

density

0.803 g/mL at 25 °C (lit.)

SMILES string

CC(C)CO

InChI

1S/C4H10O/c1-4(2)3-5/h4-5H,3H2,1-2H3

InChI key

ZXEKIIBDNHEJCQ-UHFFFAOYSA-N

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General description

2-Methyl-1-propanol, also known as isobutyl alcohol, is an aliphatic alcohol. The densities, viscosities and refractive indices of the binary mixtures of diglyme and 2-methyl-1-propanol have been evaluated. The partition functions and thermodynamic properties of 2-methyl-1-propanol in the vapor phase have been reported. The kinetics of dehydration of isobutyl alcohol to butene over ZSM (Zeolite Socony Mobil)-5 zeolite has been investigated using in situ FTIR (Fourier transform infrared spectroscopy) and GC. The thermochemical characteristics of radicals generated by the removal of hydrogen from 1-butanol have been studied.

application

2-Methyl-1-propanol may be used in the synthesis of corresponding ester by reacting with acetic acid in the presence of a solid superacid.

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Central nervous system, Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

82.4 °F - closed cup

flash_point_c

28 °C - closed cup

Certificates of Analysis (COA)

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Synthesis of Esters from Acetic Acid with Methanol, Ethanol, Propanol, Butanol, and Isobutyl Alcohol Catalyzed by Solid Superacid1.
Hino M and Arata K.
Chemistry Letters (Jpn), 10(12), 1671-1672 (1981)
Densities, viscosities, and refractive indices of the binary mixtures of bis(2-methoxyethyl)ether with 1-propanol, 1-butanol, 2-methyl-1-propanol, and 2-methyl-2-propanol.
Aminabhavi TM and Gopalkrishna B.
Journal of Chemical and Engineering Data, 39(4), 865-867 (1994)
Mechanistic studies of the catalytic dehydration of isobutyl alcohol on NaH-ZSM-5.
Williams C, et al.
J. Chem. Soc., Faraday Trans., 86(20), 3473-3485 (1990)
Han Li et al.
Science (New York, N.Y.), 335(6076), 1596-1596 (2012-03-31)
One of the major challenges in using electrical energy is the efficiency in its storage. Current methods, such as chemical batteries, hydraulic pumping, and water splitting, suffer from low energy density or incompatibility with current transportation infrastructure. Here, we report
D Norbäck et al.
Occupational and environmental medicine, 52(6), 388-395 (1995-06-01)
As a part of the worldwide European Community respiratory health survey, possible relations between symptoms of asthma, building characteristics, and indoor concentration of volatile organic compounds (VOCs) in dwellings were studied. The study comprised 88 subjects, aged 20-45 years, from
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