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33064

Sigma-Aldrich

2-Methyl-1-propanol

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99% (GC)

Synonym(s):

Isobutanol, Isobutyl alcohol

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About This Item

Linear Formula:
(CH3)2CHCH2OH
CAS Number:
Molecular Weight:
74.12
Beilstein:
1730878
EC Number:
MDL number:
UNSPSC Code:
12352001
PubChem Substance ID:

grade

ACS reagent
puriss. p.a.

Quality Level

Agency

reag. Ph. Eur.

vapor density

2.55 (vs air)

vapor pressure

8 mmHg ( 20 °C)
8.8 mmHg ( 0 °C)

Assay

≥99% (GC)

form

liquid

autoignition temp.

801 °F

expl. lim.

10.6 %

impurities

≤0.001% non-volatile matter
≤0.001% peroxides (as H2O2)
≤0.004% free acid (as C3H7COOH)
≤0.005% iso-butyraldehyd (GC)
≤0.005% n-butyraldehyde (GC)
≤0.02% butanone
≤0.05% 2-butanol
≤0.05% water (Karl Fischer)
≤0.1% 1-butanol

refractive index

n20/D 1.3950-1.3960
n20/D 1.396 (lit.)

bp

108 °C (lit.)

mp

−108 °C (lit.)

density

0.803 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

CC(C)CO

suitability

passes test for reaction against H2SO4

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 (Isobutyl alcohol) is widely used organic solvent.

Application

2-Methyl-1-propanol (Isobutyl alcohol) may be used to prepare the isobutyl alcohol-benzene solution for use in the quantification of inorganic phosphates. It may be used for the estimation of phosphate (inorganic phosphorous) by a colorimetric method.

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Central nervous system, Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

82.4 °F - closed cup

Flash Point(C)

28 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Determination of inorganic phosphate.
Martin JB and Doty DM.
Analytical Chemistry, 21(8), 965-967 (1949)
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
Jan-Karl Guterl et al.
ChemSusChem, 5(11), 2165-2172 (2012-10-23)
The limited supply of fossil resources demands the development of renewable alternatives to petroleum-based products. Here, biobased higher alcohols such as isobutanol are versatile platform molecules for the synthesis of chemical commodities and fuels. Currently, their fermentation-based production is limited

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