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Sigma-Aldrich

2-Methylpentane

≥95.0% (GC)

Synonym(s):

‘Isohexane’

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About This Item

Linear Formula:
CH3CH2CH2CH(CH3)2
CAS Number:
Molecular Weight:
86.18
Beilstein:
1730735
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor density

3 (vs air)

Quality Level

vapor pressure

6.77 psi ( 37.7 °C)

Assay

≥95.0% (GC)

form

liquid

autoignition temp.

583 °F

expl. lim.

7 %

impurities

≤0.5% 3-methylpentane
≤2% 2,3-dimethyl-propane

refractive index

n20/D 1.371 (lit.)
n20/D 1.371

bp

62 °C (lit.)

mp

−154 °C (lit.)

density

0.653 g/mL at 25 °C (lit.)

SMILES string

CCCC(C)C

InChI

1S/C6H14/c1-4-5-6(2)3/h6H,4-5H2,1-3H3

InChI key

AFABGHUZZDYHJO-UHFFFAOYSA-N

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Application

2-Methylpentane is mainly used as a model n-alkane in studies relating to alkane cracking, excess enthalpies and vapor-liquid equilibrium of binary alkane mixtures.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

19.4 °F - closed cup

Flash Point(C)

-7 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Isobaric Vapor? Liquid Equilibrium in the Systems 2-Methylpentane+ Methyl 1, 1-Dimethylethyl Ether,+ Ethyl 1, 1-Dimethylethyl Ether, and+ Methyl 1, 1-Dimethylpropyl Ether.
Aucejo A
Journal of Chemical and Engineering Data, 43(6), 973-977 (1998)
Alkane cracking, alkene polymerization, and Friedel?Crafts alkylation in liquids containing the acidic anions HX2?, XH (AlX4)?, XH (Al2X7)?, and Al2X7?(X= chlorine, bromine).
Xiao L
J. Mol. Catal. A: Chem., 214(1), 121-127 (2004)
Excess enthalpies for the binary systems n-octane with 2-methylpentane and 3-methylpentane.
Ameling W
Journal of Chemical and Engineering Data, 28(2), 184-186 (1983)
Andrea N Giordano et al.
The journal of physical chemistry. A, 119(15), 3545-3555 (2015-03-27)
We report the solvent-dependent dynamics of carbonyl site exchange for Fe(CO)3(η(4)-norbornadiene) (FeNBD) in a series of linear and nonlinear alkanes. The barrier to exchange is very low (∼1.5 kcal/mol), and the resulting carbonyl dynamics are rapid enough to lead to
2-Methylpentane (isohexane). CAS# 107-83-5.
J B Galvin et al.
Journal of toxicology and environmental health. Part A, 58(1-2), 81-92 (1999-10-28)

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