2-METHYLPENTANE

Isohexane

107-83-5

Pentane, 2-methyl-

73513-42-5

Hexanes

2-Methyl pentane

1,1-Dimethylbutane

2-Methyl-pentane

64742-49-0

Methyl pentane

SOLVENT DEGREASER

49IB0U6MLD

43133-95-5

DTXSID4029143

CHEBI:88374

NSC-66496

Dimethylpropylmethane

iso-hexane

2-Methylpentane, analytical standard

MFCD02179311

Pentane, methyl-

HSDB 1125

EINECS 203-523-4

NSC 66496

UNII-49IB0U6MLD

i-hexane

AI3-28851

MFCD00009406

2-Methylpentane, 5.0%

KYOWASOL C 600M

KYOWAZOL C 600

2-Methylpentane, >=99%

Hexanes, Environmental Grade

Hexanes, (60% n-hexane)

CHEMBL30909

DTXCID509143

2-METHYLPENTANE [HSDB]

DTXSID20175284

(CH3)2CH(CH2)2CH3

NSC66496

Tox21_200470

WLN: 3Y1 & 1

2-Methylpentane, >=95.0% (GC)

AKOS015907782

MCULE-9604552974

NCGC00248641-01

NCGC00258024-01

CAS-107-83-5

M0382

NS00005206

A801767

Q209445

Isohexane (mixture of isomeric branched chain Hexanes)

ASTM Method D5191 Vapor Pressure - 46.7 kPa (6.77 psi)

InChI=1/C6H14/c1-4-5-6(2)3/h6H,4-5H2,1-3H

Isohexane, mixture of isomeric branched chain hexanes, < 5% n-hexane

The Henry's Law constant for 2-methylpentane is estimated as 1.7 atm-cu m/mole(SRC) derived from its vapor pressure, 211 mm Hg(1), and water solubility, 14.2 mg/L(2). This Henry's Law constant indicates that 2-methylpentane is expected to volatilize rapidly from water surfaces(3). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(3) is estimated as 3 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(3) is estimated as 4 days(SRC). 2-Methylpentane's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of 2-methylpentane from dry soil surfaces may exist (SRC) based upon a vapor pressure of 211 mm Hg(1).
Literature: (1) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Design Institute for Physical Property Data, American Institute of Chemical Engineers. New York, NY: Hemisphere Pub. Corp., 4 Vol. (1989) (2) Yalkowsky SH et al; Handbook of Aqueous Solubility Data. 2nd ed. Boca Raton, FL: CRC Press p. 320 (2010) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990)

Using a structure estimation method based on molecular connectivity indices(1), the Koc of 2-methylpentane can be estimated to be 610(SRC). According to a classification scheme(2), this estimated Koc value suggests that 2-methylpentane is expected to have low mobility in soil. A sorption experiment using lignite samples resulted in a log Kd of 2.92 for 2-methylpentane(3).
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of Nov 20, 2013: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm (2) Swann RL et al; Res Rev 85: 17-28 (1983) (3) Endo S et al; Environ Sci Technol 42: 5897-5903 (2008)