3-METHYLPENTANE

96-14-0

Pentane, 3-methyl-

3-Methyl-pentane

Diethylmethylmethane

XD8O3ML76T

CHEBI:88373

NSC-66497

3-Methylpentane, analytical standard

UNII-XD8O3ML76T

HSDB 5300

3-methyl pentane

EINECS 202-481-4

NSC 66497

AI3-28852

1,2-DIMETHYLBUTENE

3-Methylpentane, >=99%

(C2H5)2CHCH3

CHEMBL357767

DTXSID8052647

NSC66497

MFCD00009342

AKOS015841880

MCULE-2542807917

DB-057623

M0383

NS00004041

Q223107

J-002021

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

Pentane, 3-methyl-; 3-Methylpentane; NSC 66497; UN 1208

The Henry's Law constant for 3-methylpentane is estimated as 1.7 atm-cu m/mole(SRC) derived from its vapor pressure, 190 mm Hg(1), and water solubility, 17.9 mg/L(2). This Henry's Law constant indicates that 3-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 57 minutes(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 3.7 days(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The estimated volatilization half-life from a model pond is 11 days if adsorption is considered(4). 3-Methylpentane's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of 3-methylpentane from dry soil surfaces may exist(SRC) based upon its vapor pressure(1).
Literature: (1) Riddick JA et al; Techniques of Chemistry. 4th ed. Volume II. Organic Solvents. New York, NY: John Wiley and Sons p. 96 (1985) (2) Yalkowsky SH, He Y, eds; Handbook of aqueous solubility data. Boca Raton, FL: CRC Press p. 321 (2003) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (4) US EPA; EXAMS II Computer Simulation (1987)

The Koc of 3-methylpentane is estimated as 2,200(SRC), using a log Kow of 3.60(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 3-methylpentane is expected to have slight mobility in soil.
Literature: (1) Sangster J; LOGKOW Databank. Sangster Res. Lab., Montreal Quebec, Canada (1994) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 17-28 (1983)