trans-2-Butene

2-BUTENE

624-64-6

(E)-But-2-ene

Pseudobutylene

Butene-2

but-2-ene

beta-Butylene

trans-Butene

(E)-2-Butene

Butylene-2

2-BUTENE, (E)-

2-trans-Butene

trans-but-2-ene

beta-trans-Butylene

107-01-7

Low-boiling butene-2

2-Butene, (2E)-

trans-1,2-Dimethylethylene

(2E)-2-Butene

(2E)-but-2-ene

CH3CH=CHCH3

017NGL487F

68956-54-7

Dimethylethylene

beta-Butene

.beta.-Butylene

Butene, 2-

2-Butene-trans

CCRIS 8971

HSDB 180

EINECS 203-452-9

BRN 1718755

UNII-017NGL487F

UNII-S1SK37516R

MFCD00064458

HSDB 5723

trans-But-2-en

2-Buten

e-but-2-ene

EINECS 210-855-3

EINECS 273-307-2

2-Butene, trans-

2-Butene,(2E)-

2-Butenes, cis & trans

E-2-BUTENE

E-.BETA.-BUTYLENE

EC 203-452-9

2-BUTENE (E)-FORM

trans-2-Butene, >=99%

3-01-00-00732 (Beilstein Handbook Reference)

.BETA.-BUTYLENE, E-

TRANS-2-BUTENE [HSDB]

DTXSID7027255

CHEBI:48363

CHEBI:48365

S1SK37516R

2-BUTENE (E)-FORM [MI]

AKOS025295555

(E)-2-C4H8

B0691

NS00007689

Q27121170

The Henry's Law constant for 2-butene is estimated as 1.54X10-1 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that 2-butene is expected to volatilize rapidly from water surfaces(2). 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)(2) is estimated as 2 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)(2) is estimated as 3 days(SRC). 2-Butene's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). 2-Butene is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 1600 mm Hg at 25 °C(3).

The Koc of 2-butene is estimated as 40(SRC), using a log Kow of 1.85(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2-butene is expected to have very high mobility in soil.