Acrolein

CAS RN: 107-02-8

Volatilization

The Henry's Law constant for acrolein is 1.22X10-4 atm-cu m/mole(1). This Henry's Law constant indicates that acrolein is expected to volatilize 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 7.6 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 4.6 days(SRC). Volatilization is likely to be the major route of acrolein's dissipation from water(3). Acrolein's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Acrolein is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 274 mm Hg(4).
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