Acrylonitrile

CAS RN:107-13-1

Volatilization

The Henry's Law constant for acrylonitrile is 1.38X10-4 atm-cu m/mole(1). This Henry's Law constant indicates that acrylonitrile 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 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 days(SRC). Acrylonitrile's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of acrylonitrile from dry soil surfaces may exist(SRC) based upon a vapor pressure of 109 mm Hg(3). The actual evaporation rate for acrylonitrile spilled on the ground should be appreciable(4).
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