Volatilization | The Henry's Law constant for 4-vinylcyclohexene is estimated as 4.5X10-2 atm-cu m/mole(SRC), derived from its vapor pressure, 15.7 mm Hg(1), and water solubility, 50 mg/l(2). This Henry's Law constant indicates that 4-vinylcyclohexene 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 1.1 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 4.1 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 19 days if adsorption is considered(4). 4-Vinylcyclohexene's estimated Henry's Law constant(1,2) indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of 4- vinylcyclohexene from dry soil surfaces may exist(SRC) based upon a vapor pressure of 15.7 mm Hg(1). |
Soil Adsorption | The Koc of 4-vinylcyclohexene is estimated as 3300(SRC), using a measured log Kow of 3.93(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 4-vinylcyclohexene is expected to have slight mobility in soil(SRC). |