| Volatilization | The Henry's Law constant for ethyl nitrite is estimated as 8.7X10-5 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that ethyl nitrite 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 6 days(SRC). Ethyl nitrite's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of ethyl nitrite from dry soil surfaces may exist(SRC) based upon an estimated vapor pressure of 620 mm Hg(SRC), determined from a fragment constant method(3). |
| Soil Adsorption | Using a structure estimation method based on molecular connectivity indices(1), the Koc for ethyl nitrite can be estimated to be 81(SRC). According to a classification scheme(2), this estimated Koc value suggests that ethyl nitrite is expected to have high mobility in soil. |
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