| Volatilization | The Henry's Law constant for 1- butene is 0.245 atm-cu m/mole(1). This Henry's Law constant indicates that 1- 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 45 minutes (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). 1-Butene's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). 1-Butene is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 2250 mm Hg(3).
Literature: (1) Yaws CL; Thermodynamics and Physical Property Data, Houston, TX: Gulf Publ Co pp. 217 (1992) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Design Inst Phys Prop Data, Amer Inst Chem Eng NY, NY: Hemisphere Pub Corp 5 Vol (1989) |
| Soil Adsorption | Using a structure estimation method based on molecular connectivity indices(1), the Koc for 1-butene can be estimated to be 44(SRC). According to a classification scheme(2), this estimated Koc value suggests that 1-butene is expected to have very high mobility in soil.
Literature: (1) Meylan WM et al; Environ Sci Technol 26: 1560-67 (1992) (2) Swann RL et al; Res Rev 85: 17-28 (1983) |
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