| Volatilization | The Henry's Law constant for trans-crotonaldehyde is 1.96X10-5 atm-cu m/mole at 25 deg C(1). This Henry's Law constant indicates that crotonaldehyde 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 40 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 15 days(SRC). Crotonaldehyde's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Crotonaldehyde is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 30 mm Hg(3).
Literature: (1) Gaffney JS et al; Environ Sci Technol 21: 519-24 (1987) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Weber RC et al; Vapor Pressure Distribution of Selected Organic Chemicals. USEPA-600/2-81-021 p. 16 (1981)
Literature: #The Henry's Law constant for (E)-crotonaldehyde has been experimentally measured to be 1.94X10-5 atm-cu m/mole at 25 deg C(1). This value indicates that (E)-crotonaldehyde will volatilize from water surfaces(2,SRC). The volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec) is estimated as approximately 1.7 days(2,SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec) is estimated as approximately 15 days(2,SRC). (E)-Crotonaldehyde's vapor pressure, 30 mm Hg(3) and Henry's Law constant(1) indicate that volatilization from dry and moist soil may occur(SRC).
Literature: (1) Hine J, Mookerjee PK; J Org Chem 40: 292-8 (1975) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods Washington, DC: Amer Chem Soc p. 15-1 to 15-29 (1990) (3) Lewis RJ Sr; Hawley's Condensed Chemical Dictionary 12th ed NY, NY: Van Nostrand Rheinhold Co pg 325 (1993) |
| Soil Adsorption | The Koc of crotonaldehyde is estimated as 6(SRC), using a water solubility of 1.81X10+5 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that crotonaldehyde is expected to have very high mobility in soil.
Literature: (1) Baxter WF JR; Kirk-Othmer Encycl Chem Tech 3rd ed NY,NY: Wiley 7: 207-18 (1979) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington DC: Amer Chem Soc pp. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 23 (1983)
Literature: #The Koc of (E)-crotonaldehyde is estimated to be approximately 6.2(SRC), using an experimental water solubility of 150,000 mg/L at 20 deg C(1) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this estimated Koc value suggests that (E)-crotonaldehyde has very high mobility in soil(SRC).
Literature: (1) Yalkowsky SH, Dannenfelser RM; Aquasol Database of Aqueous Solubility. Version 5 (1992) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods Washington, DC: Amer Chem Soc p. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 16-28 (1983) |
| Vapor Pressure | | Pressure | Reference |
|---|
| 30 mm Hg at 25 deg C | Weber RC et al; Vapor Pressure Distribution of Selected Organic Chemicals. USEPA-600/2-81-021 p. 16 (1981) | | Vapor pressure = 3.8X10+1 mm Hg at 25 deg C | Riddick, J.A., W.B. Bunger, Sakano T.K. Techniques of Chemistry 4th ed., Volume II. Organic Solvents. New York, NY: John Wiley and Sons., 1985., p. 335 |
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