| Volatilization | The Henry's Law constant for n-pentadecane is estimated as 34.4 atm-cu m/mole(SRC) derived from its vapor pressure, 0.00492 mm Hg(1), and water solubility, 4X10-5 mg/L(2). This Henry's Law constant indicates that n-pentadecane 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 4 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 5.8 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 30 months if adsorption is considered(4). n-Pentadecane's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). n-Pentadecane is not expected to volatilize from dry soil surfaces based upon its vapor pressure(SRC).
Literature: (1) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Dhemicals: Data Compilation. Design Institute for Physical Property Data, American Institute of Chemical Engineers. Washington, DC: Taylor & Francis, (1994) (2) Yalkowsky SH et al; Handbook of Aqueous Solubility Data. 2nd ed., Boca Raton, FL: CRC Press, p. 1081 (2010) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (4) US EPA; EXAMS II Computer Simulation (1987) |
| Solubility | In water, 4.0X10-5 mg/L at 25 deg C
Literature: Yalkowsky, S.H., He, Yan, Jain, P. Handbook of Aqueous Solubility Data Second Edition. CRC Press, Boca Raton, FL 2010, p. 806
Literature: #Very soluble in ethyl ether, ethanol
Literature: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-436 |
| Soil Adsorption | Using a structure estimation method based on molecular connectivity indices(1), the Koc of n-pentadecane can be estimated to be 29,200(SRC). According to a classification scheme(2), this estimated Koc value suggests that n-pentadecane is expected to be immobile in soil. In a study conducted to mimic a spill of 1.27 L/sq-m, n-pentadecane (present in JP-4 jet fuel) was transported to a depth of 50 cm; at the end of the study (134 days), it was still detected(3).
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.11. Nov, 2012. Available from, as of Nov 11, 2015: http://www2.epa.gov/tsca-screening-tools (2) Swann RL et al; Res Rev 85: 23 (1983) (3) Ross WD et al; Environmental Fate and Biological Consequences of Chemicals Related to Air Force Activities. NTIS AD-A121 288/5. Dayton,OH: Monsanto Research Corp. pp. 173 (1982) |
Home
search mVOC
Features / Tools
mVOC Literature
Help