| Boiling Point | | Degree | Reference |
|---|
| 195.9 °C peer reviewed | |
|
| Volatilization | The Henry's Law constant for n-undecane is estimated as 6.1 atm-cu m/mole(SRC) derived from its vapor pressure, 0.412 mm Hg(1), and water solubility, 0.014 mg/L(2). This Henry's Law constant indicates that n-undecane 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 3.6 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 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 about 1 month if adsorption is considered(4). n-Undecane's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). n-Undecane 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 Chemicals Data Compilation. Washington, DC: Taylor and Francis (1999) (2) Shaw DG; Hydrocarbons with Water and Seawater. Part II: Hydrocarbons C8 to C36. International Union of Pure and Applied Chemistry. Solubility Data Series. Vol 38 p. 326 (1989) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington,DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (4) USEPA; EXAMS II Computer Simulation (1987) |
| Solubility | In water, 0.014 mg/L at 25 deg (critical evaluation of all available data)
Literature: Shaw DG; Hydrocarbons with Water and Seawater. Part II: Hydrocarbons C8 to C36. International Union of Pure and Applied Chemistry. Solubility Data Series. Vol 38 p. 326 (1989)
Literature: #In water, 0.0044 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: #Miscible with ethyl alcohol, ether
Literature: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-544 |
| Soil Adsorption | Using a structure estimation method based on molecular connectivity indices(1), the Koc of n-undecane can be estimated to be 2,600(SRC). According to a classification scheme(2), this estimated Koc value suggests that n-undecane is expected to have slight mobility in soil.
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.11. Nov, 2012. Available from, as of Nov 16, 2015: http://www2.epa.gov/tsca-screening-tools (2) Swann RL et al; Res Rev 85: 23 (1983) |
| Vapor Pressure | | Pressure | Reference |
|---|
| 0.412 mm Hg at 25 deg C | Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, DC: Taylor and Francis (1999) |
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