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Water, Air, and Soil Pollution

, Volume 17, Issue 3, pp 281–293 | Cite as

Volatilization of ketones from water

  • R. E. Rathbun
  • D. Y. Tai
Article

Abstract

The overall mass-transfer coefficients for the volatilization from water of acetone, 2-butanone, 2-pentanone, 3-pentanone, 4-methyl-2-pentanone, 2-heptanone, and 2-octanone were measured simultaneously with the oxygen-absorption coefficient in a laboratory stirred water bath. The liquid-film and gas-film coefficients of the two-film model were determined for the ketones from the overall coefficients, and both film resistances were important for volatilization of the ketones.

The liquid-film coefficients for the ketones varied with the 0.719 power of the molecular-diffusion coefficient, in agreement with the literature. The liquid-film coefficients showed a variable dependence on molecular weight, with the dependence ranging from the −0.263 power for acetone to the −0.378 power for 2-octanone. This is in contrast with the literature where a constant −0.500 power dependence on the molecular weight is assumed.

The gas-film coefficients for the ketones showed no dependence on molecular weight, in contrast with the literature where a −0.500 power is assumed.

Keywords

Molecular Weight Acetone Ketone Water Bath Power Dependence 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Co 1982

Authors and Affiliations

  • R. E. Rathbun
    • 1
  • D. Y. Tai
    • 1
  1. 1.U.S. Geological SurveyGulf Coast Hydroscience CenterNSTL StationU.S.A.

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