The effect of surfactants on oxygen mass-transfer through the air-water interface

Research Articles


The aim of the current study was to investigate the oxygen transfer rate through the water-air interface in the presence of different concentrations of various surfactants. The surfactants used in the current study were methanol, ethanol, 1-propanol and 1-butanol. The measurements were performed with an apparatus based on the electrochemical oxygen sensor. Theresults obtained showed that the impediment to oxygen mass-transfer through the water-air interface depends on the molecular structure and concentration of the surfactant used. A simple mathematical model was proposed, which allowed us to calculate the characteristic constants of surfactantsK’ and δk starting from the experimental results.K’ is the reciprocal of the equilibrium constant of adsorption process and δk characterizes the influence of the surfactant to oxygen mass-transfer through the air-water interface.


Air-water interface oxygen mass-transfer surfactants 


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© Ecomed Publishers 2002

Authors and Affiliations

  1. 1.Institute of Physical ChemistryUniversity of TartuTartuEstonia

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