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Enhancement of the interfacial transfer of iodine by chemical reaction
Author(s) -
Evans Greg J.,
Ling Juliette R.
Publication year - 2000
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450780128
Subject(s) - mass transfer , mass transfer coefficient , evaporation , iodine , chemistry , absorption (acoustics) , chemical reaction , thermodynamics , analytical chemistry (journal) , materials science , chromatography , organic chemistry , physics , composite material
Enhancement of the air‐water interfacial transfer of I 2 by reaction with I − was investigated in order to evaluate a mechanistic model. Separate systems for evaporation and absorption of I 2 were studied. The overall mass transfer coefficient increased from 2 × 10 −4 to 2.5 × 10 −3 cm/s as I − concentration increased from 10 −4 to 10 −1 M. At I − concentrations greater than 10 −1 M, the interfacial transfer of I 2 was gas‐side limited. The model gave a good representation of these results.