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Oxidation‐reduction reactions in stirred liquid‐liquid systems
Author(s) -
Mansoori G. A.,
Madden A. J.
Publication year - 1969
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690150222
Subject(s) - cerium , chemistry , redox , aqueous solution , kinetic energy , mixing (physics) , volume (thermodynamics) , liquid liquid , inorganic chemistry , reaction rate , liquid phase , phase (matter) , limiting , chemical reaction , ion , chemical engineering , thermodynamics , chromatography , organic chemistry , catalysis , physics , quantum mechanics , engineering , mechanical engineering
Abstract Oxidation‐reduction rates have been determined in stirred liquid‐liquid systems wherein tetravalent cerium ions in a continuous aqueous phase were reduced by tetrachlorohydroquinone contained in dispersed organic droplets. Kinetic data obtained (using low volume fractions (<0.06) of dispersed organic phase) indicate that the rate of reduction of ceric cerium is proportional to the extent of the interfacial area of the stirred liquid‐liquid system. Two possible rate‐limiting mechanisms are discussed to explain the observed kinetic behavior. This liquid‐liquid electron exchange system might find potential use as a chemical tool for measuring changes in interfacial area as influenced by various mixing parameters.