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Chemical selectivities disguised by mass diffusion. V. Mixing‐disguised azo coupling reactions . 6th communication on the selectivity of chemical processes
Author(s) -
Bourne John R.,
Crivelli Eros,
Rys Paul
Publication year - 1977
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19770600847
Subject(s) - chemistry , mixing (physics) , selectivity , product distribution , diffusion , coupling (piping) , product (mathematics) , chemical reaction , azo coupling , distribution (mathematics) , chemical physics , computational chemistry , thermodynamics , organic chemistry , catalysis , mathematical analysis , geometry , mechanical engineering , physics , quantum mechanics , engineering , mathematics
The results of this study show that, for given initial and boundary conditions, four parameters are sufficient to describe the final product distribution of azo coupling reactions influenced by mixing. This is in agreement with the prediction of the mixing‐reaction model developed previously [4] [5]. In order to explain the pH‐dependence of the measured mixing‐disguised product distribution, it is necessary to assume that a selectivity‐determining, local pH‐gradient exists even though the solution is macroscopically buffered.