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Study of the effects of concentration and pH on the dissociation kinetics of Fe(II)‐fulvic acid complexes
Author(s) -
Rey Francisco,
Calle Emilio,
Casado Julio
Publication year - 1998
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/(sici)1097-4601(1998)30:1<63::aid-kin8>3.0.co;2-s
Subject(s) - chemistry , fulvic acid , dissociation (chemistry) , reagent , kinetics , kinetic energy , inorganic chemistry , metal , organic chemistry , humic acid , fertilizer , physics , quantum mechanics
The effects of reagent concentration and the pH in the kinetic behavior of the dissociation of Fe(II)‐fulvic acid complexes were studied using a spectrophotometric technique. The results show that this behavior is not strongly affected by the concentration of fulvic acid, the concentration of the metal cation on the ratio of these concentrations and that variations in pH are more important in the dissociation process. A possible explanation based in the relative influence of proton concentration on the stability of the complexes is proposed. © 1998 John Wiley & Sons, Inc. Int J Chem Kinet: 30: 63–67,1998.