The formation constants of 2,4-dichlorophenoxyacetate for H+, Na+ and Ca2+ complexes were determined pH-metrically at 10, 25 and 45°C in the ionic strength range 0.05 ⩽ I ⩽ 1 mol 1−1. The dependence of formation constants on ionic strength and temperature was taken into account by empirical equations and estimates of ΔH were obtained. Comparisons with the stability of similar carboxylate complexes are made.
Complexing Ability of Pesticides and Related Compounds. Thermodynamic Parameters for the Formation of H+, Na+ and Ca2+ Complexes with 2,4-Dichlorophenoxyacetate in Aqueous Solution at Different Temperatures and Ionic Strengths.
CASALE, Agatino;DE ROBERTIS, Alessandro;DE STEFANO, Concetta
1988-01-01
Abstract
The formation constants of 2,4-dichlorophenoxyacetate for H+, Na+ and Ca2+ complexes were determined pH-metrically at 10, 25 and 45°C in the ionic strength range 0.05 ⩽ I ⩽ 1 mol 1−1. The dependence of formation constants on ionic strength and temperature was taken into account by empirical equations and estimates of ΔH were obtained. Comparisons with the stability of similar carboxylate complexes are made.File in questo prodotto:
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