CHELATION STUDY OF COPPER (II): FULVIC ACID SYSTEM
- 1 November 1973
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Soil Science
- Vol. 53 (4) , 377-382
- https://doi.org/10.4141/cjss73-054
Abstract
The chelation reaction between Cu (II) and fulvic acid has been investigated using a relatively new direct approach — that of titration with a cupric ion-selective electrode. The results of different investigators are in fair agreement with each other if they are interpreted in terms of both pH and mole fraction of reactants. In 0.1 M sodium nitrate solutions with a copper mole fraction equal to 0.5 ± 0.2, the equilibrium quotient at 25 C and pH 3 was found to be 2.2 ± 0.1.Keywords
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