Nickel (II)-citric acid complex formation in aqueous solution : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University
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Date
1979
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Massey University
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Abstract
Titrimetric analysis of solutions of nickel(II) chloride and citric acid, H
3
L, has led to the characterization of four complexes in the acidic pH range NiL
-
, NiHL, NiH
2
L
+
, and Nil
4-
2
. Equilibrium constants for the formation of these complexes are reported. Results from a visible spectrophotometric study are analysed in terms of these four complexes. The stability and possible structures of the complexes are discussed and compared with other nickel-carboxylic acid complexes.
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Keywords
Nickel, Nickel compounds, Citric acid, Citric acid compounds