2-Hydroxy-4-Methylacetophenone Oxime (HMAOX) as an Analytical Reagent : Part III. Studies on Nickel Chelate

Chemistry Department, M.R. Science Institute, Gujarat College, Ahmedabad-6 Manuscript received 9 December 1974; revised 29 March 1975; accepted 1 April 1975 2-Hydroxy-4-methyl acetophenone oxirne (HMAOX) has been used as a reagent for gravimetric estimation of nickel and for its separation from other ions. The precipitation of the metal by the reagent is complete between pH 5.0 to 10.0 and after drying at 120°, the composition of the precipitate corresponds to the formula Ni(C9H10O2N)2. It is also observed that by proper control of pH or by using masking agents it is possible to estimate nickel in presence of several cations. The reagent has also been used in the separation and determination of nickel in its binary mixtures with copper.

Keywords

gravimetric determination, Nickel Chelate, stoichiometry

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