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Abstract
The stoichiometries of the complexes originated by the furfuryliminodiacetic acid with the ion Cu(II) have been found to be 1: 1 and 2: 1 (reagent: Cu). Three new analytical methods are proposed for conductimetric and photometric titration of Cu(II) and for spectrophotometric determination of that ion. The methods are of applicability in the range of concentration 16-130 ppm. 35-150 ppm and 4 . 10-3 M; and the average errors are 0,5%, 0,5% and 0,7% respectively.
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