spectrophotometric study of cobalt, nickel, copper, zinc and lead complexes with methylthymol blue in binary water-methanol mixtures
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abstract
the complexation reactions between methylthymol blue (mtb) and co2+, ni2+, cu2+, zn2+ and pb2+ ions have been studied in different water-methanol mixtures at ph 4.45 and 25 °c by a spectrophotometric technique. the stepwise stability constants of the resulting 1:1 and 2:1 (metal ion to ligand) complexes were determined from the absorbance-mole ratio data. it was found that the overall stability constants of the complexes formed increase in the order zn2+
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.................................................................................................................................. iii LIST OF FIGURES ....................................................................................................................... vi LIST OF TABLES ...............................................................................................................
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Journal title:
iranian journal of chemistry and chemical engineering (ijcce)Publisher: iranian institute of research and development in chemical industries (irdci)-acecr
ISSN 1021-9986
volume 16
issue 1 1997
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