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Title
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Spectrophotometric Study of Cobalt, Nickel, Copper, Zinc and Lead Complexes with Methylthymol Blue in Binary Water-Methanol Mixtures
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Type
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JournalPaper
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Keywords
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MTB complexes, Stoichiometry, Stability, Mixed solvent,Spectrophotometry.
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Abstract
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The complexation reactions between methylthymol blue(MTB) and Co2+ ، Ni2+ ، Cu2+ ، Zn2+ and Pb2+ ions have been studied indifferent water-methanol mixtures at pH 4.45 and 25 ـC by a spectro-photometric technique. The stepwise stability constants of the resulting 1:1and 2:1 (metal ion to ligand) complexes were determined from the absor-bance-mole ratio data. It was found that the overall stability constants ofthe complexes formed increase in the order Zn2+
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Researchers
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Mojtaba Shamsipur (Third Researcher), H. Abdollahi (Second Researcher), Raouf Ghavami (First Researcher)
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