Acid equilibria of methylthymol blue and formation constants of cobalt(II), nickel(II), copper(II) and zinc(II) complexes with methylthymol blue |
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| Authors: | Yoshino T Immada H Murakami S Kagawa M |
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| Affiliation: | Department of Chemical Technology, Faculty of Engineering, Yamaguchi University, Tokiwadai, Ube, Japan. |
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| Abstract: | Potentiometric and spectrophotometric studies on acid equilibria and reactions with Co(II), Ni(II), Cu(II) and Zn(II) for Methylthymol Blue (MTB) are described. The equilibrium constants have been calculated. MTB has been found to form 1:1 and 2:1 (mole ratio of metal to ligand) complexes, including protonated ones. The probable configuration of the complexes and the effects on the stabilities have been discussed. |
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