• Sahadev

Articles written in Journal of Chemical Sciences

• Chelation behaviour of biologically activeo-hydroxy naphthaldehyde derivatives with bivalent metal ions in different solvents: A potentiometric study

Equilibria between the derivatives ofo-hydroxy naphthaldehyde and protons or bivalent metal ions have been investigated potentiometrically at constant ionic strength while varying the solvents in definite ratios (solvent: water). The method of Bjerrum and Calvin as modified by Irving and Rossotti (1954) has been used to find the values of$$\tilde n$$ and pL. The formation constants of metal chelates have been calculated using a weighted least squares method. The values of$$S_{\min } = \chi ^2$$ have also been calculated. The order of stability constants is determined as Mg2+&lt;Mn2+&lt;Cd2+&lt;Pb2+&lt;Zn2+&lt;Co2+&lt;Ni2+&lt;Cu2+&lt;UO22+ Solvent effects on stability constants and comparative studies of both the derivatives ofo-hydroxy naphthaldehyde have been reported.

• # Journal of Chemical Sciences

Volume 134, 2022
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