caa a22 4500 469037954 CHVBK 20180323132800.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF00808272 doi (NATIONALLICENCE)springer-10.1007/BF00808272 Stabilities of some bivalent transition metal ions with 2-hydroxy naphthaldehyde semicarbazones and thiosemicarbazones in dioxane-water mixtures: A potentiometric study [Elektronische Daten] [Sahadev,, R. Sharma, S. Sindhwani] Die Stabilitäten einiger bivalenter Übergangsmetallionen mit 2-Hydroxynaphthaldehyd-Semicarbazonen und -Thiosemicarbazonen in Dioxan-Wasser-Mischungen: Eine potentiometrische Studie Summary: Equilibria between 2-hydroxy naphthaldehyde derivatives (semicarbazone and thiosemicarbazone) and proton or some bivalent metal ions have been investigated potentiometrically at a constant ionic strength and different compositions of the mixed solvent (dioxane: water). The method of Bjerrum and Calvin [1, 2], as modified by Irving and Rossotti [3], has been used to determine the values ofn andpL. The stability constants have been calculated following Sullivan et al. [4] to give β n values. The values ofS min=χ2 have also been calculated. The order of stability constants was found to be found to be UO 2 2+ > Cu2+ > Ni2+ > Co2+ > Zn2+ > Pb2+ > Cd2+ > Mn2+ > Mg2+. The effect of varying the dielectric constant of the medium on the stability constants of the complexes has also been investigated at an ionic strength of 0.100M NaClO4 and a temperature of 20±0.5°C. Springer-Verlag, 1992 Bivalent metal ion nationallicence 2-hydroxy-1-naphthaldehyde derivatives nationallicence formation constant nationallicence potentiometry nationallicence Sahadev, Department of Chemistry, University of Delhi, 110007, Delhi, India aut Sharma R. Department of Chemistry, University of Delhi, 110007, Delhi, India aut Sindhwani S. Department of Chemistry, University of Delhi, 110007, Delhi, India aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/12(1992-12-01), 1099-1105 0026-9247 123:12<1099 1992 123 706 https://doi.org/10.1007/BF00808272 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00808272 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sahadev Department of Chemistry, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Sharma R. Department of Chemistry, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Sindhwani S. Department of Chemistry, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/12(1992-12-01), 1099-1105 0026-9247 123:12<1099 1992 123 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer