Abstract

Shikha Sharma, Pradeep Mishra and O. P. Rai^*

DOI : http://dx.doi.org/10.13005/ojc/300465

Quantitative studies of complex formation from the determination of  stability constants of the binary complexes of metal (II)/(III)- alizarin and also the mixed complexes of metal (II)/(III)- alizarin-NTA have been described using paper electrophoretic technique. The stability constant of metal-(II)/(III)-alizarin are found to be 10^5.14, 10^4.84, 10^4.44 and 10^4.14 and mixed complexes of metal (II)/(III) have been found 10^5.40,10^5.10,10^5.00 and 10^4.70 for Cr(III), Cu(II),Ni(II) and Zn(II) respectively at 35⁰C and ionic strength I=0.1 mol dm^-3 (HClO4).

Binary complexes; ternary complexes; overall mobility; stability constants; paper electrophoretic technique

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