Simultaneously refined id and E1/2 Values for determining Stability Constants by Indirect Technique

Department of Chemistry, University of Kashmir, Srinagar-190 006

Manuscript received 21 March 1984, revised 11 April 1985, accepted 25 June 1986

The stability constants of Zn^II—Na₂S₂O₂ system determined by indirect ion technique were β1 - 20, β₂ - 220 and β₃ - 340 and β₄ resulted in a negative value. Cd^II was selected as indicator ion. The simultaneous refinement of E_1/2 and i_d by computation evaluation were used in calculating β values. The polarographic procedure was modified to include mere accuracy and sensitivity compared to the conventional technique.