Instability Constant of Ag(S2O3)3-2 at 25°, 35° and 45°

Department of Chemistry, Science College, Patna-5

Manuscript received 12 July 1973; accepted 19 October 1973

From the solubility of AgBr in aqueous Na₂S₂O₃ solutions, it is found that the complex formed is Ag (S₂O₃)^3-₂ and pK of Ag(S₂O₃)^3-₂ \(\rightleftharpoons\)Ag⁺\(+\)2S₂O^2-₃ is 13.83, 13.55 and 14.18 at 25°, 35° and 45°C, respectively.