Synergism in complex formation between cobalt(II) and thiocyanate ions in mixed solutions of cationic and nonionic surfactants

Abstract

The stabilizing effect of alkyl pyridinium cations (RPy+) on the equilibrium of formation of the tetrahedral complex [Co(SCN)4]2- in aqueous solutions of nonionic surfactants [T = Tween 20 (40), Triton X-100] disclosed for the first time, was explained by the formation of species with the composition (RPy)2[Co(SCN)4] localized in nonionic micelles. © 1999 MAHK "Hayka/Interperiodica".