Acid Dissociation Constants of Some 3-Substituted 2-hydroxy-5-methylacetophenones and the Formation Constants of their Metal Complexes

Department of Chemistry, Sardar Patel University, Vallahh Vidyana.gar-388120 Manucript received 5 April 1974; revised 4 October 1974; accepted 30 December 1974 Acid dissociation constants of some 3-substituted 2-hydroxy-5-methylacetophenones and the formation constants of their complexes with Cu( Ni(II), Coll) and Zn(II) have been determined at 400 in aqueous dioxane medium containing 50% dioxane by volume and 0.1M KNO3 using Calvin­ Blerrum technique as applied by Irving and Rossotti. The stability constants follow the usual stability order