Stabilities of Bivalent Metal Chelates of 3-Hydroxy-3-Ethyl-1- p-Chloro and -1-o-Chlorophenyltriazenes

Stabilities of palladium, copper, nickel, zinc and manganese chelates of 3-hydroxy-3-ethyl-1-\(p\)-­chloro and-1-\(o\)-chlorophenyl triazenes have been determined in 70% v/v dioxan-water mixture by employing Bjerrum-Calvin \(p\)H titration technique. The titration medium was maintained at a constant ionic strength of 0 1 M potassium chloride and at 25±0.5°