Investigation of the Reaction Kinetics of o‐Phenylenediamine in the Presence of Cu(II)

Abstract The reactions involving o‐phenylenediamine (OPDA) in the presence of Cu(II) was studied and the reaction rate was found to be v = k[Cu2+]/[o‐phen]. Using a perpetual change curve, the ratio of [Cu2+]/[o‐phen] was found to be 1:1. The rate equations perpetual change curve demonstrates that one molecule of OPDA reacts with one Cu2+ ion and a monoimine is formed as the transfer of one electron occurs in the oxidation reaction.