Why Redox Pulping Catalysts Pit the Square Root Relationship

Different mixture rates of the redox pulping additives anthraquinone with anthraquinone-2-sulfonate, and of benzindazoledione with rosindonesulfonate were investigated. The experimental results showed that additives in mixtures very strongly influence each other's efficacy. The degree of coupling indicates that the square root relationship is best explained by kinetics of the chemical reaction mechanism and not by mass transfer processes.