Rongwen Lu, Ziang Zhao, Xinyu Hao
Oct 1, 2017
Citations
0
Influential Citations
0
Citations
Journal
Chinese Journal of Chemical Engineering
Abstract
Abstract A systematic study of the synthesis of C.I. Acid Blue 9 leuco compound in water is reported. The kinetic analysis of experimental data for the condensation reaction between 2-formylbenzenesulfonic acid sodium and N -ethyl- N -(3′-sulfonic acid benzyl) aniline obtained at four different temperatures ranging between 85 and 100 °C is discussed. It is shown that the reaction followed second-order rate kinetics. The overall rate constant ( k ) increased with the increase of temperature. On the basis of the value of k , activation energy ( E a ) of the reaction was evaluated. Importantly, it is found that reactant concentration has great effect on the formation of C.I. Acid Blue 9 leuco compound, implying that it is not enough to improve the conversion of N -ethyl- N -(3′-sulfonic acid benzyl) aniline by only prolonging reaction time in the late period of the reaction.