Journal of Chemistry and Applied Chemical EngineeringISSN : 2576-3954

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Kinetic Study of the Discoloration of Crystal Violet Dye in Sodium Hydroxide Medium

The kinetics of the Discoloration of crystal violet in alkaline medium was investigated via pseudo-first order kinetics at λmax587 nm. The reaction was first order dependence on [CV] and [OH-]. A decrease in pseudo first-order rate constant with increase in ionic strength of the reaction mixture was observed. Activation parameters were calculated and a plausible association mechanism in agreement with the kinetic and spectroscopic results was provided. Spectrophotometric titration revealed 1:1 consumption of crystal violet to hydroxyl ion.

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