Bleaching of Allura Red

Published: 2021-08-06 16:50:08
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Jason Fahrion April 10, 2013 A Kinetic Study of the Bleaching of Allura Red Introduction: In this laboratory experiment, we studied the kinetics of the reaction between Allura Red (C18H14N2O8S2) and bleach. C18H14N2O8S2 (aq) + NaOCl (aq) > products Allura Red is a food dye, which is an organic molecule with alternating single and double bonds.

In order to determine the rate law of the reaction, we had to use spectrophotometry in order to monitor the change in absorption of the various reactions. Since Allura Red was the only colored species in the reaction, we were able to monitor the rate by observing the decrease in color of the solution with time. From the absorption values, we were able to calculate the concentrations from Beer’s law: A=? BC (1). Five different trials were performed with various concentrations of Allura Red,

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