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Keywords:

  • microwave;
  • kinetic;
  • phenyl acetate;
  • hydrolysis;
  • catalysis

Abstract

A study of the influence of microwave radiation, at a frequency of 2.45 GHz on the evolution rate of the hydrolytic decomposition of phenyl acetate evolving in a radiated environment, is presented. The experimental data refer to temperatures of 25, 30, 35, 40, and 45°C at radiating powers of 500 and 1000 mW and to 35°C at the radiating powers of 50, 100, 200, 300, and 400 mW. Experimental data were obtained using the initial rate method and are correlated with a differential procedure. A comparison with the previously obtained results in a nonradiated environment is presented. From this comparison, the catalytic effect of microwave radiation with the reaction evolving in a nonradiated environment is proposed, replacing that running in a solution with catalytic acetate ions. © 2004 American Institute of Chemical Engineers AIChE J, 50: 1523–1529, 2004