Kinetics of Ethyl Acetate Synthesis Catalyzed by Acidic Resins
authors Antunes, BM; Cardoso, SP; Silva, CM; Portugal, I
nationality International
journal JOURNAL OF CHEMICAL EDUCATION
author keywords Upper-Division Undergraduate; Chemical Engineering; Laboratory Instruction; Physical Chemistry; Computer-Based Learning; Hands-On Learning/Manipulatives; Equilibrium; Esters; Kinetics; Laboratory Equipment/Apparatus
keywords ACETIC-ACID; ESTERIFICATION
abstract A low-cost experiment to carry out the second-order reversible reaction of acetic acid esterification with ethanol to produce ethyl acetate is presented to illustrate concepts of kinetics and reactor modeling. The reaction is performed in a batch reactor, and the acetic acid concentration is measured by acid-base titration versus time. The experimental data are used to optimize the specific rate constant of the direct reaction, which is the unique parameter of the model; the rate constant for the inverse reaction is expressed in terms of the equilibrium constant. Good representations are generally obtained: the absolute average relative deviation found in this work is only 2.86%. After the experiment, students may carry out simulations for distinct operating conditions. The experimental data for short times are also analyzed approximately by using the classical approach for irreversible second-order reactions.
publisher AMER CHEMICAL SOC
issn 0021-9584
year published 2011
volume 88
issue 8
beginning page 1178
ending page 1181
digital object identifier (doi) 10.1021/ed100471j
web of science category Chemistry, Multidisciplinary; Education, Scientific Disciplines
subject category Chemistry; Education & Educational Research
unique article identifier WOS:000293049700037
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journal analysis (jcr 2017):
journal impact factor 1.758
5 year journal impact factor 1.570
category normalized journal impact factor percentile 53.174
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