The Kinetics of Dissolution Revisited

An experiment analyzing the kinetics of dissolution of a solid with cylindrical geometry in water is presented. The dissolution process is followed by measuring the solid mass and its size parameters (thickness and diameter) as a function of time. It is verified that the dissolution rate follows the...

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Bibliographic Details
Published inJournal of chemical education Vol. 80; no. 9; p. 1042
Main Authors Antonel, Paula S, Hoijemberg, Pablo A, Maiante, Leandro M, Lagorio, M. Gabriela
Format Journal Article
LanguageEnglish
Published Easton Division of Chemical Education 01.09.2003
American Chemical Society
Subjects
Chemistry
Dissolution
Experiments
Kinetics
Science education
Second-Year Undergraduate
Hands-On Learning / Manipulatives
Transport Properties
Laboratory Instruction
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Summary:An experiment analyzing the kinetics of dissolution of a solid with cylindrical geometry in water is presented. The dissolution process is followed by measuring the solid mass and its size parameters (thickness and diameter) as a function of time. It is verified that the dissolution rate follows the Nernst model. Data treatment is compared with the dissolution of a spherical solid previously described. Kinetics, diffusion concepts, and polynomial fitting of experimental data are combined in this simple experiment.
ISSN:0021-9584
1938-1328
DOI:10.1021/ed080p1042