The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Dissolution Kinetics or Pure Mass Transfer? A Mechanistic Study of Dissolution

På svenska

Author

Summary, in English

In many cases, classic in vitro tests are used to investigate dissolution from powders and solids. A problem with these kinds of tests is the frequent use of agitation, leading to a lumped description of the properties at the solid-liquid intetface. The hydrodynamic forces arising from agitation might have a nontrivial impact on the dissolution properties, thus calling for a comparison of results with those stemming from stagnant dissolution with the aim to increase the understanding of the dissolution process. Stagnant dissolution of compressed solid benzoic acid was examined using the noninvasive electronic speckle pattern interferometry technique in this study. The diffusion coefficient for benzoic acid in 37 degrees C water was measured using the same technique, and, by combining the results, the surface kinetics at the solid-liquid intetface were calculated. A comparison with previous dissolution data from a rotating disk suggests that the presence of convection can increase the observed surface kinetics. (C) 2010 American Institute of Chemical Engineers AlChE J, 57: 2610-2617, 2011

Publishing year

2011

Language

English

Pages

2610-2617

Publication/Series

AIChE Journal

Volume

57

Issue

10

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Chemical Engineering

Keywords

  • dissolution
  • ESPI
  • benzoic acid
  • mass transfer
  • mathematical modeling

Status

Published

ISBN/ISSN/Other

  • ISSN: 1547-5905