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Entropic factor in the solubility of small particles

โœ Scribed by Victor F. Smolen; Dane O. Kildsig

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
228 KB
Volume
60
Category
Article
ISSN
0022-3549

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โœฆ Synopsis

A mechanistic basis for the dependence of solubility on particle size was investigated. The solubility difference between a crystalline and microcrystalline solid was determined ; the microcrystalline solid had a greatei solubility than the crystalline. The heat of solution, as determined from a Vari't Hoff plot, was found to be independent of particle size. The observed solubility difference was interpreted to be due to a relatively greater entropy of solution for the microcrystalline solid as compared to the crystalline solid.

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