The Influence of Strong Electrolytes upon the Rate of Inversion of Sucrose at 25°

Authors

J. N. Pearce, State University of IowaFollow
Margaret Thomas, State University of IowaFollow

Document Type

Research

Abstract

The rate of inversion of sucrose by hydrochloric acid in some typical salt solutions was studied at 25°. In every case the molalities of the sucrose and of the acid were fixed at 0.1 m and 1.0 m, respectively; the concentration of the salts ranging from 0.05 m to 1.0 m. For each salt the inversion coefficient varies rectilinearly with the molality. The order of decreasing influence upon the coefficient is BaCl₂ , NaCl, KCl. The order is exactly reversed when considered with respect to ionic strength. The velocity is decreased by potassium sulfate, due to the formation of the HSO₄ ion. The results are discussed from the standpoint of dipole orientation and ionic charge.

Publication Date

1933

Journal Title

Proceedings of the Iowa Academy of Science

Volume

40

Issue

1

First Page

93

Last Page

93

Copyright

©1933 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Pearce, J. N. and Thomas, Margaret (1933) "The Influence of Strong Electrolytes upon the Rate of Inversion of Sucrose at 25°," Proceedings of the Iowa Academy of Science, 40(1), 93-93.
Available at: https://scholarworks.uni.edu/pias/vol40/iss1/35