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.
Proceedings of the Iowa Academy of Science
©1933 Iowa Academy of Science, Inc.
Pearce, J. N. and Thomas, Margaret
"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