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Document Type

Research

Abstract

The rate of evolution of hydrogen by the action hydrochloric acid and perchloric acid on zinc was measured volumetrically as a function of various negative ion concentrations. Increasing zinc ion concentration retards the rate of the reaction. A four to one ratio of chloride to zinc ion reaccelerates the rate, suggesting the formation of Zn Cl4-- which removes the excess zinc ion from the reaction. Other complexing ions, thiocyanate, bromide and iodide ion, accelerate the reaction as does chloride. Sulfate, like perchlorate, has little effect. The results explain the fact that hydrochloric acid reacts with zinc at a higher rate than does perchloric acid of equal concentration and similar strength.

Publication Date

1961

Journal Title

Proceedings of the Iowa Academy of Science

Volume

68

Issue

1

First Page

182

Last Page

188

Copyright

© Copyright 1961 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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