Spontaneous Decomposition Temperatures of Potassium Chlorate-Iron Oxide Mixtures

Authors

F. E. BrownFollow
C. O. White

Document Type

Research

Abstract

Potassium chlorate and the oxides of iron were mixed in varying proportions and the spontaneous decomposition temperatures of the mixtures determined. Fe₃O₄ prepared at high temperatures exerted very little catalytic effect and no rapid evolution occurred below 374 ° in a mixture whose composition was KClO₃: Fe₃O₄:: 1: 1. A monohydrate of Fe₃O₄ prepared by precipitation was magnetic as precipitated. A 1: 1 mixture of this oxide with KClO₃ suffered spontaneous decomposition at 294°. A freshly prepared sample of Fe₂O₃ was used with KClO₃. Spontaneous decomposition occurred at 235°. A sudden evolution of Cl₂ occurred at 120°. The Cl₂ evolved at 120° was from NH₄Cl remaining in the Fe₂O₃. When iron oxides are heated they lose their catalytic effect on the decomposition of KClO₃.

Publication Date

1924

Journal Title

Proceedings of the Iowa Academy of Science

Volume

31

Issue

1

First Page

276

Last Page

277

Copyright

©1924 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Brown, F. E. and White, C. O. (1924) "Spontaneous Decomposition Temperatures of Potassium Chlorate-Iron Oxide Mixtures," Proceedings of the Iowa Academy of Science, 31(1), 276-277.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/55