High pressure studies of potassium perchlorate

Authors

Michael Pravica, University of Nevada, Las VegasFollow
Yonggang Wang, University of Nevada, Las VegasFollow
D Sneed, University of Nevada, Las VegasFollow
S Reiser, University of Nevada, Las Vegas
Melanie White, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

1-1-2016

Publication Title

Chemical Physics Letters

Volume

660

First page number:

37

Last page number:

42

Abstract

Two experiments are reported on KClO4 at extreme conditions. A static high pressure Raman study was first conducted to 18.9 GPa. Evidence for at least two new phases was observed: one between 2.4 and 7.7 GPa (possibly sluggish), and the second near 11.7 GPa. Then, the X-ray induced decomposition rate of potassium perchlorate KClO4→hνKCl+2O2 was studied up to 15.2 GPa. The time-dependent growth of KCl and O2 was monitored. The decomposition rate slowed at higher pressures. We present the first direct evidence for O2 crystallization at higher pressures, demonstrating that O2 molecules aggregate at high pressure. © 2016 Elsevier B.V.

Language

English

Repository Citation

Pravica, M., Wang, Y., Sneed, D., Reiser, S., White, M. (2016). High pressure studies of potassium perchlorate. Chemical Physics Letters, 660 37-42.
http://dx.doi.org/10.1016/j.cplett.2016.07.060