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Title: High pressure studies of potassium perchlorate

Abstract

Two experiments are reported on KClO 4 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 (KClO 4 hv→ KCl + 2O 2) was studied up to 15.2 GPa. The time-dependent growth of KCl and O 2 was monitored. The decomposition rate slowed at higher pressures. As a result, we present the first direct evidence for O 2 crystallization at higher pressures, demonstrating that O 2 molecules aggregate at high pressure.

Authors:
ORCiD logo [1];  [2];  [1];  [1];  [1]
  1. Univ. of Nevada, Las Vegas, NV (United States)
  2. Univ. of Nevada, Las Vegas, NV (United States); Carnegie Inst. of Washington, Argonne, IL (United States)
Publication Date:
Research Org.:
Univ. of Nevada, Las Vegas, NV (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1332633
Alternate Identifier(s):
OSTI ID: 1359002
Grant/Contract Number:
NA0001982; FC08-01NV14049; NA0001974; FG02-99ER45775
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Chemical Physics Letters
Additional Journal Information:
Journal Volume: 660; Journal Issue: C; Journal ID: ISSN 0009-2614
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; useful hard x-ray photochemistry; high pressure; oxygen; kclo4 decomposition

Citation Formats

Pravica, Michael, Wang, Yonggang, Sneed, Daniel, Reiser, Sharissa, and White, Melanie. High pressure studies of potassium perchlorate. United States: N. p., 2016. Web. doi:10.1016/j.cplett.2016.07.060.
Pravica, Michael, Wang, Yonggang, Sneed, Daniel, Reiser, Sharissa, & White, Melanie. High pressure studies of potassium perchlorate. United States. doi:10.1016/j.cplett.2016.07.060.
Pravica, Michael, Wang, Yonggang, Sneed, Daniel, Reiser, Sharissa, and White, Melanie. Fri . "High pressure studies of potassium perchlorate". United States. doi:10.1016/j.cplett.2016.07.060. https://www.osti.gov/servlets/purl/1332633.
@article{osti_1332633,
title = {High pressure studies of potassium perchlorate},
author = {Pravica, Michael and Wang, Yonggang and Sneed, Daniel and Reiser, Sharissa and White, Melanie},
abstractNote = {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 hv→ KCl + 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. As a result, we present the first direct evidence for O2 crystallization at higher pressures, demonstrating that O2 molecules aggregate at high pressure.},
doi = {10.1016/j.cplett.2016.07.060},
journal = {Chemical Physics Letters},
number = C,
volume = 660,
place = {United States},
year = {Fri Jul 29 00:00:00 EDT 2016},
month = {Fri Jul 29 00:00:00 EDT 2016}
}

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