High pressure studies of potassium perchlorate

被引：14

作者：

Pravica, Michael ^{[1
]}

Wang, Yonggang ^{[1
,2
]}

Sneed, Daniel ^{[1
]}

Reiser, Sharissa ^{[1
]}

White, Melanie ^{[1
]}

机构：

[1] Univ Nevada, Dept Phys & Astron, High Pressure Sci & Engn Ctr HiPSEC, Las Vegas, NV 89154 USA

[2] Carnegie Inst Sci, Geophys Lab, High Pressure Synerget Consortium, Argonne, IL 60439 USA

来源：

CHEMICAL PHYSICS LETTERS | 2016年 / 660卷

关键词：

RADIATION-INDUCED DECOMPOSITION; CHLORATE; KCLO4; PETN; TATB;

D O I：

10.1016/j.cplett.2016.07.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 + 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. We present the first direct evidence for O-2 crystallization at higher pressures, demonstrating that O-2 molecules aggregate at high pressure. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：37 / 42

页数：6

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