Decomposition of binary sulphate KHSO4 at high pressure |
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| Authors: | Akhilesh K. Arora T. Sakuntala |
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| Affiliation: | 1. Materials Science Division , Indira Gandhi Centre for Atomic Research , Kalpakkam, 603 102, India;2. Solid State Physics Division , Bhabha Atomic Research Center , Mumbai, 400 085, India |
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| Abstract: | Abstract Pressure induced decomposition (PID) is known to occur only at elevated temperatures. Here we report its first occurrence at ambient temperature in a binary sulphate, KHSO4 at 4kbar. Raman spectroscopy is used for identifying the decomposition products as K3H(SO2 4) and H2SO4 from their characteristic spectra. One of the decomposition products being a liquid is argued to be the reason for the occurrence of the phenomenon at ambient temperature. Other possible decomposition routes are also examined. |
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| Keywords: | High pressure phase transitions Raman spectroscopy decomposition geochemistry |
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