Equation of state of shock-compressed liquids: Carbon dioxide and air
- 1 October 1991
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 95 (7) , 5268-5272
- https://doi.org/10.1063/1.461665
Abstract
Equation‐of‐state data were measured for liquid carbon dioxide and air shock‐compressed to pressures in the range 28–71 GPa (280–710 kbar) using a two‐stage light‐gas gun. The experimental methods are described. The data indicate that shock‐compressed liquid CO2 decomposes at pressures above 34 GPa. Liquid air dissociates above a comparable shock pressure, as does liquid nitrogen. Theoretical intermolecular potentials are derived for CO2 from the data. The calculated shock temperature for the onset of CO2 decomposition is 4500 K at a volume of 17 cm3/mol.Keywords
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