Radiation chemistry of CF2 Cl2 in the gas and liquid phases: Effect of doses rate |
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| Authors: | Z B Alfassi Sh Moosseri W Fürst |
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| Institution: | (1) Department of Nuclear Engineering, Ben-Gurion University of the Negev Beer-Sheva, (Isral);(2) Institut für Radiochemie der Technischen Universität München, (FRG) |
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| Abstract: | The dose rate dependence of CF2 Cl2 decomposition was studied in both, gas and liquid phase, for the range of 2.95·101 7–1.9·101 9 eV·g–1·h–1. The major products were found to be CF3Cl, CFCl3, CF2Cl–CF2Cl and CF2Cl–CFCl2. The decomposition of CF2Cl2 was found to decrease with decreasing dose rate for the liquid phase, while an opposite trend was found for gas phase radiolysis. A new mechanism which explains these contrasting findings was suggested. The contribution of radical and of ionic (or molecular) processes to the yields of the various products was estimated. |
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