Thermal stability of UNEX/HCCD-PEG diluent FS-13

• DOI: 10.1007/s10967-011-1179-7
• Publication Date: 2011-05-30T03:44:33Z
• Authors: Pranay Kumar Sinha; Shekhar Kumar; U. Kamachi Mudali; R. Natarajan
• Keywords: 01 natural sciences; 0104 chemical sciences

Phenyl trifluoromethyl sulfone (FS-13) is an inert diluent used in HCCD/PEG process for isolation and recovery of cesium and strontium from highly radioactive raffinate waste. There is no experimental data available in open literature describing pressurization due to the thermal decomposition of FS-13 at elevated temperatures. Experiments were conducted for determination of flash point and heating of FS-13 under pressurized closed-vent conditions in an adiabatic calorimeter. During adiabatic experiments, negligible pressurization was observed.