Termochemistry and fluorinating ability of cerium tetrafluoride

Experimental data on the thermal stability and fluorinating ability of cerium(IV) fluoride are critically reviewed. From experiments on the joint fluorination of CeF3k and platinum, the value ΔfH°(CeF4, k, 298 K) = –1939.9±7.6 kJ/mol was determined. The most reliable value of the enthalpy of sublimation of cerium tetrafluoride ΔsH°(CeF4, 298 K) = 270.2±1.7 was selected and ΔfH°(CeF4, g, 298 K) = –1669.6±7.8 kJ/mol was calculated. A comparison of CeF4(k) with other solid-phase fluorinating agents was carried out.