[en] The enthalpy of sublimation for the reaction PuF₃(s)→PuF₃(g) over the range 1127 to 1280 K was measured to be 413.8±16.4kJ/mol for the PuF₂⁺/PuF₃ ion intensity and 412.0±35.7kJ/mol for the PuF₃⁺/PuF₃ ion intensity. Combining this data with the measurements of other investigators gives ΔH_s⁰(298 K)=429.5±4.7 kJ/mol for the enthalpy of sublimation of PuF₃(s). (orig.)