The heat of fluorination of phosphorus has been determined calorimetrically by combustion of white phosphorus in fluorine in a glass apparatus. The value obtained for the standard (from α-white phosphorus) heat of formation of phosphorus pentafluoride is ΔH°f298(PF5, g)=–381.4±0.8 kcal/mole.
P. Gross, C. Hayman and M. C. Stuart, Trans. Faraday Soc., 1966, 62, 2716 DOI: 10.1039/TF9666202716
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