The apparatus used for the determination of the enthalpies of formation of HF in the ternary solutions HF/HX/H 2O (HX HCl or H 2SO 4) and the methods of calculation are described.doi:10.1016/S0022-1139(00)85247-1J. ThoureyB. LipsG. PerachonElsevier B.V.Journal of Fluorine Chemistry...