Enthalpie de dissolution du fluorure et de l′hydrogenofluorure d'ammonium dans les solutions d'acide fluorhydrique |
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| Authors: | S Bendaoud J Thourey G Perachon |
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| Institution: | Laboratoire de Thermochimie Minérale associé au C.N.R.S. sous le N° 116, Institut National des Sciences Appliquées de Lyon, 20 avenue A. Einstein, 69621 Villeurbanne Cédex France |
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| Abstract: | The standard enthalpies of solution of NH4F and NH4HF2 in aqueous solutions of hydrogen fluoride (in the range of concentration 0–30 mol.1?1) have been measured and from these results the standard enthalpy of formation of NH4HF2(c) has been derived as: δHofNH4HF2(c) = ?809.9 ± 0.9 kJ.mol?1 |
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