Standard enthalpies of formation at 298.2 K for these materials were determined by solution calorimetry in 25% HF. The following values per unit cell content were obtained The resulting standard enthalpies of formation for the precursors of the reactants are: These values expressing the contribution...
Cmt是英文缩写，一是指特许市场技术分析师、二是指计算机科学、三是指冷金属过渡焊接技术、四是指来料加工。
Claudy P, Bonnetot B, Letoffe JM, Turck G (1978) Determination des constantes thermodynamiques des hydrures simples et complexes de l’aluminium. IV. Enthalpie de formation de LiAIH 2 et Li 3 AIH 6 . Thermochimica Acta 27:... P Claudy,B Bonnetot,JM Letoffe,... - 《Thermochimica ...
Enthalpie de formation des pentafluorotellurates IV de sodium NaTeF 5 et de lithium LiTeF 5Standard enthalpies of formation of NaTeF 5 and LiTeF 5 have been determined by reaction colorimetry in a molar solution of NaOH as: ΔfH° 298NaTeF 5(c) = -1661± 4 kj.mol -1 ΔfH° 298LiTeF...
The enthalpy of formation of the metasilicate hydrate Na 2SiO 3.5H 2O referred to the anhydrous silicate and water was determined by solution calorimetry at 298.2 K : 59.3 ± 3.0 kJ/ mol. Some considerations on the thermochemistry of hydrates are proposed....
Enthalpie de formation et de mélange de phosphoapatites calco-cadmiées chloréesCalcium–cadmium chlorapatites solid solutions with the general formula Ca10–xCdx (PO4) 6Cl2, 1≤ x≤ 10, were prepared by solid state reaction and characterized by X-ray diffraction, infrared spectroscopy and ...
CherifaM.JemalJournal of Thermal Analysis & CalorimetryA. Ben Cherifa, M. Jemal, Enthalpie de formation et de melange de phosphoap- atites calco-cadmiees chlorees, J. Therm. Anal. Calorim. 68 (2002) 1035-1044.Ben Cherifa A, Jemal M. Enthalpie de formation et de mélange de phospho...
The value deduced, -27,93路10 3 kJ mol -1 , is compared to the standard enthalpies of formation of the trimagnesium and the tricalcium phosphates.doi:10.1023/B:JTAN.0000041665.41225.c3Ben Abdelkader, S.Ben Cherifa, A.Coulet, M. V....
The standard enthalpies of formation of ammonium penta or hexafluorotellurate IV have been determined by reaction calorimetry in aqueous hydrogen fluoride as Δ fH° 298 NH 4TeF 5 = -1547 ± 15 kJ.mol -1 Δ fH° 298 (NH) 4 2TeF 6 = -2026 ± 20 kJ.mol -1...
The enthalpy of formation of the metasilicate hydrate Na 2 SiO 3 .5H 2 O referred to the anhydrous silicate and water was determined by solution calorimetry at 298.2 K : 59.3 ± 3.0 kJ / mol . Some considerations on the thermochemistry of hydrates are proposed.Fatima Bennour...