Zur Thermodynamik im System Rhenium—Sauerstoff
- 1 September 1971
- journal article
- research article
- Published by Wiley in Berichte der Bunsengesellschaft für physikalische Chemie
- Vol. 75 (9) , 934-938
- https://doi.org/10.1002/bbpc.19710750915
Abstract
Die freie Bildungsenthalpie von orthorhombischem ReO2 wird mit der Festkörperkette Fe, FeO/ZrO2 · Y2O3/Re, ReO2 bestimmt. Zwischen 850 und 1130 K ergibt sich: fδGT0ReO2 = ‐104840 + 43,20 · T ± 530 [cal/mol]. Bildungsenthalpie und Standardentropie werden mit δCp = 3,14 + 1,08 · 10−3 · T ‐2,69 · 105 · T−2 [cal/K · mol] berechnet: fδH2980 = ‐106,9 ± 2,0 kcal/mol, S2980ReO2 = 11,5 ± 1,5 cal/K · mol. Zwischen 298 und 1300 K erhält man: fGT0ReO2 = ‐107 570 ‐ 5,16 · T · log · T + 61,40 · T + 1000 [cal/mol].In einer übersicht werden die thermodynamischen Daten der Rheniumoxide ReO2, ReO3 und Re2O7 zusammengestellt.Keywords
This publication has 17 references indexed in Scilit:
- Crystal chemistry of metal dioxides with rutile-related structuresInorganic Chemistry, 1969
- Enthalpy of hydrolysis of rhenium trichloride. Enthalpy and free energy of formation of rhenium sesquioxideThe Journal of Physical Chemistry, 1969
- Thermodynamic study of the manganese/ manganous-oxide system by the use of solid oxide electrolytesElectrochimica Acta, 1967
- Thermodynamic Properties of Technetium and Rhenium Compounds. VI. The Potential of the ReO3/ReO4- Electrode and the Thermodynamics of Rhenium Trioxide1,2Journal of the American Chemical Society, 1957
- The Heat Capacity of Rhenium Heptoxide from 15 to 300°K. Entropy and Free Energy1Journal of the American Chemical Society, 1956
- Thermodynamic Properties of Technetium and Rhenium Compounds. III. Heats of Formation of Rhenium Heptoxide and Trioxide, and a Revised Potential Diagram for Rhenium1Journal of the American Chemical Society, 1953
- Thermodynamic Properties of Technetium and Rhenium Compounds. V. Low Temperature Heat Capacity and the Thermodynamics of Potassium Perrhenate and the Perrhenate Ion1Journal of the American Chemical Society, 1953
- The Vapor Pressures of Rhenium Heptoxide and Perrhenic AcidJournal of the American Chemical Society, 1952
- Methods of Estimating the Entropies of Solid CompoundsJournal of the American Chemical Society, 1951
- VAPOUR PRESSURE OF RHENIUM HEPTOXIDE, VAPOUR PRESSURE AND DISSOCIATION PRESSURE OF RHENIUM OCTOXIDEBulletin of the Chemical Society of Japan, 1932