Chemical thermodynamics of RuO2(s)
Source abstract
Abstract
Abstract Thermodynamic data for the ruthenium oxide RuO2(s) are basic data for the calculation of gaseous release in the case of severe nuclear accident. The present study is a critical analysis of thermochemical data for RuO2(s) based on available published experimental data from calorimetry, vapor pressures in equilibrium with the diphasic Ru RuO2 and Electromotive Force Measurements EMF. A full critical review and reinterpretation of data are presented in this work with a proposition of new and accurate data for RuO2(s): C°p (RuO2, s, 298.15 K) = 56.42 ± 0.08 J·K-1 ·mol-1, S°298.15 (RuO2,s) = 46.15 ± 0.05 J·K-1 ·mol-1, and Δ; fH298 (RuO2,s) = −312.3 ± 1.6 kJ.mol-1,
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Thermal and Kinetic Analysis · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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1. Heat capacity of RuO2 and IrO2 between 0.54° and 10°K10.1063/1.1671725 ↗
2. The thermophysical and thermochemical properties of RuO2 from 0 TO 1000 K10.1016/0022-3697(89)90444-7 ↗
3. Enthalpy of ruthenium dioxide to 1200°K by drop calorimetry10.1021/je60052a033 ↗
4. Gibbs free energies of formation of RuO2, IrO2, and OsO2: a high-temperature electrochemical and calorimetric study10.1016/S0016-7037(97)00317-7 ↗
5. Refinement of the thermodynamic properties of ruthenium dioxide and osmium dioxide10.1111/j.1151-2916.2000.tb01459.x ↗
6. Heat of formation of ruthenium dioxide
7. SGTE Data for pure elements10.1016/0364-5916(91)90030-N ↗
8. Beiträge zur Chemie der Platinmetalle. V. Thermischer Abbau des Ruthentrichlorids und des Ruthendioxyds10.1002/zaac.19241370127 ↗
9. Recherches sur le ruthénium: acide hyperruthénique
10. High-temperature chemistry of the ruthenium—oxygen SYSTEM110.1021/j100805a042 ↗
11. Zur Chemie der Platinmetalle. RuO2 chemischer transport, Eigenschaften, thermischer Zerfall10.1002/zaac.19633190514 ↗
12. Zur Chemie der Platinmetalle. V Gleichgewichte mit Ru (f) 5 RuO2 (f) 5 RuO3 (g) und RuO4 (g)10.1002/zaac.19633210105 ↗
13. Gasförmige Rutheniumoxyde bei hoher temperatur10.1002/ange.19610730112 ↗
14. Study of thermal dissociation of ruthenium dioxide and rhodium sesquioxide
15. Dissociation pressure and standard dissociation enthalpy of RuO210.1016/j.matchemphys.2003.09.012 ↗
16. High temperature mass spectrometry: instrumental techniques, ionization cross-sections, pressure measurements and thermodynamic data10.1351/pac200577040683 ↗
17. Thermodynamic properties of RuO210.1111/j.1151-2916.1971.tb12222.x ↗
18. Determination of free formation enthalpy of RuO2 with a galvanic solid cell
19. Thermodynamics of the system ruthenium-oxygen. Determination of the free energy of formation of RuO2 by means of emf measurements10.1515/zna-1971-0136 ↗
20. The enthalpy of formation of RuO210.1016/0040-6031(88)87197-1 ↗
21. Standard gibbs energies of formation of RuO2 (s) and LaRuO3(s) by oxide e.m.f. measurements10.1016/0022-5088(90)90458-V ↗
22. The thermal decomposition of sodium carbonate by the effusion method10.1021/j150524a011 ↗
23. Cordfunke · 1990