Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
675903 | Thermochimica Acta | 2006 | 5 Pages |
Abstract
Thermochemistry of the reaction between SrCO3 and SrCeO3, represented asSrCO3(s) + SrCeO3(s) = Sr2CeO4(s) + CO2(g),was studied over the temperature range 1035–1135 K. The equilibrium pressure of CO2(g) over the ternary phase mixture of SrCO3(s), SrCeO3(s) and Sr2CeO4(s) was measured at various temperatures by a tensimetric apparatus. The temperature dependence of the measured equilibrium CO2(g) pressure could be represented asln pCO2(Pa)(±0.04)=−24742(±550)T+28.43(±0.55) (1035≤T(K)≤1115)Simultaneous thermogravimetric (TG)/differential thermal analysis (DTA) experiments were carried out for reaction between SrCO3(s) and CeO2(s) in CO2 atmosphere. The results were used to derive the thermodynamic properties of Sr2CeO4(s).
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
A.N. Shirsat, K.N.G. Kaimal, S.R. Bharadwaj, D. Das,