Thermal Analysis of Magnesite at CO2 Pressures up to Six Atmospheres
- 1 February 1954
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 37 (2) , 46-48
- https://doi.org/10.1111/j.1151-2916.1954.tb14003.x
Abstract
The literature contains contradictory statements that the decomposition of magnesite is and is not affected by the pressure of CO2 during the decomposition reaction. By means of the new variable‐pressure differential thermal analysis technique, samples of Washington and Nevada magnesites were run at CO2 pressures over the range 0.001 to 5000 mm. Hg. At 0.001 mm. Hg the endothermic loop starts at approximately 350°C., at 500° C. for 1 atmosphere of CO2, and at 612°C. under 5000 mm. Hg pressure of CO2. The results permit straightforward analysis of the mechanics of decomposition and comply with the Clausius‐Clapeyron and Van't Hoff equations at CO2 pressures above 250 mm. Hg.Keywords
This publication has 2 references indexed in Scilit:
- Apparatus for Differential Thermal Analysis Under Controlled Partial Pressures of H2O, CO2, or Other GasesJournal of the American Ceramic Society, 1952
- PRECISION METHOD OF THERMAL ANALYSIS*Journal of the American Ceramic Society, 1948