ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Differential thermal analysis of carbonates in carbon dioxide current

V. Šiške and I. Proks

Slovak Technical University, Bratislava

Abstract: It was detd. by differential thermal analysis (I) that there is no assocn. (recarbonation) of CO₂ with the oxides formed by the decompn. of siderite and magnesite or with MgO formed by the 1st degree decompn. of dolomite. From the curves of CaO and CO₂ assocns. it was possible to det. exactly the beginning of the assocn. and the temp. at which the dissociation pressure of CO₂ is equal to atm. pressure. The dissocn. and assocn. curves, CaCO₃ ↹ CaO + CO₂, detd. by I, are affected by the speed of heating and cooling. Under given conditions approx. 75% CaCO₃ is formed by the assocn. from the total amt. of CaCO₃ before decompn.

Full paper in Portable Document Format: 124a201.pdf (in Slovak)

Chemical Papers 12 (4) 201–208 (1958)