Thermal decomposition of rhombohedral double carbonates of dolomite type

Fazeli, A. R. and Tareen, J. A. K. (1992) Thermal decomposition of rhombohedral double carbonates of dolomite type. JOURNAL OF THERMAL ANALYSIS, 37 (11-12). pp. 2605-2611.

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Official URL: https://doi.org/10.1007/BF01974624

Abstract

DTA and TG studies in air were carried out for hydrothermally prepared rhombohedral double carbonates of dolomite type, CaMg(CO3)2, CaMn(CO3)2, CdMg(CO3)2, CdMn(CO3)2 and CdZn(CO3)2. The solid decomposition products in air have been compared to those obtained under hydrothermal conditions with CO2 pressure. The dolomite CaMg(CO3)2] decomposes in two stages both in air as well as under high CO2 pressure. The other carbonates studied, follow a single stage decomposition in air and a two stage decomposition under hydrothermal condition. In air, the manganese containing carbonates CaMn(CO3)2 and CdMn(CO3)2, decompose to form mixed oxides of CaMnO3 and CdMnO3 respectively, while CdMg(CO3)2 and CdZn(CO3)2 decompose to their respective two mono oxides.

Item Type: Article
Subjects: F Earth Science > Geology
Divisions: Department of > Earth Science
Depositing User: Ms Varalakshmi
Date Deposited: 12 Jan 2021 10:06
Last Modified: 30 Jun 2022 05:05
URI: http://eprints.uni-mysore.ac.in/id/eprint/14345

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