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The Study Of Thermal Stability And Decomposition In Cadmium Oxalate Single Crystals


The Study Of Thermal Stability And Decomposition In Cadmium  Oxalate Single Crystals
Authors : Babita A. Saiyed
Publication Date: 29-10-2012

Authors

Author(s):  Babita A. Saiyed

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 8 (October - 2012)

e-ISSN:   2278-0181

Abstract

Cadmium Oxalate Single crystal grown using well known technique of crystal growth i.e gel technique. The grown crystal characterized using thermal technique. Their thermal behaviour is investigated using thermo analytical techniques (TGA,DTA, DSC). The thermogram reveals that the anhydrous oxalate is formed by liberating three molecules of water in the first step of transition gives the same reaction in both air and nitrogen atmosphere .The second phase transition results in CdO in air atmosphere while Cd is formed in nitrogen atmosphere at 385?C. Based on the data obtained from thermograms, different mechanic and non-mechanic equations are used to calculate kinetic parameters such as activation energy, order of reaction, frequency factor and entropy of the grown crystal.

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