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FT‐IR spectroscopic and thermal studies on pure and impurity added calcium tartrate tetrahydrate crystals
Author(s) -
Sahaya Shajan X.,
Mahadevan C.
Publication year - 2005
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200410389
Subject(s) - tetrahydrate , impurity , endothermic process , chemistry , crystallography , crystal (programming language) , exothermic reaction , strontium , tartrate , atmospheric temperature range , analytical chemistry (journal) , infrared spectroscopy , inorganic chemistry , crystal structure , chromatography , organic chemistry , adsorption , thermodynamics , physics , computer science , programming language
Pure and impurity (strontium) added calcium tartrate tetrahydrate single crystals were grown by the gel method. The FT‐IR spectra of these crystals were recorded in the wavenumber range 400–4000 cm –1 . The thermograms of the grown crystals were recorded in the temperature range 50–900 °C. FT‐IR spectra reveals the presence of water molecules, O‐H bond, C‐O and carbonyl C=O bonds. The thermograms show that these crystals are thermally unstable and decompose into its oxide through many stages. DTA curve of the pure crystal shows three endothermic and one exothermic peaks. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)