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Crystal Research and Technology |
Cryst. Res. Technol. 40,
598 (2005) - Abstract -
FT-IR spectroscopic and thermal studies on pure and impurity added calcium tartrate tetrahydrate crystals
X. Sahaya Shajan and C. Mahadevan*
Department of Physics, Sivanthi Aditanar College, Pillayarpuram – 629 501, India
*Physics Research Centre, S.T. Hindu College, Nagercoil – 629 002, India
| Keywords | calcium tartrate tetrahydrate, gel growth, FT-IR spectra, thermogravimetric analysis |
| PACS | 78.30.-j, 81.10Dn, 65.40.-b |
| DOI | 10.1002/crat.200410389 |
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 – 4000cm-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.
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