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  • 1 ADM College for Women Nagapattinam Tamil Nadu India
  • 2 EGS Pillay Engineering College Nagapattinam Tamil Nadu India
  • 3 University of New Brunswick Department of Engineering Saint John NB E2L 4L5 Canada
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A single crystal of urea–thiourea was grown by slow evaporation of aqueous solution at room temperature. The bright and transparent crystals obtained were characterised by TG–DTA, UV and FTIR spectral analyses. A fitting decomposition pattern for the title compound was formulated on the TG curve which shows a two stage mass loss between 200 and 750 °C. DTA curve shows exothermic peaks supporting the formulated decomposition pattern in this temperature range. The UV and FTIR spectra show the characteristic absorption, vibration frequencies due to urea–thiourea zinc chloride crystals. Detailed structural analysis of the compound is under progress.

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