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TG–DTA, UV and FTIR spectroscopic studies of urea–thiourea mixed crystal

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Abstract

A mixed crystal of urea–thiourea was grown by slow evaporation of aqueous solution at room temperature. The bright and transparent crystals obtained were characterized by thermogravimetric–differential thermal analysis (TG–DTA), UV and FTIR spectroscopic analyses. A fitting decomposition pattern for the title compound was formulated on the TG curve which shows a two stage weight loss between 200 and 750 °C. In this temperature range DTA curve shows exothermic peaks supporting the formulated decomposition pattern. The UV and FTIR spectra show the characteristic absorption, vibration frequencies due to urea–thiourea mixed crystals. Detailed structural analysis of the compound is under progress.

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Authors and Affiliations

  1. A. D. M. College for Women, Nagapattinam, 611 001, Tamil Nadu, India

    G. Madhurambal

  2. E. G. S. P. Engg. College, Nagapattinam, 611 002, Tamil Nadu, India

    M. Mariappan

  3. Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada

    S. C. Mojumdar

  4. Department of Engineering, University of New Brunswick, Saint John, NB, E2L 4L5, Canada

    S. C. Mojumdar

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  1. G. Madhurambal
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  2. M. Mariappan
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  3. S. C. Mojumdar
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Correspondence to S. C. Mojumdar.

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Madhurambal, G., Mariappan, M. & Mojumdar, S.C. TG–DTA, UV and FTIR spectroscopic studies of urea–thiourea mixed crystal. J Therm Anal Calorim 100, 853–856 (2010). https://doi.org/10.1007/s10973-010-0763-3

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  • DOI: https://doi.org/10.1007/s10973-010-0763-3

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