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DSC Calibration During Cooling. A survey of possible compounds

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Abstract

A number of compounds is investigated for DSC calibration during cooling. Adamantane and Zn show fast reversible transitions and can be applied both for temperature and for heat calibrations. A third compound, namely 4,4’-azoxyanisole, has a liquid crystal to isotropic liquid transition at 409K. This compound can be used for temperature calibration. Heat calibration with this compound is more problematic because of the small heat effect and the construction of the baseline. Other compounds like NaNO3, In, Hg and Pb, show a slight supercooling. Nevertheless they can be used for heat calibration. The use of large samples of NaNO3 and In gives the possibility to construct the equilibrium onset temperatures of the cooling peaks, so these two compounds are also appropriate for temperature calibration on cooling.

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Authors and Affiliations

  1. Chemistry Department, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands

    G. Hakvoort

  2. Chemical Thermodynamics Group, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands

    C. M. Hol & P. J. van Ekeren

Authors
  1. G. Hakvoort
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  2. C. M. Hol
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  3. P. J. van Ekeren
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Hakvoort, G., Hol, C.M. & van Ekeren, P.J. DSC Calibration During Cooling. A survey of possible compounds. Journal of Thermal Analysis and Calorimetry 64, 367–375 (2001). https://doi.org/10.1023/A:1011534423634

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  • DOI: https://doi.org/10.1023/A:1011534423634

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