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    Thermal Analysis of a Binary System with Distribution Coefficient Much Greater Than 1:2, 3 Dimethylnaphthalene/Anthracene

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    The phase diagram of the binary system 2, 3 dimethylnaphthalene/anthracene was determined using differential scanning calorimetry (DSC). Samples were prepared by either rapidly quenching melts or growing single crystals in a Bridgman oven. The system exhibited Roozeboom Type IV behavior with a peritectic at 115°C and an alpha-phase distribution coefficient of 2.4. This system exemplifies problems associated with determination of purity by DSC.


    phase diagram, distribution coefficient, solid solution, peritectic, single crystal growth, differential scanning calorimetry, 2, 3 dimethylnaphthalene, anthracene

    Author Information:

    McGhie, AR
    Laboratory supervisor, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA

    Committee/Subcommittee: E37.01

    DOI: 10.1520/STP32593S