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  • 1 Liaoning Shihua University School of Chemistry and Material Science Fushun 113001 China
  • 2 Dalian Institute of Chemical Physics, Chinese Academy of Science Thermochemistry Laboratory Dalian 116023 China
  • 3 Dalian Jiaotong University College of Environmental Science & Engineering Dalian 116028 China
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Abstract  

The molar heat capacity C p,m of 1,2-cyclohexane dicarboxylic anhydride was measured in the temperature range from T=80 to 390 K with a small sample automated adiabatic calorimeter. The melting point T m, the molar enthalpy Δfus H m and the entropy Δfus S m of fusion for the compound were determined to be 303.80 K, 14.71 kJ mol−1 and 48.43 J K−1 mol−1, respectively. The thermodynamic functions [H T-H 273.15] and [S T-S 273.15] were derived in the temperature range from T=80 to 385 K with temperature interval of 5 K. The thermal stability of the compound was investigated by differential scanning calorimeter (DSC) and thermogravimetry (TG), when the process of the mass-loss was due to the evaporation, instead of its thermal decomposition.

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