Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (1): 88-90.

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HEAT CAPACITY AND PHASE TRANSITION ENTHALPY OF TRIMETHYLOLPROPANE-PENTAERYTHRITOL SOLID SOLUTION

Zhang Zhiying, Yang Menglin   

  1. Thermochemistry Institute, Northwestern University, Xi'an 710069
  • Received:1989-05-12 Revised:1989-07-12 Published:1990-02-10 Online:1990-02-10

Abstract: The heat capacity of the solid solution of trimethylolpropane and pentaerythritol(60:40 mol%)was measured by means of an automated adiabatic calorimeter. A solid-solidtransition and a melting transition of the solid solution were found at 330.51 K and433.0 K with the transition enthalpies of 9.72 and 5.76 kJmol-1, respectively.

Key words: trimethylolpropane, pentaerythritol, heat capacity, phase transition enthalpy