Rate-scanning modified adiabatic calorimeter

We have developed a continuous cooling method, as a simple modification of adiabatic calorimetry which typically operates in the heating mode, with the capability of varying the scanning rate in the range of 0.01-2 K/min. This method allows us to determine the absolute value of specific heat of a liquid or solid during cooling as well as during heating in the temperature range between 100 and 400 K. The typical specific heat data of a supercooled liquid [Ca(NO3)(2)](0.4)(KNO3)(0.6) agree well with results by other methods. (C) 1996 American Institute of Physics.