Abstract
A calorimetric method of determining the heats of reaction of materials in the solid state, at temperatures up to 1100°C, has been developed. The sample is heated at a rate of 10 degC min-1 and the heat changes associated with reaction processes in the sample are measured. Values for the heats of decomposition of some carbonates have been determined. At the present stage only endothermic heats of reaction have been measured.