Applications of Transitiometry: Determination of Thermophysical Properties and Decomposition Kinetics of Peroxide(Mixtures) Under High-Pressure

Scanning transitiometry is an important calorimetric method co-invented by Jean-Pierre E. Grolier and Stanislaw L. Randzio. Transitiometry enables to measure highly sensitive under high-pressure and high-temperature conditions. Nowadays, process modelling is a tool of increasing importance beyond the process of understanding process dynamics. For a valid modelling approach, a reliable data base at process conditions is required. Many processes are carried out at high temperature and pressure. Under such harsh conditions, comparatively few methods can be applied and thus limited kinetic parameters are known. Therefore, extrapolated values from low-pressure data are often utilized. Transitiometry can reduce this data gap for thermophysical properties such as heat capacity, thermal expansion coefficient and isothermal compressibility. In this paper, an overview about the method evaluation to determine thermophysical properties under high pressure using transitiometry is given. Additionally, an oversight is provided of the investigation of the decomposition kinetics of peroxides and their mixtures as another application area of high-pressure calorimetry.