Minireview: Methodology and instrumentation to evaluate critical pressure and temperature parameters

摘要

Critical parameters, such as critical temperatures, pressures, and densities, are basic in the development of supercritical fluid technology. However, the number of compounds for which critical parameters has been determined and has been limited by the current technology and the sensitivity of compound information to the external environment in a critical state. This paper provides an overview of the principles, key equipment, and methodologies to measure the critical parameters of compounds. The reliability of various determination methods is discussed, and future research into methods to determine critical compound parameters is suggested.