Phase comparison technique for measuring liquid–liquid phase equilibrium
1999; American Institute of Physics; Volume: 70; Issue: 4 Linguagem: Inglês
10.1063/1.1149712
ISSN1527-2400
AutoresZhiqu Lu, Jean‐Luc Daridon, B. Lagourette, S. Ye,
Tópico(s)Thermodynamic properties of mixtures
ResumoIn this article, a new method is demonstrated to measure the liquid–liquid phase equilibrium for binary systems. A phase comparison technique was employed to real-time display the phase–time curve in a “wave form (time) object” of Hewlett–Packard visual engineering environment. It was found that the phase–time curve showed a distorted wave form when liquid–liquid phase transition took place. The abnormal curve can therefore be used to detect liquid–liquid phase transitions. Measurements were performed in several binary systems such as nitromethane+1-hexanol, nitromethane+butanol, and nitroethane+n-hexane. The experimental results are in good agreement with those in the literature.
Referência(s)