Abstrakti
Mercury has been applied as a sealing and pressure transmission fluid in many experimental phase equilibrium studies employing the synthetic visual method as well as a moving piston in analytical isobaric and/or isothermal methods. However, mercury is highly toxic and therefore its use is restricted by authorities such as those of the European Union. A new apparatus employing nontoxic GaInSn liquid metal alloy as a sealing, moving piston, and pressure transmission fluid for phase equilibrium measurements with a nonvisual variable volume method is presented. The vapor pressures of toluene, hexylbenzene, and 2-ethylnaphtalene are provided within the applied temperature range of 400-620 K. New values for the parameters of the DIPPR 101 and Wagner equations, and PC-SAFT equation of state were regressed. The results demonstrate that GaInSn can be used in phase equilibrium cells as a very convenient substitute for mercury, especially at high temperatures.
| Alkuperäiskieli | Englanti |
|---|---|
| Sivut | 3270-3276 |
| Sivumäärä | 7 |
| Julkaisu | Journal of Chemical and Engineering Data |
| Vuosikerta | 65 |
| Numero | 7 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 9 heinäk. 2020 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Rahoitus
Jouni Touronen acknowledges the Finnish Foundation for Technology Promotion for additional financial support. Mikael Männistö acknowledges the Finnish Funding Agency for Technology and Innovation for financial support. Dominique Richon acknowledges the Finland Distinguished Professor Programme for financial support. Petri Uusi-Kyyny acknowledges the Finnish Academy for financial support.