TY - JOUR
T1 - Application of GaInSn Liquid Metal Alloy Replacing Mercury in a Phase Equilibrium Cell : Vapor Pressures of Toluene, Hexylbenzene, and 2-Ethylnaphthalene
AU - Touronen, Jouni
AU - Männistö, Mikael
AU - Richon, Dominique
AU - Uusi-Kyyny, Petri
AU - Alopaeus, Ville
PY - 2020/7/9
Y1 - 2020/7/9
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85085071114&partnerID=8YFLogxK
U2 - 10.1021/acs.jced.9b01208
DO - 10.1021/acs.jced.9b01208
M3 - Article
AN - SCOPUS:85085071114
SN - 0021-9568
VL - 65
SP - 3270
EP - 3276
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 7
ER -