Solubility and partial molar volumes of heavy aromatic hydrocarbons in super critical carbon dioxide

1988 ◽  
Vol 33 (1) ◽  
pp. 35-37 ◽  
Author(s):  
Somenath Mitra ◽  
Juh W. Chen ◽  
Dabir S. Viswanath
2017 ◽  
Vol 23 (4) ◽  
pp. 563-571
Author(s):  
Nina Trupej ◽  
Masa Knez-Hrncic ◽  
Mojca Skerget ◽  
Zeljko Knez

The binary system of vitamin K3 and CO2 was investigated at temperatures of 40, 60 and 80 ?C up to a pressure of 40 MPa. Solubility was measured by a static-analytic method. Partial molar volumes were determined by a method involving a vibrating tube densimeter. The solubility of vitamin K3 in CO2 is found as a function of pressure and temperature. The highest solubility (31.16?10-4 mol?mol-1) was attained at a pressure of 25.40 MPa at temperature of 40?C. However, at temperature of 60?C and a pressure of 24.02 MPa, the solubility was 18.79?10-4 mol?mol-1. Solubility was lower at a temperature of 80?C and a pressure of 22.06 MPa (6.48?10-4 mol?mol-1). The partial molar volumes are negative and the dissolved vitamin K3 has a minor impact on the density of the solution of K3 in CO2 compared to the density of the pure CO2.


2016 ◽  
Vol 93 ◽  
pp. 337-346 ◽  
Author(s):  
Connor E. Deering ◽  
Edward C. Cairns ◽  
Jay D. McIsaac ◽  
Andrew S. Read ◽  
Robert A. Marriott

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