Premium
Solubilities of solids in supercritical fluids
Author(s) -
Burk Robert,
Kruus Peeter
Publication year - 1992
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450700230
Subject(s) - supercritical fluid , endothermic process , supercritical carbon dioxide , enthalpy , carbon dioxide , chemistry , volatility (finance) , thermodynamics , organic chemistry , inorganic chemistry , adsorption , physics , financial economics , economics
The solubilities of several low‐volatility compounds in supercritical fluids were measured. The fluids used were pure carbon dioxide or carbon dioxide modified with small amounts of organic liquids. Some enthalpies of solution of solids in carbon dioxide at a density of 0.80 g/mL are presented. The enthalpy of solution of fluoranthene in carbon dioxide was found to be less endothermic at higher CO 2 density. The order of solubilities in the modified fluids was the same as that in the pure liquid modifiers. The same apparatus was used to measure vapor pressures of some substances as well as solubilities.