Supercritical fluid

Detection limit

Physics

Meteorology

Organic chemistry

Mathematics

Carbon dioxide

Statistics

Epistemology

Absolute deviation

van der Waals force

Solubility

Supercritical carbon dioxide

Philosophy

Physical chemistry

Chemistry

Bar (unit)

Absolute (philosophy)

Molecule

Relative standard deviation

Chromatography

Thermodynamics

Scientific Reports

One of the best methods of extracting Vitamin A, as a helper of the immune body system and vision, was measured in supercritical carbon dioxide (SC-CO 2 ); Mole fractions were gained at practical conditions in which the temperature was in the range of 303–323 K and the pressure range was 90–235 bar, respectively. Moreover, four Equation of States [Soave–Redlich–Kwong, Peng–Robinson, Stryjek–Vera and Dashtizadeh–Pazuki–Taghikhani–Ghotbi (DPTG)] were compared with the experimental data. Also, the mixing rules of Van der Waals (vdW1 and vdW2) selected to correlate the solubility data of vitamin A. The outcomes indicate that each of EOSs coupled with vdW2, as a method of estimating the physicochemical and critical properties, were correlated with the solubility data of vitamin A in SC-CO 2 with more accuracy, in comparison with vdW1. Among the cubic EOSs, the DPTG model with vdW2 generated the most suitable correlation with the percentage average absolute relative deviation (Average Absolute Relative Deviation%) of 6.

Solubility of vitamin A in supercritical CO2: experimental study and thermodynamic modeling