. 2021 Apr 6;11:7546. doi: 10.1038/s41598-021-87243-6

Table 4.

A brief statement of the density-based models utilized in the present research (c, ρ, T, P, P_ref, ρ_ref, y₂ and a₀-a₅ are solubility of solute, density of SC-CO₂, temperature, pressure, reference pressure, reference density, mole fraction in binary system and adjustable parameters, respectively.

Model	Formula
Chrastil²⁸	$c = ρ^{a_{0}} exp (\frac{a_{1}}{T} + a_{2})$
K-J²⁹	$Ln$ ( $y_{2}$ ) = $a_{0} + a_{1} ρ + \frac{a_{2}}{T}$
Bartle et al.⁵¹	$ln (\frac{y_{2} P}{P_{ref}}) = a_{0} + \frac{a_{1}}{T} + a_{2} (ρ - ρ_{ref})$
MST³²	$T ln (y_{2} P) = a_{0} + a_{1} ρ + a_{2} T$
Sparks et al.⁴²	$c_{2}^{*} = ρ_{r, 1}^{a_{0} + a_{1} ρ_{r, 1}} exp (a_{2} + \frac{a_{3}}{T_{r}})$
Bian et al.⁴¹	$y_{2} = ρ^{(a_{0} + a_{1} ρ)} exp (\frac{a_{2}}{T} + \frac{a_{3} ρ}{T} + a_{4})$
Jouyban et al.³³	$ln y_{2} = a_{0} + a_{1} ρ + a_{2} P^{2} + a_{3} P T + \frac{a_{4} T}{P} + a_{5} ln (ρ)$
Sodeifian et al.¹⁴	$ln y_{2} = a_{0} + a_{1} \frac{P^{2}}{T} + a_{2} ln (ρ T) + a_{3} (ρ ln ρ) + a_{4} P ln T + a_{5} \frac{ln ρ}{T}$