Solubility of anthraquinone derivatives in supercritical carbon dioxide

Solubility of polyvinyl alcohol in supercritical carbon dioxide and subcritical 1,1,1,2-tetrafluoroethane

“…The main reason is that the volume of equilibrium cell for system R134a + PVA in this work is as small as 10 mL, which is more appropriate for the static method; while that for system CO 2 + PVA is 150 mL and more suitable for the dynamic method. Furthermore, it is found that most of the solubility measurements for solutes in SCCO 2 have been carried out using the dynamic method [37][38][39][40]; while the static method has been widely used in systems containing sub-R134a [18,19,41]. Both methods are reliable when applying the right experimental procedure.…”

Supercritical carbon dioxide as a green media in textile dyeing: A review

“…Tamura et al. 45 examined the effect of a functional substituent group addition onto the anthraquinone to the solubility changes in scCO 2 . They focused on the solubility data of 1-amino-4-hydroxyanthraquinone (C.I.…”

“…[40][41][42][43][44] Ö zcan et al 40 measured the solubility for the same dye at 20 MPa and 353.15 K and obtained a value of 3.76 Â 10 -6 mol dye/mol CO 2 . Also, Muthukumaran et al 43 Tamura et al 45 examined the effect of a functional substituent group addition onto the anthraquinone to the solubility changes in scCO 2 . They focused on the solubility data of 1-amino-4-hydroxyanthraquinone (C.I.…”

Solubility of Anthraquinone Derivatives in Supercritical Carbon Dioxide: New Correlations

“…The behavior of solid solute in the liquid phase is determined by a ratio of the fugacity between pure liquid solute and the solid state at pressure ( P ) and temperature ( T ), which have reported elsewhere [ 4 , 16 , 17 , 18 ]. Moreover, the activity of substance obtained from the melting temperature and the melting enthalpy of compound.…”