TY - JOUR
T1 - Entropy scaled viscosities of choline-chloride-based deep eutectic solvents using a cubic EoS with volume translation
AU - Macías-Salinas, Ricardo
AU - Pereda-Cruz, Donaldo
N1 - Publisher Copyright:
© 2023
PY - 2023/9
Y1 - 2023/9
N2 - The present modeling work formally introduces, for the very first time, the application of the residual-entropy scaling approach to adequately represent the dynamic viscosity of deep eutectic solvents (DESs) as a function of temperature and density. In doing so, diverse unreduced and reduced viscosity forms (total viscosity, Rosenfeld and dilute gas) were verified and compared. The use of a cubic equation of state (CEoS: Soave-Redlich-Kwong or Peng-Robinson) served here to provide sufficiently accurate residual entropy data required by the present scaling procedure. Experimental DES density data were also modeled by applying a modified Mathias volume translation to the density data originally obtained from the two CEoS during the present scalings. The resulting modeling approach was sucessfully validated during the representation of experimental dynamic viscosities and mass densities of three of the most representative choline chloride-based DESs: ChCl:Urea(1:2), ChCl:Ethylene Glycol(1:2) and ChCl:Glycerol(1:2) within a temperature range varying from 10 to 100 °C and at pressures from 1 to 1,000 bar.
AB - The present modeling work formally introduces, for the very first time, the application of the residual-entropy scaling approach to adequately represent the dynamic viscosity of deep eutectic solvents (DESs) as a function of temperature and density. In doing so, diverse unreduced and reduced viscosity forms (total viscosity, Rosenfeld and dilute gas) were verified and compared. The use of a cubic equation of state (CEoS: Soave-Redlich-Kwong or Peng-Robinson) served here to provide sufficiently accurate residual entropy data required by the present scaling procedure. Experimental DES density data were also modeled by applying a modified Mathias volume translation to the density data originally obtained from the two CEoS during the present scalings. The resulting modeling approach was sucessfully validated during the representation of experimental dynamic viscosities and mass densities of three of the most representative choline chloride-based DESs: ChCl:Urea(1:2), ChCl:Ethylene Glycol(1:2) and ChCl:Glycerol(1:2) within a temperature range varying from 10 to 100 °C and at pressures from 1 to 1,000 bar.
KW - Cubic EoS
KW - Deep eutectic solvent
KW - Entropy scaling
KW - Viscosity model
KW - Volume translation
UR - http://www.scopus.com/inward/record.url?scp=85159489358&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2023.113849
DO - 10.1016/j.fluid.2023.113849
M3 - Artículo
AN - SCOPUS:85159489358
SN - 0378-3812
VL - 572
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
M1 - 113849
ER -