Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Correlation algorithms for ionic species and equation of state predictions to 5 kb and 1000°C

Deep Eutectic Solvents

A new model for calculating the viscosity of aqueous solutions has been developed. Parameters for 74 solutes were established based on a critical review of the literature for solutions of one solute in water, with over 9000 points included. The average difference between the calculated and experimental viscosities is less than 0.1 %, and the standard deviation of this difference is 3.7 % of the average experimental viscosity. The model was validated by estimating published viscosity for systems of more than one solute in water. The average difference between experimental and calculated values for 1700 points is −2.7 %, and the standard deviation of this difference is 16 % of the average experimental viscosity. The median standard deviation of the difference between experimental and calculated values is 3.5 % of the experimental viscosity. The solutes studied are (NH4)2SO4, AlCl3, BaCl2, Ca(NO3)2, CaCl2, Cd(NO3)2, CdCl2, CdSO4, CoCl2, CoSO4, Cr2(SO4)3, CrCl3, Cu(NO3)2, CuCl2, CuSO4, Fe2(SO4)3, FeCl2, FeSO4...

Model for Calculating the Viscosity of Aqueous Solutions

A new model for calculating the density of aqueous solutions of electrolytes has been developed. Parameters for 59 electrolytes were established on the basis of an extensive critical review of the published literature for solutions of one electrolyte in water, with over 10 700 points included. The average difference between the calculated and experimental density of solutions of water and one electrolyte is 0.10 kg m-3 with a standard deviation of 1.44 kg m-3. The model was validated by predicting the density of systems of two or more electrolytes in water. The average difference between experimental and calculated values for over 1600 points is 0.003 kg m-3 with a standard deviation of 1.39 kg m-3. The electrolytes studied are AlCl3, Al2(SO4)3, BaCl2, CaCl2, CdCl2, CdSO4, CoCl2, CoSO4, CrCl3, Cr2(SO4)3, CuCl2, CuSO4, FeCl2, FeSO4, FeCl3, Fe2(SO4)3, HCl, HCN, HNO3, H3PO4, H2SO4, KCl, K2CO3, KNO3, KOH, K2SO4, LiCl, Li2SO4, MgCl2, MgSO4, MnCl2, MnSO4, NaBr, NaCl, NaClO3, Na2CO3, NaF, NaHCO3, NaH2PO4, Na2HPO...

Model for Calculating the Density of Aqueous Electrolyte Solutions

Equations for calculating hydrogeochemical reactions of minerals and gases such as CO2 at high pressures and temperatures

Density, viscosity, and electrolytic conductivity of concentrated aqueous electrolyte solutions at several temperatures. Alkaline-earth chlorides, LaCl3, Na2SO4, NaNO3, NaBr, KNO3, KBr, and Cd(NO3)2

Toshiaki Isono

Papers

Density, viscosity, and electrolytic conductivity of concentrated aqueous electrolyte solutions at several temperatures. Alkaline-earth chlorides, LaCl3, Na2SO4, NaNO3, NaBr, KNO3, KBr, and Cd(NO3)2