NIST TRC ThermoML Dataset

Assessing the activity coefficients of water in cholinium-based ionic liquids: Experimental measurements and COSMO-RS modeling Khan, I.; Kurnia, K.A.; Sintra, T.E.; Saraiva, J.A.; Pinho, S.P.; Coutinho, J.A.; Fluid Phase Equilibria 2014, 361, 16-22

Journal: Fluid Phase Equilibria
Sample Quantity(ies): Activity coefficient
Methodology: Calculated from EMF cell potential
Phase(s): Liquid
Substances:
1. water H2O (XLYOFNOQVPJJNP-UHFFFAOYSA-N) - Commercial source
2. choline acetate C7H17NO3 (QLKGUVGAXDXFFW-UHFFFAOYSA-M) - Commercial source

Data

P = 101 kPa, T = 298.2 K
x (mol mol^-1)	γ (mol dm³ mol-1 dm^-3)
0.988	0.984
0.970	0.961
0.955	0.93
0.931	0.867
0.903	0.776
0.858	0.618
0.797	0.446
0.697	0.257

32996; water + choline acetate; 00004:03243