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 glycolate C7H17NO4 (JGVSZDFHWNPMMA-UHFFFAOYSA-M) - Commercial source

Data

P = 101 kPa, T = 298.2 K
x (mol mol^-1)	γ (mol dm³ mol-1 dm^-3)
0.989	0.989
0.975	0.97
0.959	0.943
0.937	0.889
0.869	0.685
0.718	0.351

12281; water + choline glycolate; 00004:02575