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 dihydrogen phosphate C5H16NO5P (LPPJNZJBKFSQGA-UHFFFAOYSA-M) - Commercial source

Data

P = 101 kPa, T = 298.2 K
x (mol mol^-1)	γ (mol dm³ mol-1 dm^-3)
0.990	0.988
0.978	0.981
0.963	0.967
0.942	0.943
0.918	0.906
0.882	0.841
0.831	0.733

32999; water + choline dihydrogen phosphate; 00004:06380