NIST TRC ThermoML Dataset

(Solid + liquid) and (liquid + liquid) phase equilibria measurements and correlation of the binary systems {tri-iso-butyl(methyl)phosphonium tosylate + alcohol, or + hydrocarbon} Domańska, U.; Paduszyński, K.; Fluid Phase Equilibria 2009, 278, 90-96

Journal: Fluid Phase Equilibria
Sample Quantity(ies): Liquid-liquid equilibrium temperature
Methodology: VISOBS:UFactor:4
Phase(s): Liquid mixture 1
Substances:
1. heptane C7H16 (IMNFDUFMRHMDMM-UHFFFAOYSA-N) - Commercial source
2. triisobutylmethylphosphonium p-toluenesulfonate C20H37O3PS (SNXTZFCNWIVLKZ-UHFFFAOYSA-M) - Commercial source

Data

P = 101 kPa
x (mol mol^-1)	T_LLE (K)
0.5536	353.78
0.8157	316.73
0.8195	315.86
0.5832	351.17
0.6133	348.8
0.6345	343.18
0.6811	335.72
0.7108	332.45
0.7638	324.67
0.7838	321.57
0.7917	320.28

31073; heptane + triisobutylmethylphosphonium p-toluenesulfonate; 00005:04551