1.308 ± 0.005 ethanol 1.9219 ± 0.0005 1-propanol 2.036 ± 0.002 2-propanol 0.850 ± 0.001 methanol 1.1008 ± 0.0003 ethanol K2HPO4 1.349 ± 0.001 1-propanol 1.7497 ± 0.0001 2-propanol 0.3039 ± 0.0006 methanol 0.365 ± 0.001 ethanol 0.396 ± 0.002 1-propanol 0.492 ± 0.002 2-propanol Table S3. Recovery of caffeine in top phase and volume ratio for all the systems investigated composed of 50.0 wt% alcohol + 15.0 wt% salt + 35.0 wt% of a caffeine aqueous solution, at 298 (±1) K. K3PO4 K2HPO4 K2HPO4/KH2PO4 Alcohol Rv RT ± std (%) Rv RT ± std (%) Rv RT ± std (%) methanol 5.8 81.6 ± 0.1 5.2 85.78 ± 0.01 4.8 59.37 ± 0.05 ethanol 3.7 81.9 ± 0.1 4.1 82.913 ± 0.003 3.4 55.2 ± 0.1 1-propanol 2.2 75.22 ± 0.01 2.3 81.03 ± 0.01 3.2 55.6 ± 0.1 2-propanol 2.5 84.61 ± 0.01 3.1 83.579 ± 0.001 3.0 59.6 ± 0.1
ethanol 1.308 ± 0.005 1-propanol 1.9219 ± 0.0005 2-propanol 2.036 ± 0.002 K2HPO4 methanol 0.850 ± 0.001 ethanol 1.1008 ± 0.0003 1-propanol 1.349 ± 0.001 2-propanol 1.7497 ± 0.0001 methanol 0.3039 ± 0.0006 ethanol 0.365 ± 0.001 1-propanol 0.396 ± 0.002 2-propanol 0.492 ± 0.002 Table S3. Recovery of caffeine in top phase and volume ratio for all the systems investigated composed of 50.0 wt% alcohol + 15.0 wt% salt + 35.0 wt% of a caffeine aqueous solution, at 298 (±1) K. Alcohol K3PO4 K2HPO4 K2HPO4/KH2PO4 Rv RT ± std (%) Rv RT ± std (%) Rv RT ± std (%) methanol 5.8 81.6 ± 0.1 5.2 85.78 ± 0.01 4.8 59.37 ± 0.05 ethanol 3.7 81.9 ± 0.1 4.1 82.913 ± 0.003 3.4 55.2 ± 0.1 1-propanol 2.2 75.22 ± 0.01 2.3 81.03 ± 0.01 3.2 55.6 ± 0.1 2-propanol 2.5 84.61 ± 0.01 3.1 83.579 ± 0.001 3.0 59.6 ± 0.1
01496395.2016.1199569_SI.docx