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. 2021 Dec 16;11:24081. doi: 10.1038/s41598-021-03212-z

Table 6.

The obtained partial molar isentropic compressibility κ0φ, experimental parameters Bk, and ∆trκ0φ along standard deviations σ (κφ) for binary PTH/ethanol and ternary PTH/ethanol/DESs solutions at T = (288.15 to 318.15) K and at ambient pressure (P = 871 hPa).

T / K 1014 κ0φ / m3 mol-1 Pa-1 1014 Bk / kg m3 mol-2 Pa-1 1014trκ0φ / m3 mol-1 Pa-1 σ (κφ)
PTH in ethanol
288.15 − 1.05 − 73.63 0.12
298.15 − 2.71 − 65.09 0.13
308.15 − 3.76 − 71.08 0.16
318.15 − 4.83 − 71.05 0.07
PTH in ternary ethanol solution of ChCl:Gly (0.5 mol kg-1)
288.15 − 1.90 − 75.83 − 0.85 0.11
298.15 − 2.86 − 75.57 − 0.15 0.13
308.15 − 3.94 − 73.47 − 0.18 0.21
318.15 − 4.49 − 77.56 0.34 0.10
PTH in ternary ethanol solution of ChCl:Gly (1 mol kg-1)
288.15 − 3.54 − 42.28 − 2.49 0.06
298.15 − 4.84 − 50.47 − 2.13 0.09
308.15 − 6.26 − 49.74 − 2.50 0.07
318.15 − 7.73 − 54.31 − 2.90 0.09
PTH in ternary ethanol solution of ChCl:Gly (1.5 mol kg-1)
288.15 − 4.40 − 32.00 − 3.35 0.06
298.15 − 5.92 − 41.48 − 3.21 0.05
308.15 − 7.60 − 38.55 − 3.84 0.05
318.15 − 9.45 − 35.34 − 4.62 0.08
PTH in ternary ethanol solution of ChCl:EG (0.5 mol kg-1)
288.15 − 3.42 − 69.69 − 2.37 0.08
298.15 − 3.87 − 68.05 − 1.16 0.07
308.15 − 4.83 − 60.95 − 1.07 0.06
318.15 − 5.22 − 65.56 − 0.39 0.08
PTH in ternary ethanol solution of ChCl:EG (1 mol kg-1)
288.15 − 5.22 − 26.42 − 4.17 0.04
298.15 − 6.66 − 26.60 − 3.95 0.06
308.15 − 8.42 − 25.73 − 4.66 0.07
318.15 − 10.15 − 29.64 − 5.32 0.08
PTH in ternary ethanol solution of ChCl:EG (1.5 mol kg-1)
288.15 − 6.11 − 35.13 − 5.06 0.10
298.15 − 7.61 − 35.35 − 4.90 0.08
308.15 − 9.37 − 36.41 − 5.61 0.10
318.15 − 11.33 − 40.50 − 6.50 0.10

Standard uncertainty (u) for DESs composition was estimated to be less than 5·10–2 mol ratio.