Thermodynamic investigation on the aqueous mixtures of choline chloride/propylene glycol deep eutectic solvent at T = (293.15 to 313.15) K

Table 1 Some details of the purity and chemical structure of the employed materials^a

Material	Mass fraction purity^a	Source	Chemical formula	Molar mass/g mol⁻¹
Propylene glycol (PG)	0.995	Scharlau Chemie	C₃H₈O₂	76.09
Choline chloride (ChCl)	> 0.999	Daejung, Korea	C₅H₁₄NClO	139.62
Deionized water		Made in our laboratory	H₂O	18.02

ISSN: 2661-801X