Tomas, Renato;Kinart, Zdzislaw;Tot, Aleksandar;Papovic, Snezana;Teodora Borovic, Teona;Vranes, Milan published 《Volumetric properties, conductivity and computation analysis of selected imidazolium chloride ionic liquids in ethylene glycol》 in 2022. The article was appeared in 《Journal of Molecular Liquids》. They have made some progress in their research.Safety of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride The article mentions the following:
In this paper, the influence of the side chain length of five ionic liquids (ILs): 1-methylimidazolium chloride ([C0mim][Cl]), 1,3-dimethylimidazolium chloride ([C1mim][Cl]), 1-ethyl-3-methylimidazolium chloride ([C2mim][Cl]), 1-butyl-3-methylimidazolium chloride ([C4mim][Cl]) and 1-hexyl-3-methylimidazolium chloride ([C6mim][Cl]) on the interactions with ethylene glycol (EG) was studied. Based on the measurement of d. and elec. conductivity of the ionic liquid + EG mixture in the temperature range (278.15-313.15) K, the values of apparent molar volume, standard partial molar volumes, apparent molar volume at infinite dilution, Masson′s interaction coefficient, thermal expansion coefficient, limiting apparent molar expansibilities, Heppler′s coefficient, ion association constants, thermodn. parameters of ion-pair formation as well as diffusion coefficient was calculated Exptl. results were supported by mol. dynamic simulations. With the increase of the side chain length, from C0mim+ to C6mim+ cation, ion-dipole interactions on the solvation process decrease, and the influence of solvophobic solvation increases. Ionic liquids [C0mim][Cl] and [C1mim][Cl] show structure-breaker properties, [C4mim][Cl] and [C6mim][Cl] structure-making properties in EG solutions, while [C2mim][Cl] is borderline. The values of ion association constants in EG are higher than in water. The ion association process is spontaneous for all ionic liquids and entropy-driven. The experimental procedure involved many compounds, such as 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) .
1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a starting material for the preparation of 1-ethyl-3-methylimidazolium chloride/tetrafluoroborate (EMI.Cl.BF4) molten salt for electrochemical studies; a solvent as well as catalyst for the depolymerization of oak wood lignin.Safety of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem