Solubilities of six lithium salts in five non-aqueous solvents and in a few of their binary mixtures
- Author(s): Xin, N
- Sun, Y
- He, M
- Radke, CJ
- Prausnitz, JM
- et al.
Published Web Locationhttps://doi.org/10.1016/j.fluid.2017.12.034
© 2018 Elsevier B.V. Solubilities were measured from 25 to 45 °C for six lithium salts (LiF, LiCl, LiBr, LiNO3, LiTFSI and LiPF6) in five pure non–aqueous solvents (ethanol, acetonitrile, dimethyl carbonate, dimethyl sulfoxide and propylene carbonate) and in a few of their binary mixtures (ethanol + DMSO, DMC + DMSO and DMC + PC). The experimental method uses a Varian inductively–coupled plasma–optical–emission spectrometer (ICP–OES). Solubilities increase with rising temperature. At a given temperature, LiNO3 shows the highest solubility in all solvents. Salt solubilities follow the order LiNO3 > LiTFSI > LiBr > LiCl > LiPF6 > LiF. The dissolving abilities of the solvents are in the order ethanol > DMSO > acetonitrile > PC > DMC. Coupled with the salt's melting temperature and enthalpy of fusion, liquid–phase activity coefficients for salts were obtained from the solubility data.
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