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Solubilities of six lithium salts in five non-aqueous solvents and in a few of their binary mixtures

Journal Article · · Fluid Phase Equilibria
 [1];  [1];  [2];  [3];  [3]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering; Xi'an Jiaotong Univ., Xi'an, Shannxi (China). MOE Key Lab. of Thermo-Fluid Science and Engineering
  2. Xi'an Jiaotong Univ., Xi'an, Shannxi (China). MOE Key Lab. of Thermo-Fluid Science and Engineering
  3. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
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. Finally, coupled with the salt's melting temperature and enthalpy of fusion, liquid–phase activity coefficients for salts were obtained from the solubility data.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1571100
Journal Information:
Fluid Phase Equilibria, Journal Name: Fluid Phase Equilibria Journal Issue: C Vol. 461; ISSN 0378-3812
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Perspective—Semi-Solid Electrolytes Based on Deep Eutectic Solvents: Opportunities and Future Directions journal January 2020
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