Solubility of 3,3′-(Oxidi-2,1-ethanediyl)bis[1-methyl-imidazolium] Dihexafluorophosphate in Water, Methanol, Ethanol, Acetone, and Acetonitrile and Binary Mixtures (Water + DMF) from (283.00 to 323.00) K

Jia Rong Guo, Bin Xu, Yan Wang, Ling Hua Zhuang, Guo Wei Wang

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Abstract

3,3′-(Oxidi-2,1-ethanediyl)bis[1-methyl-imidazolium] dihexafluorophosphate ([C4O(mim)2][PF6]2) was synthesized and confirmed with 1H NMR and FT-IR. The thermal stability of [C4O(mim)2][PF6]2 was studied with differential scanning calorimetry and thermogravimetric analyses. Using the dynamic method, the solubility of [C4O(mim)2][PF6]2 in five different pure solvents (water, methanol, ethanol, acetone, and acetonitrile) and binary mixtures (water + DMF) was measured at the temperature range from (283.00 to 323.00 K) at atmospheric pressure. The solubility of [C4O(mim)2][PF6]2 in those selected solvents increased with increasing temperature and DMF contents, but the rate of solubility is different. The experimental data were correlated with the modified Apelblat equation. Also, the solubility of [C4O(mim)2][PF6]2 and [C6O2(mim)2][PF6]2 was been compared in the same solvent. (Graphical Presented).

Original languageEnglish
Pages (from-to)1091-1097
Number of pages7
JournalJournal of Chemical and Engineering Data
Volume60
Issue number4
DOIs
StatePublished - 9 Apr 2015

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