Abstract
Based on the solubilities of potassium fluoride (KF) in some aprotic polar solvents, such as tributyl phosphate, dimethyl sulfoxide, N,N-dimethylacetamide and 1,4-dioxane at temperatures ranging from 300.87 to 359.50 K, the solubility equation with two parameters was correlated with the experimental data. The dissolution enthalpy and dissolution entropy had been calculated from the solubility data. The interactions between solute and solvent were discussed. It provided the basic data for preparation of 2,3,4,5-tetrafluorobenzoic acid.
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