[C:1]([O-:8])(=[O:7])[CH2:2][CH2:3][C:4]([O-:6])=[O:5].[Na+:9].[Na+].C(O)(=O)CCC(O)=O.[S:19](=[O:23])(=[O:22])([OH:21])[OH:20].C(O)C.C([O-])(=O)CCC([O-])=O.[Na+].[Na+]>C(O)C>[C:1]([OH:8])(=[O:7])[CH2:2][CH2:3][C:4]([OH:6])=[O:5].[S:19]([O-:23])([O-:22])(=[O:21])=[O:20].[Na+:9].[Na+:9]A mixture of 10.02 g of 200 proof ethanol and 0.502 g of 98% sodium succinate was prepared and heated to 30° C. These quantities allowed for a final solution of 10 wt % succinic acid in ethanol to be obtained upon acidification. The solubility of succinic acid in ethanol at 30° C. is about 12 wt %. Sulfuric acid (H2SO4) (0.338 g, 98%) was added to the ethanol/sodium succinate slurry with stirring to produce free succinic acid and sodium sulfate.
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