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Little information concerning titration of inorganic salts in nonaqueous solutions has been available.Inorganic salts have been found to be acidic, neutral, or basic when dissolved in glacial acetic acid.A method for the determination of this behavior is described.Many cations of basic inorganic salts can be titrated potentiometrically or visually using perchloric acid in p-dioxane as titrant.Salts containing chloride, bromide, or iodide anions are acidic in glacial acetic acid. These are converted to basic salts by the addition of mercuric acetate, and thus are titratable with perchloric acid. The proposed method permits the direct titration of a great number of inorganic salts (if soluble in glacial acetic acid).

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of the anion exchange resin in tertbutyl alcohol.By paper strip chromatography as described by Stark and coworkers (9), with an authentic sample of malic acid for comparison, it was shown that the fermentation containing 30% weak acids (Table III) contained only one weak acid which had the same R¡ value as a malic acid. This finding confirmed a statement by Lemjahov (6) that fumaria acid fermentations often contain malic acid.