Abstract

The extraction of phytic acid was performed mostly by means of hydrochloric acid containing sodium sulphate. Trichloroacetic acid (TCA) was also recommended as an extractant. The concentration of TCA was widely varied to reach complete extraction. As the minimum solubility of iron phytate was found in the range of pH 2.5−8.0 the question arises whether a quantitative precipitation of the complex takes place at lower pH. The paper is concerned with the conditions of maximum precipitation of iron phytate from a TCA-containing extract

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