Abstract
Ion-exchange resins have been employed to separate Cr (III) and Cr (VI) present in the water decomposition product of ethereal blue perchromate prepared with 5-Sulphosalicylic acid. The quantitative estimations of Cr (III) and Cr (VI) present in cationic and anionic portions of the decomposition product have been determined by the usual Volumetric and Gravimetric methods. The experimental results and ratios between Cr (III) and Cr (VI) are in agreement with formula (CrIIISu)3[CrIII(CrVI2O7)3] for the water decomposition product corresponding to parent blue perchromate, (CrIIISu)3[CrIII(CrVI2O103], where Su is bivalent Sulphosalicylate ion.
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