Abstract:Raymond B. Stringfield, in discussing the sodium manganate process for the manufacture of potassium permanganate, points out certain solubility effects which are interesting from both the practical and the theoretical standpoint. In the course of the process potassium permanganate is separated by crystallization from a mother liquor which contains, in addition to permanganate, a small percentage of free alkali and varying quantities of the sulfates, chlorides and carbonates of sodium and potassium. Stringfield… Show more
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