| http://www.w3.org/ns/prov#value | - In spite of these and other methods, there is a long felt need at the present time for a process to remove hexavalent chromium from an aqueous solution of alkali metal chlorate by the selective reduction of the hexavalent chromium, without reduction of alkali metal chlorate, at a pH value which results in the separation of chromium compounds as for example an insoluble trivalent chromium hydroxide
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