DETAILED NOTES ON PRINCIPLE INVOLVED IN LIMIT TEST FOR HEAVY METALS

Strategy D is predicated on the precipitation of comparatively insoluble and characteristically coloured sulphides of heavy metals when aqueous remedies are treated with alkali metal sulphides (NaSH). NaSH is produced right away prior to use by heating thioacetamide with sodium hydroxide solution.This test is predicated about the response of thiogl

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