Solvent Extraction Study of Mercury(II) with Zolon Red (HZR)

Abstract

Abstract Zolon Red, Mercury(II) The extraction of mercury(II) from the aqueous solutions of mercury(II) nitrate and mercury(II) chloride with zolon red (HZR) dissolved in w-butanol has been studied. The extraction of mercury (II) from the aqueous nitrate system has been found to be much better compared to that from the aqueous chloride system in the pH range of 1 to 6. The extraction of mercury with zolon red is simple, fast and selective. The composition of the extracted mercury zolon red compound has also been studied. Regeneration of the extracting solution of zolon red is readily achieved by stripping the mercury(II) with an aqueous cyanide solution.