Platinum sponge

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(Chem.) metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.
(Chem.) See under Platinum.

See also: Platinum, Sponge

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Technological scheme envisages hydrometallurgi-cal refining of platinum with production of platinum sponge to be remelted in an induction furnace for production of platinum in ingots.