: a dark purple salt KMnO4 used as an oxidizer and disinfectant
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One area of improvement is a reduction of potassium permanganate, which was recently added to the ZDHC Chemical Watch List.—Angela Velasquez, Footwear News, 6 May 2026 Indeed, laser technology has revolutionized denim finishing, enabling companies to achieve worn and aged effects without potassium permanganate and manual scraping.—Meghan Hall, Sourcing Journal, 24 Feb. 2026 The air purifiers use carbon filters to remove hydrogen sulfide and other gases, plus potassium permanganate filters to clear pathogens.—Walker Armstrong, San Diego Union-Tribune, 13 Dec. 2025