... sterilization, etc . third, Analytics reagents, bleach, hair removal agent and antioxidant . forth, Used for cotton, hemp, silk ... leather storage of mouldproof preservatives. sixth, Antimicrobial agent; Tap water purifying agent; Disinfectants; Bleach. Same with bleach, but ... chemical raw materials manufacturing. Can make wool emphasizes agent, deodorization agent.. New Bleaching Powder 28%-35%