... /T 3688-2000 Specifications: Potassium Hydroxide HG/T 3688-2000 KOH.....90. 0 % min K2CO3 .....0. 5 % max Chloride (cl).... 0. 005 ... in alkaline batteries industry ,high-class detergents and cosmetics, Industrialsoaps, potassium chemicals, medicine intermediate, synthetic rubber, ABS resin, natural rubber latex ...