Potassium Hydroxide,The material shall be in the form of pellets or flakes free from visible impurities.,Total Alkalinity as KOH, percent by mass 87.0 (Min). Potassium Hydroxide (KOH) is a strong, highly alkaline inorganic compound supplied in flakes, pellets, or solution form. It is white, hygroscopic, and readily soluble in water, producing a highly caustic solution. KOH is widely used in chemical manufacturing, pH control, neutralization, soap and detergent production, fertilizers, batteries, and various industrial cleaning and processing applications.