PURE Potassium Hydroxide Flakes - 2 LB (Caustic Potash Anhydrous KOH Dry) SUPER HIGH Quality & Potency. Potassium Hydroxide is water soluble, making it preferable for the environment CONVENIENT bottle with child proof cap. CAS# 1310-58-3 HUNDREDS of Uses! An important chemical compound for the agricultural industry, potassium hydroxide is often used to regulate pH in acidic soil GREAT FOR Soap Production, Electrolyte, Glass Production, Cleaners, Petroleum Industries, Bio-diesels & More! EXTREMELY VERSATILE cleaning agent found in denture cleaners, oven cleaners, driveway and concrete cleaners, oven cleaners and more! Can help improve drilling and well efficiency as well as the refining process.The reaction of potassium hydroxide with oils and fats in heat is called saponification, making it useful for creating soft soaps.