Potassium hydrate, also known as potassium hydroxide, is a chemical compound made up of one potassium atom and one hydrogen atom bonded to an oxygen atom. It is a strong alkali and is commonly used in the production of soap, detergents, and various chemicals. Other synonyms for potassium hydrate include caustic potash, potash lye, and potassium hydroxide solution. Potash lye is often used in agriculture to improve crop yield and soil quality. The compound has numerous industrial and commercial applications and is a vital ingredient in many products including petrochemicals, textiles, and batteries.