potassium hydroxide

Potassium hydroxide (KOH) is a white, deliquescent solid that dissolves in water to form a strongly alkaline and caustic liquid. It is primarily used in making soap and as a reagent.1

Potassium, a chemical element and alkali metal, is essential for plant and animal life. It was first isolated by Sir Humphry Davy in 1807 through the electrolysis of molten potassium hydroxide. Potassium metal is soft, white, and a good conductor of heat and electricity. It is the seventh most abundant element in Earth's crust.2

Most commercial potassium compounds, often called potash, are derived from ancient lake beds and seabeds. Potassium chloride (KCl) is a key source for other potassium compounds, including potassium hydroxide. Potassium hydroxide is used in producing liquid soaps and detergents and in preparing other potassium salts.2