Aluminum sulfate, also known as alum or aluminium sulphate, is a chemical compound with the formula Al2(SO4)3. It is obtained as a white crystalline solid or in powdered form. Aluminum sulfate is soluble in water and exhibits acidic properties. It is commonly used in various industries due to its versatility and wide range of applications. This compound finds use in wastewater treatment, paper manufacturing, textile industry, and as a flocculating agent in drinking water purification.