Ferric sulfate is an inorganic compound with the chemical formula Fe2(SO4)3. It appears as a yellowish-brown solid and is commonly used in various industrial applications, including water treatment and as a coagulant in the purification of drinking water. It helps remove impurities by causing them to clump together, making them easier to filter out. In addition to its use in water treatment, ferric sulfate is also utilized in the production of pigments and as a catalyst in chemical reactions. It can be found in some fertilizers and is important in the manufacturing of certain types of paper.