Iron(III) sulfate, also known as ferric sulfate, is a chemical compound with the 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. This compound is produced by the oxidation of iron(II) sulfate and is soluble in water. In addition to its industrial uses, iron(III) sulfate can also serve as a mordant in dyeing processes and is utilized in the production of pigments and other chemical compounds.