Chromium(III) sulfate is a chemical compound with the formula Cr2(SO4)3. It consists of chromium in the +3 oxidation state and sulfate ions. This compound is typically found as a greenish or purple solid and is soluble in water. It is commonly used in various industrial applications, including dyeing, tanning leather, and as a mordant in textile processing. In addition to its industrial uses, chromium(III) sulfate plays a role in the production of chromium metal and other chromium compounds. It is also studied for its potential applications in catalysis and as a source of chromium in nutritional supplements, although its safety and efficacy in such uses require careful consideration.