Fe2SO43

Fe2SO43 is the chemical formula for iron(III) sulfate. It is an inorganic compound that exists as a pale yellow or white solid. Iron(III) sulfate can be formed by the reaction of iron(III) oxide with sulfuric acid. This compound is soluble in water, forming acidic solutions. Its anhydrous form is known as the mineral rhomboclase.

Iron(III) sulfate has various applications. It is used in water treatment as a flocculant, helping to remove impurities. It also finds use in the production of pigments, particularly for ceramics and paints, where it imparts a reddish-brown color. In medicine, it has been historically used for its astringent properties. Furthermore, iron(III) sulfate can act as a catalyst in certain organic reactions.

The compound is typically prepared industrially by oxidizing iron(II) sulfate, often a byproduct of steel pickling. Alternatively, it can be synthesized by dissolving iron in sulfuric acid and then oxidizing the resulting iron(II) sulfate. The properties of iron(III) sulfate, such as its solubility and reactivity, make it a versatile chemical with a range of industrial and historical uses.