Ferric sulfate

Ferric sulfate (CAS 10028-22-5), also known as ferric sulfate anhydrous, is an iron-based inorganic salt used industrially as a coagulant, oxidizing agent, and catalyst precursor.

Where is Ferric sulfate used?

• Water treatment: primary coagulant removing suspended solids, phosphates and heavy metals from effluent
• Mining: oxidizes sulfide ores during heap leaching in copper and gold recovery
• Textile and leather: mordant and fixative binding dyes to fiber substrates
• Pharmaceuticals: astringent and hemostatic agent in topical formulations
• It also serves as a catalyst precursor in select organic synthesis routes.

Commercial specifications

• Solution concentrations typically 40–50% by weight for water treatment
• Purity specifications vary by end use; higher-purity grades for pharmaceutical and specialty chemical applications