Ferrous sulfate

Ferrous Sulfate (CAS 7720-78-7, formula FeSO4) is an inorganic iron salt commercially known under trade names including Feosol, Irospan, Duretter, and Conferon. It carries EC number 231-753-5 and is classified within the Salts & Minerals category, with HS code 28332910 applicable for customs and trade documentation.

In water treatment, Ferrous Sulfate acts as a coagulant and reducing agent, precipitating phosphates and neutralizing excess chlorine in municipal and industrial effluents. In agriculture, it corrects iron-deficiency chlorosis in soils by releasing bioavailable Fe²⁺ ions upon dissolution. Pharmaceutical formulations use it as an iron supplement active, leveraging its controlled solubility for oral dosage delivery.

Ferrous Sulfate is supplied in anhydrous, monohydrate, and heptahydrate grades, with quality standards available to Ph.Eur., FCC, and technical specifications. The substance is registered under REACH and requires an SDS compliant with EU Regulation 1907/2006. Packaging typically includes 25 kg bags and bulk quantities for industrial procurement.