Iron(II) chloride is used in the synthesis of iron complexes like iron(II) hydroxide. It acts as a precursor to hydrated iron(III) oxides that are magnetic pigments. It serves as a reducing agent in organic synthesis. Also, used as a reducing flocculating agent in wastewater treatment, especially for wastes containing chromate. It is used as an intermediate, in pigments, processing aids and in solids separation agents.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.