Used as a coagulant in wastewater treatment, an etchant in printed circuit board manufacturing, and a reagent in organic synthesis. Also employed in pigment and dye production.

Corrosive and may cause burns; handle with acid-resistant PPE. Avoid contact with metals and strong bases.

Delivered in 25 kg bags (solid) or 200 kg drums (solution). Store dry and protected from moisture in corrosion-resistant containers.