Calcium ferrocyanide

Calcium ferrocyanide (CAS 13821-08-4), also designated E538, is an inorganic ferrocyanide salt used commercially as an anti-caking agent and chelating compound.

Where is Calcium ferrocyanide used?

• Water treatment: precipitates and removes heavy metal contaminants
• Removes lead and other transition metals from industrial effluents and process water streams
• Mining and metallurgical operations: selective metal recovery and separation
• Printing and packaging: pigment precursor and processing aid in stable iron-based colorants
• Salt and mineral blends: anti-caking additive that prevents clumping in bulk mineral products

Good to know: Food-grade specification conforms to European Union food additive regulations; technical grade is also offered for industrial water treatment and mining.

Commercial specifications

• Packaging from small bags to bulk quantities