Calcium Ferrocyanide (E538)

Type of additive
(Glossary)		Acidity Regulators Anti-caking Agents
E NumberE538
Chemical FormulaC6Ca2FeN6
Also Known AsDicalcium hexakis(cyano-κC)ferrate(4-)

Purpose and Function

Calcium ferrocyanide is primarily used as a nutritional supplement in food applications:

  • Colorant: Sometimes used for its color properties in food formulations.
  • Improves Shelf Life: By preventing oxidation in food products, it helps enhance shelf life.

Potential Risks and Side Effects

Calcium ferrocyanide is generally regarded as safe for consumption in regulated amounts. However, some concerns include:

  • Gastrointestinal Issues: High concentrations may lead to gastrointestinal discomfort, including nausea or vomiting.
  • Toxicity in Excess: In excessive amounts, it can be toxic, necessitating careful regulation in food applications.
  • Contaminants: Sourcing from reputable suppliers is essential to minimize the risk of contaminants in food formulations.