Calcium Ferrocyanide E538
crystallization aid — Primarily synthetic.
Calcium ferrocyanide (Ca2[Fe(CN)6])
CAS: 13821-08-4
Factual Regulatory Reference
This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.
? Did You Know?
Beyond food, Calcium Ferrocyanide is also used in cosmetics, medicine, industrial applications, household products. Its versatility makes it one of the most multi-purpose chemical compounds in everyday life.
Detailed Regulatory Assessment
European Union (EFSA)
Restricted to use in salt and salt substitutes only. Same maximum levels as other ferrocyanides.
Official EFSA LinkUnited States (FDA)
Limited to 13 ppm in table salt.
Japan (MHLW)
Restricted use with maximum limits.
Acceptable Daily Intake (ADI)
International Standard (JECFA)
mg/kg body weight per day
European Standard (EFSA)
Natural Occurrence
This additive is not known to occur naturally in significant quantities.
Manufacturing
Produced by reacting sodium or potassium ferrocyanide with calcium chloride. Like other ferrocyanides, the hexacyanoferrate complex is extremely stable with cyanide groups tightly bound to iron.
Applications Beyond Food
Not used.
Not used.
Limited industrial use compared to sodium and potassium ferrocyanides.
Present in table salt.