FERRIC AMMONIUM CITRATE
Prepared at the 28th JECFA (1984), published in FNP 31/2 (1984) and in FNP 52 (1992). Metals and arsenic specifications revised at the 63rd
JECFA (2004). A PMTDI of 0.8 mg/kg bw for iron was established at the 29th JECFA (1985).
SYNONYMS Iron ammonium citrate, ammonium ferric citrate, ammonium iron citrate, ammonium iron (III) citrate, INS No. 381
DEFINITION A complex salt of undetermined structure, composed of iron, ammonia and citric acid; there are two types of salts - brown and green - containing different amounts of iron
Chemical names Ferric ammonium citrate, ammonium iron (III) citrate
Assay Not less than 16.5% and not more than 22.5% of iron (Fe) for the brown salt, and not less than 14.5% and not more than 16.0% of iron (Fe) for the green salt.
DESCRIPTION Brown salt: thin, transparent brown, reddish brown, or garnet red scales or granules, or a brownish yellow powder; odourless or has a slight ammoniacal odour
Green salt: thin, transparent green scales, granules, powder, or transparent green crystals; odourless
FUNCTIONAL USES Nutrient, dietary supplement (brown salt) Nutrient, dietary supplement, anticaking agent for sodium chloride(green salt)
