Ammonium ferric citrate
| Produktname | Ammonium ferric citrate |
|---|---|
| CAS-Nummer | 1185-57-5 |
| Molekülformel | C6H8FeNO7 (varies with hydration) |
| Molekulargewicht | 261.97 g/mol (anhydrous basis) |
| Aussehen | Reddish-brown to amber crystalline powder or granules |
| Assay | 16.5–18.5% Fe (dry basis) |
| Löslichkeit | Freely soluble in water, practically insoluble in ethanol |
| Trocknungsverlust | ≤ 12.0% |
| Schwermetalle | ≤ 10 ppm |
| Verpackung | 25 kg fiber drums, inner polyethylene bags |
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Synonyms: Ferric ammonium citrate, Ammonium iron(III) citrate, Iron ammonium citrate, FAC, CAS 1185-57-5
Ammonium ferric citrate is a water-soluble iron(III) complex formed by the reaction of ferric citrate with ammonium citrate. It appears as reddish-brown crystals or granules, is freely soluble in water, and is available in both pharmaceutical and food-grade qualities. The compound is prized for its high bioavailability and excellent stability in aqueous solutions, making it a preferred iron source in liquid formulations.
In the pharmaceutical and nutraceutical industries, it is widely used as an iron supplement for treating iron-deficiency anemia, often incorporated into syrups and drops. As a food additive (INS 381), it serves as an acidity regulator and iron fortifier. Additionally, it finds applications in photography, water treatment, and as a catalyst in organic synthesis. Its compatibility with a wide range of excipients and its neutral taste profile make it particularly suitable for pediatric and geriatric formulations.
| Parameter | Technische Daten |
|---|---|
| Assay (Fe) | 16.5–18.5% |
| Identification | Passes test |
| Trocknungsverlust | ≤ 12.0% |
| Schwermetalle | ≤ 10 ppm |
| Arsenic | ≤ 3 ppm |
| Mercury | ≤ 1 ppm |
| Microbial Limits | Total aerobic count ≤ 1000 CFU/g |
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