| Catalog No. | NR5482 |
| CAS Number | 1185-57-5 |
| Chemical Formula | C6H8O7·xFe·yNH3 |
| Molecular Weight | 261.975 |
| Appearance | Red to brown or green powder |
| Purity | 99% |
Ammonium Iron (III) Citrate (C6H8O7·xFe·yNH3) is a versatile chemical reagent available on the Stanford Chemicals platform, catering to laboratory research, pharmaceutical synthesis, and a range of chemical applications.
Ammonium Iron (III) Citrate is a common organic iron compound widely used as a food additive and iron supplement. It exhibits excellent bioavailability, effectively addressing iron-deficiency anemia while maintaining high safety standards, making it ideal for daily iron supplementation. Additionally, it serves as a coagulant in water and wastewater treatment processes. The iron ions bind with suspended particles and colloids, facilitating their removal from water and thus contributing to water purification.
From a chemical structure perspective, the iron in Ammonium Iron Citrate exists in the ferric (Fe³⁺) state, with citrate acting as a ligand that chelates the iron. This molecular configuration enhances iron absorption in the human body while minimizing gastrointestinal irritation, making it a preferred choice in nutritional and industrial applications.
| Molecular Formula | C6H8O7·xFe·yNH3 |
| Appearance | Red to brown or green powder |
| Density | 1.8 g/cm3 |
| Molecular Weight | 261.975 |
| Water Solubility |
1200 g/L (20℃) |
| Iron Salt | Bioavailability | GI Irritation | Stability | Price |
| Ferric Ammonium Citrate | High (~90%) | Low | Excellent | Moderate |
| Ferrous Sulfate | Moderate (60-70%) | High | Fair | Low |
| Ferrous Gluconate | High (~80%) | Moderate | Fair | Moderate |
| Amino Acid-Chelated Iron | High (80-90%) | Moderate | Good | High |
2. How is ammonium iron citrate extremely bioavailable?
Its good solubility in water is enhanced by increased intestinal absorption. Citric acid chelation of iron ions facilitates the ready transport and absorption of iron within the body.