Ferric Ammonium Citrate (FAC), also called ammonium ferric citrate, is an iron-containing citrate salt. It is commonly supplied as a green or brown powder, depending on composition and grade.
Main uses
1. Pharmaceuticals & iron supplementation
* Used as a source of iron in iron supplements and some pharmaceutical preparations.
* Can be used to treat or prevent iron deficiency, depending on the formulation and medical direction.
2. Food & nutritional products
* Used as an iron fortificant in certain foods and nutritional products.
* The citrate form can provide relatively soluble iron.
3. Water treatment
* Can serve as an iron source/coagulant-related chemical in some water-treatment applications, although ferric chloride and ferric sulfate are much more common.
* Ferric ions can help with removal of suspended