Ammonium ferric citrate.html |
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| Ammonium ferric citrate | |
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| Other names | Ammonium Iron(III) Citrate; Ammonium ferric citrate;
Iron ammonium citrate; 2-Hydroxy-1,2,3-Propanetricarboxylic Acid, Ammonium Iron (3+) Salt; Prothoate+; and Iron (II) ammonium citrate |
| Identifiers | |
| CAS number | 1185-57-5 |
| EINECS number | |
| Properties | |
| Molecular formula | C6H8O7·nFe·nH3N |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Ammonium ferric citrate is a food additive. It is a green or reddish-brown powder which is very soluble in water.
Ammonium ferric citrate is used as an additive in the Scottish soft drink Irn-Bru. Other uses for ammonium ferric citrate include water purification and printing. It is used as a reducing agent of metal salts of low activity like gold and silver and is also in a commonly used recipe with potassium ferricyanide to make cyanotype prints. Ammonium ferric citrate is also used in Kligler iron deeps to determine hydrogen sulfide production in microbial metabolism.
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