| Ammonium ferric citrate | |
|---|---|
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| IUPAC name |
2-Hydroxypropane-1,2,3-tricarboxylate, ammonium iron(3+) salt
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| Other names | Ferric ammonium citrate; Ammonium Iron(III) Citrate; Ammonium ferric citrate; Iron ammonium citrate; Prothoate+ |
| Identifiers | |
| CAS number | 1185-57-5 |
| PubChem | 3080636 |
| EC number | 214-686-6 |
| ATC code | V08 |
| Properties | |
| Molecular formula | C6H5+4yFexNyO7 |
| Molar mass | Variable |
| Appearance | Reddish-brown powder |
| Hazards | |
| MSDS | ExternalMDSS |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
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This article needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (July 2009) |
Ammonium ferric citrate is a food additive with E number E381 used as an acidity regulator[citation needed]. It is a green or reddish-brown powder which is very soluble in water.
Other uses for ammonium ferric citrate include water purification and printing (cyanotype). 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.
Ammonium ferric citrate is present in Scottish carbonated soft drink Irn-Bru.
In medicine, ammonium ferric citrate is used as a contrast medium.
Contents |
Toxicology
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This section requires expansion. |
Compendial status
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This section requires expansion. |
See also
- Ammonium citrate tribasic [2]
- Food additive
- List of food acidity regulators
- List of food additives
Notes
- ^ Therapeutic Goods Administration. "Chemical Substances". http://www.tga.gov.au/docs/pdf/aan/aanchem.pdf. Retrieved 27 July 2009.
- ^ The United States Pharmacopeial Convention. "Revisions to FCC Sixth Edition 2S". http://www.usp.org/fcc/2009-06-19_Revisions_to_FCC_2S.html. Retrieved 27 July 2009.
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