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Ammonium ferric citrate has the formula (NH4)5[Fe(C6H4O7)2]. A distinguishing feature of this compound is that it is very soluble in water, in contrast to ferric citrate which is not very soluble.

Ammonium ferric citrate
Ammoniumeisen(III)-citrat V7.svg
Structure of ammonium ferric citrate
Ammonium ferric citrate dihydrate structure.png
Crystal structure of (NH4)5[Fe(C6H4O7)2]·2H2O[1]
Names
IUPAC name
2-Hydroxypropane-1,2,3-tricarboxylate, ammonium iron(3+) salt
Other names
Ferric ammonium citrate
Ammonium iron(III) citrate
Ammonium ferric citrate
Iron ammonium citrate
FerriSeltz
Identifiers
ChEBI
ChEMBL
ECHA InfoCard 100.013.351
EC Number 214-686-6
E number E381 (antioxidants, ...)
KEGG
Properties
C6H8O7xFe3+yNH3
Appearance yellow crystals
Pharmacology
V08CA07 (WHO)
Hazards
Safety data sheet [1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

In its crystal structure each citric acid moiety has lost four protons, and the deprotonated hydroxyl groups act as ligands together with four carboxylate groups; two carboxylate groups are not coordinated to the ferric ion.[1]

UsesEdit

Ammonium ferric citrate has a range of uses, including:

See alsoEdit

ReferencesEdit

  1. ^ a b Matzapetakis, M.; Raptopoulou, C. P.; Tsohos, A.; Papaefthymiou, V.; Moon, N.; Salifoglou, A. (1998). "Synthesis, Spectroscopic and Structural Characterization of the First Mononuclear, Water Soluble Iron−Citrate Complex, (NH4)5Fe(C6H4O7)2·2H2O". J. Am. Chem. Soc. 120 (50): 13266–13267. doi:10.1021/ja9807035.
  2. ^ "KEGG DRUG: Ferric ammonium citrate".
  3. ^ Budavari, Susan, ed. (2001), The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (13th ed.), Merck, ISBN 0911910131