Iron Ammonium Citrate

Iron(III) ammonium citrate [1185-57-5] is of indefinite stoichiometry. A brown hydrated compound [1332-98-5] of iron(III) ammonium citrate contains 16.5—18.5% iron, - 9% ammonia, and 65% citric acid. A green hydrated compound [1333-00-2] contains 14.5—16% iron, 1% ammonia, and 75% citric acid. Iron ammonium citrates are water soluble but are insoluble in alcohol. The compounds are used to fortify bread, milk, and other foods (see... 

Iron Iron ammonium citrate, iron carbonate, chloride, gluconate,... 

Synonyms Ammoniocitrate of iron, Ammonium citrate, Iron citrate, Soluble ferric citrate. Appearance Clear green crystals. Occurs also as brown scales, but green scales are preferred for photographic purposes. 

Ammonium ferric citrate. See Iron ammonium citrate... 

FAC. See Iron ammonium citrate Facet . See Quinclorac Fad GMS, Fad GMS/E-A, Fad GMS/SE. See Glyceryl stearate Fadlan. See Lanolin acid Factitious air. See Nitrous oxide Faex. See Yeast Yeast extract Faktis 10, Faktis 14, Faktis Asolvan, Asolvan T, Faktis Badenia C Faktis HF Braun. See Sulfur Faktis R, Weib MB. See Sulfur chloride Faktis RC 110, RC 111, RC 140, RC 141, RC 144. See Sulfur... 

Ferric ammonium citrate Ferric ammonium citrate, green. See Iron ammonium citrate Ferric ammonium EDTA Synonyms Ammonium ferric EDTA Ethylenediaminetetraacetic acid, ammonium ferric salt... 

Sodium stannate Stannic chloride blueprint photography Iron ammonium citrate blush retarder, lacquers Ethoxyethanol acetate P-naphthol mfg. 

Ferric pyrophosphate Ferric sodium pyrophosphate Ferrous fumarate Ferrous gluconate Ferrous gluconate dihydrate Ferrous lactate Ferrous sulfate anhydrous Ferrous sulfate heptahydrate Ferrous sulfate monohydrate Fumaric acid D-Gluconic acid Glucose L-Glutamic acid hydrochloride L-Glutamine Glycine Histidine hydrochloride monohydrate L-Histidine Inositol Iron Iron ammonium citrate... 

Copper hydroxide (ic) Copper iodide (ous) Cupric sulfate anhydrous Ferric chloride Ferric chloride hexahydrate Ferrous sulfate anhydrous L-Glutamine Griseofulvin L-Histidine Iodine Iron ammonium citrate Manganese acetate (ous) Manganese chloride (ous), tetrahydrate Manganese citrate (ous) Phenothiazine... 

Ferric citrate Iron ammonium citrate Manganese chloride (ous), tetrahydrate Potassium chloride Taurine infection control agent, enteric veterinary medicine... 

Histidine hydrochloride monohydrate L-Histidine Hydrolyzed gelatin Inositol Iron Iron ammonium citrate DL-lsoleucine L-lsoleucine L-Leucine ... 

Iron ammonium citrate (green) 1333-39-7 Eltesol PA 65 Eltesol PSA 65 Phenolsulfonic acid PSA... 

FIGURE 15.21 Drying of different iron salts applied by spin-coating on silicon wafers, the surface of which is hydrophiUc due to treatment with an aqueous H2O2-NH solution. Top left iron(II) ammonium sulfate top right ironflll) chloride. Bottom left iron nitrate bottom right iron ammonium citrate. 

To establish the interaetion of the impregnating solutions with the surface of silica supports, Terorde measured the amount of water required to completely remove different iron salts applied onto the surface of silicagel in a column chromatograph [41], It appeared that an elution volume of water of 5.0 ml was required to remove the iron ammonium citrate, and of 6.2 ml to remove the Mohr s salt. Iron(III) chloride called for an elution volume of 6.3 ml, and iron(III) nitrate for a volume of 7.7 ml. Apparently, the iron species in the initially impregnated solution of iron ammonim citrate does not interact strongly with the silica surface. The relatively small interaction of the iron(III) complex of citric acid with the surface of silica indicates that the presence of the citric acid affects the adsorbed layer of water molecules that remains within the partially dried impregnated support. A thicker, less mobile layer of water molecules, citric acid anions, and iron(III) ions remains than without citric acid, where a layer of about six fairly mobile water molecules is present. 

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