Ammonium ferric citrate

• Ammonium citrate
• Ammonium -iron- III-2 -hydroxy- 1,2,3- propanetricarboxylate
• Ferriammoniumcitrat

Dark brown, almost odorless solid

Fixed

Very well in water (1200 g · l-1 at 20 ° C)

2000 mg · kg -1 ( LD50, rat, oral)

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Ammonium iron (III ) citrate, also known as ammonium citrate, ferric ammonium citrate, Ferriammoniumcitrat or lemon acidic iron, non-stoichiometric forms, depending on the iron content of green (14,5 - 16% Fe) to brown ( 16.5 to 28 % Fe) readily water-soluble crystals, the smell slightly of ammonia. The sparingly soluble in ethanol crystals deliquesce in air and decompose by ( sun) light.

Use

It is mainly used for photosensitization. With solutions of ammonium citrate, tartaric acid and silver nitrate impregnated materials can be used as Photopositive with brown tones.

Ammonium iron (III ) citrate is used in both the cyanotype as well as in medicine, in this case for the treatment of iron deficiency anemia.

Representation

Ammonium iron (III ) citrate may be prepared by neutralization of citric acid with iron ( III) hydroxide, and ammonia.