Ferric ammonium oxalate (ammonium ferrioxalate, ammonium tris(oxalato)ferrate) is the

ammonium Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) polyatomic ion, molecular ion with the chemical formula or . It is formed by the protonation, addition of a proton (a hydrogen nucleu ...

salt of the anionic trisoxalato

coordination complex A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of chemical bond, bound molecules or ions, that are in turn known as ' ...

of iron(III). It is a precursor to iron oxides, diverse

coordination polymer Coordination may refer to: * Coordination (linguistics), a compound grammatical construction * Coordination complex, consisting of a central atom or ion and a surrounding array of bound molecules or ions ** A chemical reaction to form a coordinat ...

s, and

Prussian Blue Prussian blue (also known as Berlin blue, Brandenburg blue, Parisian and Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula . It consists of cations, where iron is in the oxidat ...

. The latter behavior is relevant to the manufacture of blueprint paper. Ferric ammonium oxalate has also been used in the synthesis of superconducting salts with bis(ethylene)dithiotetrathiafulvalene (BEDT-TTF), see Organic superconductor.

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External links

* http://www.chemblink.com/products/13268-42-3.htm * http://chemicalland21.com/specialtychem/perchem/FERRIC%20AMMONIUM%20OXALATE.htm Ammonium compounds Iron(III) compounds Oxalato complexes Double salts {{Inorganic-compound-stub

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