Iron(III) pyrophosphate is an inorganic chemical compound with the formula Fe₄(P₂O₇)₃.

Synthesis

Anhydrous iron(III) pyrophosphate can be prepared by heating the mixture of

iron(III) metaphosphate Iron () is a chemical element with Symbol (chemistry), symbol Fe (from la, Wikt:ferrum, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 element, group 8 of the periodic table. It is, Abundance ...

and

iron(III) phosphate Iron(III) phosphate, also ferric phosphate, is the inorganic compound with the formula Fe PO4. Several related materials are known, including four polymorphs of FePO4 and two polymorphs of the dihydrate FePO4·(H2O)2. These materials find few ...

under

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

with the stoichiometric ratio 1:3. The reactants can be prepared by reacting iron(III) nitrate nonahydrate with

phosphoric acid Phosphoric acid (orthophosphoric acid, monophosphoric acid or phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula . It is commonly encountered as an 85% aqueous solution, w ...

. It can be also prepared via the following reaction: : 3 Na₄P₂O₇(aq) + 4 FeCl₃(aq) → Fe₄(P₂O₇)₃(s) + 12 NaCl(aq)

References

External links

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