Diphosphoric acid, iron(3+) salt (3:4); Iron pyrophosphate; Iron(3+) pyrophosphate; Pyrophosphoric acid, iron(3+) salt (3:4); Iron(III) pyrophosphate; Tetrairon tris(pyrophosphate); [ChemIDplus]
Phosphates, Metallic Salts
Nonahydrate: Yellowish-white solid, practically insoluble in water; [Merck Index] Beige crystalline solid; [MSDSonline]
Used as a catalyst, textile fireproofing agent, corrosion-resistant pigment, and medication (iron deficiency anemia); [Merck Index]
May cause irritation; [MSDSonline] See "Iron oxide (Fe2O3)."
Industrial Processes with risk of exposure: