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Iron(III) phosphate

Compounds
Iron(III) phosphate, also ferric phosphate, is the inorganic compound with the formula FePO₄. Four polymorphs of anhydrous FePO₄ are known. Additionally two polymorphs of the dihydrate FePO₄·(H₂O)₂ are known. These materials have attracted much... Wikipedia
Formula: FePO₄
Molar mass: 150.82 g/mol
Solubility in water: anhydrous: insoluble; dihydrate: 0.642 g/100 mL (100 °C)
3D model (JSmol): Interactive image
Appearance: yellow-brown solid
Density: 3.056 g/cm3 (anhydrous); 2.87 g/cm3 (20 °C, dihydrate)
Heat capacity (C): 180.5 J/mol·K (dihydrate)