765207-04-3

Basic information

• Product Name: iron(III) phosphate
• Synonyms: iron(III) phosphate
• CAS NO: 765207-04-3
• Molecular Weight: 150.818
• Mol File: 765207-04-3.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: iron(III) phosphate(CAS DataBase Reference)
• NIST Chemistry Reference: iron(III) phosphate(765207-04-3)
• EPA Substance Registry System: iron(III) phosphate(765207-04-3)

Safety Data

• Hazardous Substances Data: 765207-04-3(Hazardous Substances Data)

Upstream product

• 7722-76-1 ammonium dihydrogen phosphate 
• 12185-10-3 phosphorus 
• 7782-50-5 chlorine 

Downstream Products

• 7647-01-0 hydrogenchloride 
• 10049-21-5 sodium dihydrogenphosphate 
• 1345-25-1 iron(II) oxide 
• 7705-08-0 iron(III) chloride 
• 10026-13-8 phosphorus pentachloride 
• 10025-87-3 trichlorophosphate 
• 26508-33-8 iron monophosphide 
• 7439-89-6 iron(II) 
• 10058-44-3 ferric pyrophosphate 

Relevant articles and documents

Thermoanalytical study of iron(III) phosphate obtained by homogeneous precipitation from different media

Amorphous iron(III) phosphate has been synthesised by homogeneous precipitation from equimolecular Fe(NH4)2(SO 4)2·6H2O and NH4H 2PO4 aqueous, water-ethanol and water-iso-propanol solutions at pH=2.0 and ambient temperature using hydrogen peroxide as precipitating agent. The precipitates have been characterised by TG/DTG/DTA techniques, chemical analysis, X-ray powder diffraction (XRD) analysis and scanning electron microscopy (SEM). The presence of ethanol and iso-propanol in the precipitation medium suppressed the co-precipitation of ferric sulphate as it does in aqueous medium. Thermal treatment of the as-precipitates at 750°C in air yields a crystalline quartz-like structured FePO4 with markedly different morphological features.

Thermal stability of the soil minerals destinezite and diadochite Fe 3+2(PO4)(SO4)(OH)·6H 2O - Implications for soils in bush fires

Thermogravimetry combined with evolved gas mass spectrometry has been used to ascertain the stability of the soil minerals destinezite and diadochite Fe3+2(PO4)(SO4)(OH)·6H 2O. These two minerals are identical except for their morphology. Diadochite is amorphous whereas destinezite is crystalline. Both minerals are found in soils. It is important to understand the stability of these minerals because soils are subject to bush fires especially in Australia. The thermal analysis patterns of the two minerals are similar but not identical. Subtle differences are observed in the DTG patterns. For destinezite, two DTG peaks are observed at 129 and 182 °C attributed to the loss of hydration water, whereas only a broad peak with maximum at 84 °C is observed for diadochite. Higher temperature mass losses at 685 °C for destinezite and 655 °C for diadochite, are due to sulphate decomposition, based upon the ion current curves. This research has shown that at low temperatures the minerals are stable but at high temperatures, as might be experienced in a severe bush fire, the minerals decompose.