Iron(II) phosphate

Iron(II) phosphate, also ferrous phosphate,[3] Fe3(PO4)2, is an iron salt of phosphoric acid.

Iron(II) phosphate
Names
IUPAC name
Iron(II) phosphate
Other names
Ferrous phosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.035.456
EC Number
  • 239-018-0
UNII
  • InChI=1S/3Fe.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6 checkY
    Key: SDEKDNPYZOERBP-UHFFFAOYSA-H checkY
  • [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Fe+2].[Fe+2].[Fe+2]
Properties
Fe3(PO4)2
Appearance brown powder
Density 2.61 g/cm3 (octahydrate)
Melting point 180 °C (356 °F; 453 K) (octahydrate) decomposes[1]
insoluble
Structure
monoclinic (octahydrate)
C 2/m
a = 10.086 (octahydrate), b = 13.441 (octahydrate), c = 4.703 (octahydrate)
α = 90°, β = 104.27°, γ = 90°
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P280, P304+P340, P305+P351+P338, P405, P501
NFPA 704 (fire diamond)
[2]
NFPA 704 four-colored diamond
2
1
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Natural occurrences

The mineral vivianite is a naturally occurring form of hydrated iron(II) phosphate.

Production

It can be formed by the reaction of ferrous hydroxide with phosphoric acid to produce hydrated iron(II) phosphate.

See also

References
  1. "iron(II) phosphate octahydrate". chemister.ru. Retrieved 2 July 2014.
  2. "Safety Data Sheet". fishersci.com. Retrieved 12 August 2023.
  3. "Iron(II) Phosphate". EndMemo.com. Retrieved 22 January 2016.

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