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

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

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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