Iron(II) carbonate

iron(II) carbonate
Names
	Other names ferrous carbonate
Identifiers
CAS Number	563-71-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	10774 ;
ECHA InfoCard	100.008.418
E number	E505 (acidity regulators, ...)
PubChem CID	11248;
UNII	MZ3Q72U52O ;
CompTox Dashboard (EPA)	DTXSID8052225 ;
	InChI InChI=1S/CH2O3.Fe/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Key: RAQDACVRFCEPDA-UHFFFAOYSA-L;
	SMILES C(=O)([O-])[O-].[Fe+2];
Properties
Chemical formula	FeCO3
Molar mass	115.854 g/mol
Appearance	white powder or crystals
Density	3.9 g/cm3
Melting point	decomposes
Solubility in water	0.0067 g/L; Ksp = 1.28 × 10−11
Solubility product (Ksp)	3.13×10−11
Magnetic susceptibility (χ)	+11,300·10−6 cm3/mol
Structure
Crystal structure	Hexagonal scalenohedral / Trigonal (32/m) ; Space group: R 3c, a = 4.6916 Å, c = 15.3796 Å
Coordination geometry	6
Related compounds
Other anions	iron(II) sulfate
Other cations	copper(II) carbonate, zinc carbonate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Iron(II) carbonate, or ferrous carbonate, is a chemical compound with formula FeCO
₃, that occurs naturally as the mineral siderite. At ordinary ambient temperatures, it is a green-brown ionic solid consisting of iron(II) cations Fe²⁺
and carbonate anions CO²⁻
₃.

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