Calcium ferrocyanide

Calcium ferrocyanide
Names
	Other names Dicalcium hexakis(cyano-κC)ferrate(4-);
Identifiers
CAS Number	13821-08-4;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.034.085
EC Number	237-508-9;
E number	E538 (acidity regulators, ...)
PubChem CID	166920;
UNII	906D36VLZG;
CompTox Dashboard (EPA)	DTXSID80930018 ;
	InChI InChI=1S/6CN.2Ca.Fe/c61-2;;;/q6-1;3*+2 Key: BAZQCHGUTMBXBU-UHFFFAOYSA-N;
	SMILES [C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Ca+2].[Ca+2].[Fe+2];
Properties
Chemical formula	C6Ca2FeN6
Molar mass	292.109 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H315, H319, H332, H335
Precautionary statements	P261, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P332+P313
NFPA 704 (fire diamond)	0 0
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Calcium ferrocyanide is an inorganic compound with the formula Ca₂[Fe(CN)₆]. It is the Ca²⁺ salt of [Fe(CN)₆]^4-, ferrocyanide complex ion. A yellow solid, it is used as a precursor to the pigment Prussian blue.^[1]

^ Gail, E.; Gos, S.; Kulzer, R.; Lorösch, J.; Rubo, A.; Sauer, M.; Kellens, R.; Reddy, J.; Steier, N.; Hasenpusch, W. (2011). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_159.pub3. ISBN 978-3527306732.

[Ullmann-1] Gail, E.; Gos, S.; Kulzer, R.; Lorösch, J.; Rubo, A.; Sauer, M.; Kellens, R.; Reddy, J.; Steier, N.; Hasenpusch, W. (2011). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_159.pub3. ISBN 978-3527306732.

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