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]
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Other names
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3D model (JSmol)
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ECHA InfoCard | 100.034.085 |
EC Number |
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E number | E538 (acidity regulators, ...) |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C6Ca2FeN6 | |
Molar mass | 292.109 g·mol−1 |
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H302, H312, H315, H319, H332, H335 | |
P261, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P332+P313 | |
NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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It was listed in 2012 by the EU as a "Food Improvement Agent".
In the EU, ferrocyanides (E 535–538) were, as of 2018, solely authorised in two food categories as salt substitutes. Kidneys are the organ for ferrocyanide toxicity.[2]
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