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Calcium ferrocyanide information


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 Edit this at Wikidata
EC Number
  • 237-508-9
E number E538 (acidity regulators, ...)
PubChem CID
  • 166920
UNII
  • 906D36VLZG
CompTox Dashboard (EPA)
  • DTXSID80930018 Edit this at Wikidata
InChI
  • InChI=1S/6CN.2Ca.Fe/c6*1-2;;;/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
GHS07: Exclamation mark
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)
NFPA 704 four-colored diamondHealth (blue): no hazard codeFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
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]

  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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Calcium ferrocyanide

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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...

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Potassium ferrocyanide

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Younes. (2018). "Re-evaluation of sodium ferrocyanide (E 535), potassium ferrocyanide (E 536) and calcium ferrocyanide (E 538) as food additives". EFSA Journal...

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Sodium ferrocyanide

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Younes. (2018). "Re-evaluation of sodium ferrocyanide (E 535), potassium ferrocyanide (E 536) and calcium ferrocyanide (E 538) as food additives". EFSA Journal...

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Anticaking agent

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sodium ferrocyanide 536 potassium ferrocyanide 538 calcium ferrocyanide 542 calcium phosphate 550 sodium silicate 551 silicon dioxide 552 calcium silicate...

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Cyanide

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their complexation with iron, ferrocyanides (Sodium ferrocyanide E535, Potassium ferrocyanide E536, and Calcium ferrocyanide E538) do not decompose to lethal...

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Prussian blue

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Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula FeIII 4[FeII (CN) 6] 3. Turnbull's...

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List of inorganic compounds

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– CaCl2 Calcium chromate – CaCrO4 Calcium cyanamide – CaCN2 Calcium fluoride – CaF2 Calcium hydride – CaH2 Calcium hydroxide – Ca(OH)2 Calcium monosilicide...

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List of food additives

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preservative Calcium ferrocyanide – anti-caking agent Calcium formate – preservative Calcium fumarate – food acid Calcium gluconate – acidity regulator Calcium guanylate...

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International Numbering System for Food Additives

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agent 535 A E U sodium ferrocyanide anti-caking agent 536 A E U potassium ferrocyanide anti-caking agent 538 E U calcium ferrocyanide anti-caking agent 540...

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E number

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in the EU. E537 Ferrous hexacyanomanganate anti-caking agent E538 Calcium ferrocyanide anti-caking agent Approved in the EU. E539 Sodium thiosulfate antioxidant...

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Ammonium cyanide

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cyanide is made by heating a mixture of potassium cyanide or potassium ferrocyanide with ammonium chloride and condensing the vapours into ammonium cyanide...

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Sodium chloride

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Cheshire. Prior to distribution it is mixed with <100 ppm of sodium ferrocyanide as an anticaking agent, which enables rock salt to flow freely out of...

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Wine chemistry

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sulphite Sequestrants fresh lees potassium ferrocyanide calcium phytate citric acid Stabilisation calcium tartrate potassium bitartrate yeast mannoproteins...

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Blue pigments

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pigment containing iron and cyanide produced by the oxidation of ferrous ferrocyanide salts. It was invented in Berlin between 1704 and 1710. It had an immediate...

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Electrolysis

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occurs at the cathode. It is possible to reduce ferricyanide ions to ferrocyanide ions at the cathode: Fe(CN)3- 6 + e− → Fe(CN)4- 6 Neutral molecules can...

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Acids in wine

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permitted for removing excess iron and copper from the wine if potassium ferrocyanide is not available. Acetic acid is a two-carbon organic acid produced in...

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Reducing agent

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Cl 2 → 2 [Fe(CN)6]3− + 2 Cl− The reducing agent in this reaction is ferrocyanide ([Fe(CN)6]4−). It donates an electron, becoming oxidized to ferricyanide...

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Salt

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the recommended iodine content of iodized salt is 10–22 ppm. Sodium ferrocyanide, also known as yellow prussiate of soda, is sometimes added to salt as...

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List of CAS numbers by chemical compound

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13587–35–4 Cu2C2 copper(I) acetylide 1117–94–8 Cu2Fe(CN)6 copper(II) ferrocyanide 13601–13–3 Cu2O copper(I) oxide 1317–39–1 Cu2P2O7 copper(II) pyrophosphate...

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Electrochemical coloring of metals

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procedure (250 - 300 gr of chromium anhydride, 1 - 5 gr of potassium ferrocyanide, 20 - 100 A/dm2, max. 25 C) Thomas O'Conor Sloane, The Standard Electrical...

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Solubility table

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8 Barium chromate BaCrO4 2.775×10−4 Barium cyanide Ba(CN)2 80 Barium ferrocyanide Ba2Fe(CN)6 0.009732 Barium fluoride BaF2 0.159 0.16 0.161 Barium fluorosilicate...

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Warm little pond

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for this scenario due to the precipitation and dissolution of sodium ferrocyanide salts in these environments, which were likely to have been common on...

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Qualitative inorganic analysis

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these ions is by testing flame colour: barium gives a yellow-green flame, calcium gives brick red, and strontium, crimson red. Cations which are left after...

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Iodised salt

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not approved by the US FDA. Anti-caking agents such as calcium silicate and sodium ferrocyanide, which prevent clumping. Worldwide, iodine deficiency affects...

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Manganese peroxidase

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catalytic cycle. MnP Compound I can be used to oxidize free Mn(II), ferrocyanide, as well as phenolics, and other aromatic compounds. Mn(III) is unstable...

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Electrical telegraph

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moving paper tape soaked in a mixture of ammonium nitrate and potassium ferrocyanide, decomposing the chemical and producing readable blue marks in Morse...

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Iron

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complexes, sandwich and half-sandwich compounds. Prussian blue or "ferric ferrocyanide", Fe4[Fe(CN)6]3, is an old and well-known iron-cyanide complex, extensively...

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Chemistry set

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Powdered iron Sodium bisulfate Sodium bisulfite Sodium carbonate Sodium ferrocyanide Sodium silicate Sodium thiosulfate Strontium chloride Strontium nitrate...

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Metal nitrosyl complex

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+ H2O Nitric acid is used in some preparations of nitroprusside from ferrocyanide: HNO3 + [Fe(CN)6]4- → [Fe(CN)5(NO)]2- + OH− + OCN− Some anionic nitrito...

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