ferric ammonium ferrocyanide in gold extraction

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Iron in Cyanidation -Ferrocyanide Compounds

The alkali metal and alkaline earth metal and ammonium ferrocyanides are soluble in water. Typical of these are potassium ferrocyanide, K4Fe(CN)6, calcium ferrocyanide Ca2Fe(CN)6, and ammonium ferrocyanide, (NH4)4Fe(CN)6.

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CYANIDE DESTRUCTION - sgs.com

SGS MINERALS SERVICES – T3 SGS 018 05-2005 CYANIDE DESTRUCTION CYANIDE DETOXIFICATION Most gold plants around the world are required by law to destroy cyanide and

Prussian blue - Wikipedia

Prussian blue is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the idealized chemical formula Fe 7 18. Another name for the color is …

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ferric ammonium ferrocyanide in gold extraction

APPLICATION OF ION EXCHANGE RESINS IN GOLD ... The application of macroporous strong base resins to cyanide recovery from ... of ethyl ammonium quaternary groups results in a remarkable low iron uptake. ... blue like compounds in the presence of ferrocyanide ion poisons the resin.

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Ferrocyanides Usage & Applications

In the other process, gases containing hydrogen sulfide are washed with a suspension of ferric ferrocyanide stabilized by ammonium salts. It is reported that sulfur is precipitated and ferrous ferrocyanide formed. The latter then may be oxidized back to the ferric …

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Ammonium ferrocyanide | C6H16FeN10 - PubChem

/SRP:/ D003; A solid waste containing ammonium ferrocyanide may become characterized as a hazardous waste when subjected to testing for reactivity as stipulated in 40 CFR 261.23, and if so characterized, must be managed as a hazardous waste.

Ammonium ferric citrate - Revolvy

Ammonium ferric citrate has the formula (NH)[Fe(CHO)]. A distinguishing feature of this compound is that it is very soluble in water, in contrast to ferric citrate which is not very soluble. In its crystal structure each citric acid moiety has lost four protons, and the deprotonated hydroxyl groups

When potassium ferro cyanide and ferric ammonium …

Probably, depending on the thermodynamics, I would assume that the ammonia goes into solution as an ion as does the potassium. Looking at the Wikipedia article, the formula for Ferric Hexacyanoferrate is Fe7(CN)18(H2O)x.

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