Sodium hexacyanoferrate

The Stock Oxidation-Number System. Stock sought to correct many nomenclature difficulties by introducing Roman numerals in parentheses to indicate the state(s) of oxidation, eg, titanium(II) chloride for TiCl2, iron(II) oxide for FeO, titanium(III) chloride for TiCl, iron(III) oxide for Fe203, titanium(IV) chloride for TiCl, and iron(II,III) oxide for Fe O. In this system, only the termination -ate is used for anions, followed by Roman numerals in parentheses. Examples are potassium manganate(IV) for K2Mn02, potassium tetrachloroplatinate(II) for K PtCl, and sodium hexacyanoferrate(III) for Na3Fe(CN)3. Thus a set of prefixes and terminations becomes uimecessary. 

The industrial production of Prussian blue is based on the reaction in aqueous solution of sodium hexacyanoferrate(n), Na4Fe(CN)6, with iron(n) sulfate, FeS04-7H20 in the presence of an ammonium salt, which results initially in the formation of the colourless insoluble iron(n) hexa-cyanoferrate(n) (Berlin white). Prussian blue is generated by subsequent oxidation with a dichromate or chlorate. 

Chrome green is produced by mechanically mixing chrome yellow and iron blue pigments in water. An iron blue, [Fe(NH4) (FeCN6)], is an oxidized precipitate product of the reaction between an aqueous solution of iron sulfate and ammonium sulfate with sodium hexacyanoferrate. 

Sodium graphite reactor, 17 571 Sodium halides, 22 763, 765, 822-829. See also Sodium chloride Sodium heat exchangers, 22 763 Sodium hemiphosphate, 18 833 Sodium heptagermanate, 12 553 Sodium hexacyanoferrate decahydrate (YPS), 22 810... 

Potassium hexacyanoferrate(II) or sodium hexacyanoferrate(II) or mixtures of these salts are usually used. When the pure sodium salt or a calcium hexacyanofer-... 

Cyanide ion, and hence nitrogen in the sample, may be detected by the Prussian Blue test. The filtered alkaline solution, resulting from the action of water upon the sodium fusion, is treated with iron(n) sulphate and thus forms sodium hexacyanoferrate(n). Upon boiling the alkaline iron(n) salt solution, some iron(m) ions are inevitably produced by the action of air upon addition of dilute sulphuric add, thus dissolving the iron(n) and (hi) hydroxides, the hexa-cyanoferrate(n) reacts with the iron(m) salt producing iron(m) hexacyano-ferrate(n), Prussian blue ... 

Synonyms Sodium ferrocyanide decahydrate Sodium hexacyanoferrate Sodium hexacyanoferrate (II) Yellow prussiate of soda... 

Sodium 3-[2-(2-heptyl-4,5-dihydro-1 H-imidazol-1-yl) ethoxy] propionate. See Sodium capryloamphopropionate Sodium hexacyanoferrate Sodium hexacyanoferrate (II). See Sodium ferrocyanide... 

Sodium Hexacyanoferrate sodium ferricyamide, aq. 20 60 8 Resistant <3 <0.5 Hostalen PP Hoechst Celanese Specimen 50X25X1 mm (2X1X0.04 in) from press-molded sheets to DIN 53455... 

Sodium Chromate Polystyrene, Impact (IPS) 4 Sodium Hexacyanoferrate ... 

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