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Calcium ferrocyanide

Anti-caking Agent 538 Calcium ferrocyanide 0.025 25th p 8 Not evaluated... [Pg.268]

A saturated solution of ferrocyanide is used at a temperature of 20° C. The Deutsche G-old und Silber Scheidean-stalt modify the process by addition of calcium ferrocyanide which prevents the contamination of the end-product with alkali. H. von Hayek3 has examined the process, and shown that a 100 per cent, yield may be obtained if a high current density be used and the anode rotated, whilst the electrolyte is kept alkaline to prevent the formation of free ferrocyanic acid. [Pg.28]

Calcium ferrocyanide, Ca2Fe(CN)e.dH20 (where =11,5 or 12,6), may be obtained by boiling Prussian blue with the calculated quantity of milk of lime. It is also formed when hydrogen cyanide is passed into a suspension of lime and ferrous hydroxide in water. The salt crystallises m pale yellow triclinic prisms, which are more soluble in cold water than in hot. [Pg.208]

The osmotic pressures of solutions of calcium ferrocyanide in water have been determined for various concentrations,5 and the results indicate that the negative radicles are associated, yielding the double ion [Fe(CN)6]2"""". [Pg.208]

Calcium ammonium ferrocyanide, (NH4)2CaFe(CN)6, results on mixing cold concentrated solutions of calcium chloride and ammonium ferrocyanide, in equimolecular proportions, washing the precipitate and drying in air or at 100° C. It also results on boiling potassium calcium ferrocyanide (see p. 219) with water containing a large excess of ammonium chloride.7... [Pg.208]

Potassium calcium ferrocyanide, K2CaFe(CNT)6, is obtained by mixing cold concentrated solutions of potassium ferrocyanide and calcium chloride in molecular proportions. The precipitate is washed in cold water and dried m air or at 100° C. [Pg.219]

Calcium ferricyanide, Ca3 [Fe(CN) 6] 2( )12H20, may be obtained 9 by oxidising aqueous calcium ferrocyanide with calcium plumbate and carbon dioxide under pressure, at the ordinary temperature. The solid salt is separated by evaporation under reduced pressure. The salt may also be obtained by oxidation of calcium ferrocyanide with chlorine 10 and by neutralising ferricyanic acid with calcium carbonate. It yields needle-shaped crystals, which are stable in dry air. [Pg.221]

Direct measurements of the osmotic pressure of concentrated solutions by means of semipermeable membranes have been carried out with considerable accuracy for solutions of cane sugar and similar substances, and also for calcium ferrocyanide, by Lord Berkeley and Hartley, and by Morse, Frazer, and their collaborators. As is shown in the tables, the measurements Landolt-Bomstein, 4th edition. [Pg.283]

Other sugars were also employed, and in later papers an account is given of similar very accurate measurements both of osmotic pressure and lowering of vapour pressure, due to calcium ferrocyanide m water, this salt being a very soluble one, and one which at the same time is practically stopped by the copper-ferrocyanide semi-permeable membrane (Earl of Berkeley, E G J Hartley, and C V Burton, PM Trans, 209 A, 177, 1909 Dilute solutions ofthe same solute were also investigated by the Earl of Berkeley, E G J Haitley, and J Stephenson, ibid, p 319 ) For details the reader is again referred to the ongmal papers The object of the work referred to was to test Porter s equation This equation will be taken later... [Pg.240]

Vapour Pressure and Osmotic Pressure of Concentrated Calcium Ferrocyanide Solutions at o° C... [Pg.244]

It may be converted to calcium ferrocyanide by treating with ferrous sulfate ... [Pg.326]

Yellow prussiate of calcium Yellow prussiate of lime. See Calcium ferrocyanide Yellow prussiate of potash. See Potassium ferrocyanide... [Pg.4735]

Bentonite Calcium caprate Calcium caprylate Calcium carbonate Calcium chloride Calcium ferrocyanide Calcium hydrogen carbonate Calcium laurate Calcium metasilicate Calcium monocarbonate Calcium myristate Calcium oleate Calcium oxide Calcium palmitate Calcium phosphate dibasic... [Pg.4817]

Sodium diisobutyl dithiophosphate Sodium diisopropyl dithiophosphate Sodium di-(methylamyl) dithiophosphate Stearyl hydroxyethyl imidazoline flotation collector, zinc sulfide ore Sodium di-s-butyl dithiophosphate flotation depressant Acacia Calcium ferrocyanide Carboxymethylcellulose sodium Hydrofluoric acid Potassium ferricyanide Potassium ferrocyanide Sodium metabisulfite flotation depressant, copper ores Dicyandiamide Guanidine nitrate 2-Mercaptoethanol Phosphorus pentasulfide Quinolinic acid... [Pg.5296]

See other pages where Calcium ferrocyanide is mentioned: [Pg.39]    [Pg.258]    [Pg.1222]    [Pg.154]    [Pg.152]    [Pg.167]    [Pg.214]    [Pg.219]    [Pg.265]    [Pg.406]    [Pg.80]    [Pg.81]    [Pg.81]    [Pg.216]    [Pg.244]    [Pg.319]    [Pg.135]    [Pg.705]    [Pg.697]    [Pg.680]    [Pg.683]    [Pg.4818]    [Pg.5634]    [Pg.6812]    [Pg.7038]    [Pg.311]    [Pg.779]    [Pg.743]    [Pg.777]    [Pg.697]   
See also in sourсe #XX -- [ Pg.208 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 ]

See also in sourсe #XX -- [ Pg.311 ]



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Ferrocyanide

Potassium calcium ferrocyanide

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