This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...insoluble in acids. Excess of reagent converts this into Ferrous Ferrocyanid, Fe2(Fe(CN)6). This, thru oxidation, becomes rapidly blue in color, Ferric Ferrocyanid, Fe4(Fe(CN)6)3 (Prussian Blue), being formed. 227. Potassium Ferricyanid, K3Fe(CN)6, produces a dark blue precipitate of Ferrous Ferricyanid, Fe3(Fe(CN)6)2, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...insoluble in acids. Excess of reagent converts this into Ferrous Ferrocyanid, Fe2(Fe(CN)6). This, thru oxidation, becomes rapidly blue in color, Ferric Ferrocyanid, Fe4(Fe(CN)6)3 (Prussian Blue), being formed. 227. Potassium Ferricyanid, K3Fe(CN)6, produces a dark blue precipitate of Ferrous Ferricyanid, Fe3(Fe(CN)6)2, (TurnbuU's Blue), mixed with Potassium Ferric Ferrocyanid. The precipitate is insoluble in acids. 228. Dry Ferrous Compounds, heated in a Borax Bead in the oxidizing flame, produce, while hot, a yellow to red bead, which on cooling becomes lighter in color or colorless. Fused in the reducing flame yield a bottle-green bead. IRON In FERRIC Compounds A solution of Ferric Chlorid, FeCl3, may be used for the following tests: TESTS 229. Ammonium Sulphid, (NH4)2S, or Hydrogen Sulphid, H2S, form Fe2S3 only when added to Ferric Hydroxid, Fe(OH)3, in the presence of an alkali. With acid solutions part of the Sulphid is reduced to FeS, and Sulphur, S, is precipitated (2FeCl3 + H2S-- 2FeCl2 + 2HCl + S). The precipitate is black, insoluble in alkali hydroxids; soluble in acids. 230. Potassium and Sodium Hydroxids, KOH and NaOH, produce bulky, reddish-brown precipitates of Ferric Hydroxid, Fe(OH)3, insoluble in excess of the precipitant and in Ammonium salts, but soluble in Hydrochloric, Nitric and Sulphuric Acids, HCl, HNO3, and H2SO4. 231. Ammonium Hydroxid, NH4OH, produces the same result as the preceding. 232. Potassium Thiocyanate, KCNS, produces an intense blood-red coloration, due to the formation of Ferric Thiocyanate, Fe(CNS)3. 233. Potassium Ferrocyanid, K4Fe(CN)6, produces a dark blue precipitate of Ferric Ferrocyanid, Fe4(Fe(CN)6)3 (Prussian Blue), insoluble in Hydrochloric Acid, HCl, but decomposed by alkali hydroxids. 234. Potassium Fer...
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 500grams, ISBN: