Manual of Chemical Analysis As Applied to the Examination of Medicinal Chemicals. A Guide For the Determination of their Identity and Quality. by Frederick Hoffmann.
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. 1873 Excerpt: ...in warm hydrochloric acid diluted with half its volume of water, forming a yellow solution, which, when diluted with water, gives only a white turbidity with hydrosulphuric acid, and a blue precipitate with potassium ferrocyanide, but no reaction with ferricyanide; when completely precipitated by alkaline hydrates, the ...
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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. 1873 Excerpt: ...in warm hydrochloric acid diluted with half its volume of water, forming a yellow solution, which, when diluted with water, gives only a white turbidity with hydrosulphuric acid, and a blue precipitate with potassium ferrocyanide, but no reaction with ferricyanide; when completely precipitated by alkaline hydrates, the filtrate should be colorless, and should render no reaction either with ammonium sulphydrate or with sodium carbonate (evidence of the absence of zinc, magnesium, and calcium). Examination: Alkaline sulphates may be detected by agitating the ferric hydrate with a little warm water, and acidulating the filtrate with one drop of hydrochloric acid, and testing it with barium chloride. Copper may be detected by a blue coloration of solution of ammonium sesqui-carbonate, when agitated with the ferric hydrate, and subsequently filtered; its presence may be confirmed or recognized, when the result of the preceding test is uncertain, by over-saturating the filtrate with acetic acid, and testing it with potassium ferrocyanide; a reddish-brown precipitate would indicate or confirm copper. FERRI OXIDUM MAGNETICUM. FERRI OXIDUM NIGRUM. FERRUM OXYDULATO-OXYDATUM. JethiOPS MARTIALIS. Black Magnetic Oxide of Iron. Ferro-Ferric Hydrate. A brownish-black or black powder, destitute of taste, and attracted by the magnet; heated in the air, it gives off water, absorbs oxygen, and forms red ferric oxide. It dissolves readily and completely, without effervescence, upon warming, in a mixture of equal parts of water and hydrochloric acid, forming a yellowish solution which gives a blue precipitate with both potassium ferrocyanide and ferricyanide, and a white turbidity with hydrosulphuric acid. Examination: Alkaline Sulphates or Chlorides.--About one drachm of the f...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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All Editions of Manual of Chemical Analysis as Applied to the Examination of Medicinal Chemicals: A Guide for the Determination of Their Identity and Quality and for the Detection of Impurities and Adulterations: For the Use of Pharmaceutists, Physicians, Druggists, and
