The Chemistry Of The Radio-elements Volume 1 by Frederick Soddy

The Chemistry Of The Radio-elements Volume 1

byFrederick Soddy

Paperback | October 12, 2012

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...the quantity of uranium varies usually from 10 yo to 20 /o, and may reach as high as 30 %. Chemical Properties.--Like iron, uranium forms two series of salts corresponding with the oxides UO2 and UO3. The common black oxide U3Og, formed by heating other oxides in air or oxygen, is regarded as a compound of these, UO2+ 2UO3. The higher oxide is acidic, like chromic oxide, CrO3, and forms salts with alkalies, known as the uranates, having usually analogous composition to that of the di-chromates, as, for example, Na2U2O7 and K2U2O?. Uranium is, however, less acidic than molybdenum and tungsten, the other members of the family. Salts of the lower oxide UO2, as, for example, UC14, are not usually met with in ordinary work, as, like ferrous salts, they are powerful reducing agents, and are readily oxidised even by air. In absence of iron, uranium may be conveniently estimated by reducing it in sulphuric acid solution by zinc or magnesium, and tri-trating the solution with permanganate. The uranous salts are usually green. The commonest compounds of uranium, however, are the uranyl compounds, which are usually yellow. These contain the divalent radical (UO2), and are derived from the higher oxide UO3, just as sulphuryl chloride SO2C12 may be regarded as derived from SOg. Thus in acting on the higher oxide UO with hydrochloric acid, the product is uranyl chloride (UO2C12). Uranyl nitrate, UO2(NO3)2+ 6H2O, is the commonest salt, and is distinguished by its magnificent crystals, showing a yellow-green fluorescence, and by the readiness with which it crystallises from concentrated aqueous solution. This is the method by means of which uranium salts are usually purified on a large scale. The crystals melt in their water of crystallisation at about...

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Title:The Chemistry Of The Radio-elements Volume 1Format:PaperbackDimensions:52 pages, 9.69 × 7.44 × 0.11 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:021738000X

ISBN - 13:9780217380003

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