The Chemical Analysis of Steel-works' Materials

Paperback | January 10, 2012

byFred Ibbotson

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This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1920. Not illustrated. Excerpt: ... until the beaker is quite cold, results frequently in a cracked vessel and a wrecked assay.] Next add from 20 to 30 c.c. hydrochloric acid and heat the mixture until the ferric sulphate is completely dissolved, and then finish the operation, which should occupy not more than an hour, as'above. ESTIMATION IN PIG IRON. Of white irons, weigh the same amount as for steels; in the case of mottled and grey irons, one gram is ample, and the amount of acids used is proportionately diminished. The nitro-sulphuric mixture is the better one to employ, and the procedure is exactly the same as for steels up to the process of ignition. This operation in the case of grey irons requires a longer time in order to burn out the associated graphitic carbon completely, and ought in all cases to be followed by a treatment of the residue with hydrofluoric and sulphuric acids. ESTIMATION IN HIGH-SPEED STEELS. High-speed steels and steels for the manufacture of permanent magnets contain comparatively large amounts of tungsten. The determination of silicon in this class of material is always made in conjunction with that of tungsten, for which see p. 136. PHOSPHORUS (P=31-0). Numerous investigators in the fields of analytical chemistry have busied themselves with the determination of phosphorus, and the published papers on the subject outnumber those relating to the determination of any other element, with the possible exception of vanadium. Fortunately the processes in use at the present time are comparatively few, and the conditions making for success in their application to the analysis of the raw materials and finished products of metallurgical and other operations, have been precisely determined. Nothing more than a brief reference to a few of the others is therefore necessary, nor ...

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This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1920. Not illustrated. Excerpt: ... until the beaker is quite cold, results frequently in a cracked vessel and a wrecked assay.] Next add from 20 to 30 c.c. hydrochloric...

Format:PaperbackDimensions:116 pages, 9.69 × 7.44 × 0.24 inPublished:January 10, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217070892

ISBN - 13:9780217070898

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