Economic Geology; Or, Geology In Its Relations To The Arts And Manufactures

Paperback | July 9, 2012

byDavid Page

not yet rated|write a review
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. 1874 edition. Excerpt: ...1035-45 Peat,56.665-918-332-41.6 Lignite,.56.703-713.27I.O1.13 Coal,.70.922.61.8O.23-'5 Anthracite,74-941-40-3trace1-7 Graphite,90.98 1-7 According to M. Fremy the following are the degrees of alteration of woody tissue: 1. Turf and Peat.--Characterised by the presence of ulmic acid, and also by the woody fibres or the cellules of the medullary rays, which may be purified or extracted in notable quantities by means of nitric acid or hy-pochlorites, in which they are insoluble. 2. Fossil Wood or Woody Lignite.--This, like the preceding, is partially soluble in alkalies, but its alteration is more advanced, for it is nearly wholly dissolved by nitric acid and hypochlorites. 3. Compact or Perfect Lignite.--This substance is characterised by its complete solubility in hypochlorites and in nitric acid. Alkaline solutions do not in general act on perfect lignites. Reagents in this variety show a passage of the organic matter into coal. 4. Coal.--Insoluble in alkaline solutions and hypochlorites. 5. Anthracite.--An approximation to graphite; resists the reagents which act on the above-mentioned combustibles, and is only acted on by nitric acid with extreme slowness. Coke. Coke, or carbonised coal, which is now largely used as a fuel for metallurgical purposes, may be regarded as an artificial anthracite. It is extensively prepared in the north of England from the smaller dross of the coking-coal of that district, and when well burnt from carefully cleaned material, consists of from 85 to 92 carbon, 3 to 5 ash, and 5 to 10 hydroscopic moisture. The amount of coke obtained from different coals varies very widely, some yielding upwards of 80 per cent, and others less than 50; but both amount and quality depend greatly upon the mode of treatment. The main...

Pricing and Purchase Info

$31.50

Out of stock online

From the Publisher

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. 1874 edition. Excerpt: ...1035-45 Peat,56.665-918-332-41.6 Lignite,.56.703-713.27I.O1.13 Coal,.70.922.61.8O.23-'5 Anthracite,74-941-40-3trace1-7 ...

Format:PaperbackDimensions:134 pages, 9.69 × 7.44 × 0.29 inPublished:July 9, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217204171

ISBN - 13:9780217204170

Look for similar items by category:

Customer Reviews of Economic Geology; Or, Geology In Its Relations To The Arts And Manufactures

Reviews