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Chemical Technology Volume 1, PT. 3; Or, Chemistry in Its Applications to the Arts and Manufactures (Paperback) Loot Price: R633
Discovery Miles 6 330
Chemical Technology Volume 1, PT. 3; Or, Chemistry in Its Applications to the Arts and Manufactures (Paperback): Edmund Ronalds
Chemical Technology Volume 1, PT. 3; Or, Chemistry in Its Applications to the Arts and Manufactures (Paperback): Edmund Ronalds

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Chemical Technology Volume 1, PT. 3; Or, Chemistry in Its Applications to the Arts and Manufactures (Paperback)

Edmund Ronalds

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Loot Price R633 Discovery Miles 6 330 | Repayment Terms: R59 pm x 12*

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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. 1863 Excerpt: ...T Sulphate of manganese, g 7&6 Hydrochloric acid, ClH...... 36'5 = ' NaO.SO'.................. l Sulphuric acid, HO.SO..".... 49'0 Water, 2HO.................. 18'0 129'l K l29'l And, lastly, when hydrochloric is the only acid employed--Peroxide of manganese, 43,6 Chlorine, Cl.................. 3-5'5 MnO'..................... Chloride of manganese, g $.31 Hydrochloric acid, 2HC1 73-0 _ ouvni..................... ' " ' Water, 2H0.................. is-o 1166 k 1l6'6 The actual proportions differ, however, from the above theoretical quantities, as the oxides of manganese of commerce are never pure, containing lime, baryta, and oxide of iron, and only from 60 to 75 per cent. of peroxide of manganese, all of which combine with the acid and necessitate the use of a. proportionally larger weight. _ As regards the first plan, the additional equivalent of sulphuric acid is required, from the circumstance long since pointed out by Mitscherlich, that when sulphuric acid acts on common salt, it forms bisulphate of soda, which is only afterwards decomposed by a high heat: thus 2NaCl. ie1dNaO.HO.2SO3. 2(1-1o.so3). Y NaCl + H01. And hence the proportions previously given. (See page 339.) The materials are thrown into the still, the fire lighted and urged, until the temperature of the interior rises to 180 F., and the agitator occasionally turned round to raise the manganese and bring all the materials into contact. When hydrochloric acid is employed, the manganese in coarse powder is thrown on the stone shelf of the still, and the acid run in until it reaches the guage. Steam is then admitted into the outer case and allowed to act for 36 to 48 hours, during which time the temperature of the materials rises to 180 F. Mr. Pattin...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: May 2012
First published: May 2012
Authors: Edmund Ronalds
Dimensions: 246 x 189 x 12mm (L x W x T)
Format: Paperback - Trade
Pages: 228
ISBN-13: 978-1-235-94857-2
Barcode: 9781235948572
Categories: Books
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LSN: 1-235-94857-9

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