ISBN: 9780217642606

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 … Meer...

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. 1888 edition. Excerpt: ...a small quantity of sulphate of copper, and a large quantity of sulphate of zinc, in a large quantity of water, and pass a strong current through the solution, copper, zinc, and hydrogen will be set free at the cathode. 3rd. If we slightly moisten a lump of caustic potash with pure water, and pass a weak electric current through it by platinum electrodes, hydrogen alone will be set free at the cathode, but if a very powerful current is employed, potassium also will be deposited. In each of these cases we find that when the current is weak the least positive of the positive substances is alone deposited; but if the power is sufficiently increased, and there is only a small proportion of the less positive substance present, the more positive substances, even though they are much more positive, will also be liberated. Thus the weaker affinities are overcome first, and to the greatest extent; the current of electricity exercising its influence first, and in the greatest proportions, upon the salt of the least positive metals. 96. Depositing Liquids.--For the benefit of the practical depositor--to whom a general knowledge of all solutions from which ordinary metals may be deposited, with their respective advantages and disadvantages, is of considerable importance--we will give a description of those solutions in regular order, making such remarks in our progress as will be likely to assist him in the selection of those most suitable for his particular purposes. 97. Antimony Solutions.--The most common salts of antimony are the sulphide, terchloride, and potassio-tartrate. The hydrochlorate of terchloride of antimony, i.e., the ordinary chloride of antimony, as prepared for pharmaceutical purposes, is formed by chemical means thus:--Take one... G. Gore, Books, Fiction and Literature, Fiction, Theory And Practice Of Electro-deposition Including Every Known Mode Of Depositing Metals, Preparing Metals For Immersion, Taking Books>Fiction and Literature>Fiction This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Title: Theory and Practice of Electro-Deposition Including Every Known Mode of Depositing Metals, Preparing Metals for Immersion, Taking Moulds and Rendering Them Conducting; Original Published by: Charles & Co. in 1888 in 158 pages; Subjects: Electrometallurgy; Electroplating; Science / Chemistry / Physical & Theoretical; Technology & Engineering / Material Science; Technology & Engineering / Metallurgy; Technology & Engineering / Technical & Manufacturing Industries & Trades;<

2009, ISBN: 0217642608, Lieferbar binnen 4-6 Wochen

Internationaler Buchtitel. In englischer Sprache. Verlag: Cambridge Scholars Publishing, 146 Seiten, L=152mm, B=229mm, H=8mm, Gew.=222gr, [GR: 21110 - TB/Belletristik/Romane/Erzählungen],… Meer...

Internationaler Buchtitel. In englischer Sprache. Verlag: Cambridge Scholars Publishing, 146 Seiten, L=152mm, B=229mm, H=8mm, Gew.=222gr, [GR: 21110 - TB/Belletristik/Romane/Erzählungen], [SW: - Literature - Classics / Criticism], Kartoniert/Broschiert, Klappentext: Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: rapidly than if we used zinc and copper in place of zinc and platinum, and much more rapidly than if we used iron and copper; because the difference of affinity between zinc, platinum, or platinized silver for dilute sulphuric acid, is more than zinc and copper for that liquid, and much more than between iron and copper. 3rd. With Two Metals and Two Liquids?If we immerse a piece of zinc in dilute sulphuric acid, and a piece of copper in a solution of sulphate of copper, the two liquids touching each other, and the two metals connected with two pieces of copper in a separate solution of sulphate of copper, the amount of metal dissolved and deposited in a given time in the separate liquid will be much smaller than if we used zinc in dilute sulphuric acid, and platinum in strong nitric acid; because the difference of affinity between the two metals in the two liquids, in the first instance, is less than in the second. 25. Acid and Basic Affinities Necessary.?Chemical affinity differs not only in degree but also in kind; basic substances, such as metals, alkalies, alkaloids, and most metallic oxides, have a great tendency to combine with acids; whilst acid substances, such as the metalloids (oxygen, sulphur, chlorine, phosphorus, fluorine, fco.), mineral and vegetable acids, and some metallic oxides, tend to combine with bases. In a similar manner, the difference of affinity between the dissolving and receiving surfaces in electro- deposition is not wholly one of degree, but is also one of kind; the dissolving metal in a separate depositing liquid (13) acquires, by means of its connexion with some source of depositing power, an affinity for the acid elements of the liquid; whilst the receiving metal acquires, by the same means, an affinity of an opposite kind; for instance (Fi...<

ISBN: 9780217642606

Theory and practice of electro-deposition including every known mode of depositing metals preparing metals for immersion taking moulds and rendering them conducting Author :G. Gore 978021… Meer...

Theory and practice of electro-deposition including every known mode of depositing metals preparing metals for immersion taking moulds and rendering them conducting Author :G. Gore 9780217642606 0217642608<