. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. A, Battery Trough. B, Zinc Plates. C, Copper Plates. D, Connecting Wires. Intensity is necessary when, from the nature of the solutions, or from any other cause, there is a resistance to be overcome; the electricity requiring intensity or power to force its way through , but the amount of metal de- posited, depends wholly upon the quantity of the battery, and not upon the intensity. Intensity is produced by arranging two or more pairs of plates, by con- necting the zinc of th
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. A, Battery Trough. B, Zinc Plates. C, Copper Plates. D, Connecting Wires. Intensity is necessary when, from the nature of the solutions, or from any other cause, there is a resistance to be overcome; the electricity requiring intensity or power to force its way through , but the amount of metal de- posited, depends wholly upon the quantity of the battery, and not upon the intensity. Intensity is produced by arranging two or more pairs of plates, by con- necting the zinc of the one pair with the eopper of the next pair, and so on to any number of pairs—any numtjer thus connected, forming a battery equal in qnanlity to one pair of plates other substances, forming compounds, capable of being dissolved, and held in solution by acids and certain alkalies; thus, tor example:—When pure silver is put into pure nitric acid and heated, the metal is rapidly dissolved, forming the nitrate of the oxide of silver, or, as commonly designated, the nitrate of silver, and this may be held in s ilution in water. In forming a metallic salt for the purpose of electro-deposition, one general rule holds good in all cases, and may be considered a law (and if this law is attended to, no difficulty whatever can in electro-depositing); and this is, that the metal dissolved in acid or other solvent must have a greater affinity for such solvent, ihan the metallic article to be coated with the metal thus held in solution—for this simple reason, that if the article to be coated hA% a greater affinity for the solvent than the metal held in solution, a chemical substitutionjpreceding the galvanic action) takes place ; the acid in preference combining with the metal, for which it has the greatest affinity, forming an oxide upon its sur- face, which oxide intervenes between the article and the metal depoiited upon it. Such failures therefore as have taken place i
Size: 2500px × 1000px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
