Universal Technological Dictionary; Or, Familiar Explanation of the Terms Used in All Arts and Sciences

Universal Technological Dictionary; Or, Familiar Explanation of the Terms Used in All Arts and Sciences : Containing Definitions Drawn from the Original Writers, and Illustrated by Plates, Diagrams, Cuts, &C Volume 1

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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. 1823 edition. Excerpt: ...products, they are then said to be chemically combined, and the act by which this union takes place is termed combination, in distinction from mechanical mirture, which is the mere mixture of the bodies. By these two processes all bodies are chemically investigated in two forms, namely, by analysis and synthesis. Analyric is the separation of bodies by a series of decompositions and combinations, so as to come at the knowledge of their constituent parts. Synthesis is a similar process, for the purpose of forming new compounds. These two forms of investigation frequently accompany each other, and may be successively employed on the same substances, to prove the accuracy of the investigation: thus Epsom salt may be analyzed, and shown to consist of sulphuric acid and magnesia; or it may be synthetically compounded, by combining magnesia with sulphuric acid, when Epsom salt, in the form of crystals, will be the result. Chemical investigations are mostly carried on by reducing bodies to a fluid state, which may be elfecte either by solution or by fusion. Solution. When a solid disappears in a liquid, or when ll solid or a liquid is taken up b an aeriforrn body, the act and the result are both calilsd a solution: thus, when common salt is melted in Water, its solution is said to have taken place, and the li uid thus obtained is called culiar pro ei-ties disappear, they are then said to be neutralizezi): thus when muriatic acid ceases to act on I hem that fluid, and made to gravitate to the bottom of the vessel, they are said to be recipitated; the matter which is thuzsetparigted is calledp the precipitate, and the substance w ic t us separates another is called the recipitant: thus, if into a solution of nitrate of silver he dropped a...show more

Product details

  • Paperback | 428 pages
  • 189 x 246 x 22mm | 757g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236886275
  • 9781236886279