Proceedings of the Chemical Society Volume 1-5

Proceedings of the Chemical Society Volume 1-5

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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. 1885 edition. Excerpt: this respect from aldehyde and also from water. The efiect of mixing aldehyde and absolute alcohol in molecular proportions is also very interesting. If the temperature of the liquids be not too low, the temperature rapidly rises a.nd the mixture boils; if however the temperature be low, say 8 or 10, the temperature immediately falls seven or more degrees: the rise then sets in, and before long the mixture reaches its boiling point. In the first instance the fall is due to what may be called molecular arrangement setting in between the two fluids, which is a physical change, and occurs before chemical action has had time to take place to any appreciable extent; then chemical action takes place more and more rapidly, and in consequence the temperature rises. On mixing pure dry ether with aldehyde a fall of temperature occurs; subsequently the temperature rises gradually, but only to that of the surrounding air. 53. " Note on a New Class of Voltaic Combinations in which Oxidisable Metals are replaced by Alterable Solutions." By C. R. Alder Wright and C. Thompson. It appeared to the authors probable that just as a liquid capable of parting with oxygen, chlorine, &c., can be used in conjunction with an electrode of unchangeable material at one side of a voltaic cell (as in Grove's nitric acid battery and analogous combinations), or may be replaced by a solid conducting electrode, itself capable of losing oxygen (e.g., a plate of strongly compressed peroxide of lead), so conversely might a conducting plate of oxidisable material (e.g., zinc) at the other side be replaced by an unchangeable electrode in conjunction with a liquid capable of taking up oxygen, chlorine, &c., without producing any fundamental change more

Product details

  • Paperback | 270 pages
  • 189 x 246 x 14mm | 485g
  • United States
  • English
  • black & white illustrations
  • 1236744551
  • 9781236744555