Physical Review Volume 17

Physical Review Volume 17

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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. 1903 edition. Excerpt: ...points correspond with the maxima of conductivity. Hagenbach/' in 1894, did the most recent and the best work in this line. He gives curves for a number of sulphates and chlorides with platinum and other electrodes which show considerable regularity. He states, however, his inability to get any satisfactory results with electrolytes containing nickel or nitrates. Bouty7 tried nickel sulphate with nickel electrodes and found that an external current flowed from the cold electrode to the warm. Hagenbach repeated this experiment and found that no definite values were obtainable, the action being very erratic, some 1 Walker, Pogg. Ann., 4, p. 327, 1825. 2 Faraday, Researches, Soc. 17, p. 1932, 1840. times positive and sometimes negative. With nitrates he could get nothing. Silver and cobalt salts are probably negative, but very inconstant. In view of these facts it was thought advisable to investigate the nitrates, particularly nickel nitrate, and see if any more definite results could be obtained. Arrangement Of Apparatus. Fig. 1 shows this quite clearly. The solution was contained in the small beakers (Z?) and about 5 cm. deep and 3 cm. in diameter connected by a tube (S) of 15 mm. bore. The electrodes (A) were of platinum wire fastened to the ends of a light strip of wood (70) and continued out to (_/). Here they were connected to copper wires which went to the potentiometer at J. The junctions were wrapped in thin silk and then wrapped close together in order that both junctions might be always at the same temperature. The F1g. 1. light stick (70) was fastened to one of the bars of an electrically driven tuning fork (F) which made about 256 V. S. The beaker (B) at the cool end was hung in a wood box (IV) and packed around with raw...
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Product details

  • Paperback | 138 pages
  • 189 x 246 x 8mm | 259g
  • United States
  • English
  • black & white illustrations
  • 1236881443
  • 9781236881441