Studies; Reprints Volume 43

Studies; Reprints Volume 43

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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. 1922 edition. Excerpt: ...This equation applies well to the adsorption of liquids by solids, and Arrhenius" has pointed out that it could be TABLE X. Serum I020 (Dog under 1 Yr. of A ge). K = 0.0065 Time 0 2m l 6m. 12m 20m 25:11 Surface tension observed, dynes............ 59.6 57.5 56.9 56.1 55.5 55.5 " " calculated, dynes........... 57.7 56.9 56.0 55.3 55.3 In this case, the cocflicient is much smaller. Scrum 1022 (Old Dog). K =0.0I Time 0 2m 6m 16m 25m Surface tensionobserved, d_-nex.................. 61.1 59.0 57.8 56.0 55.6 " " calculated, dynes................. 59.0 57.75 55.8 remarkable identity despite the entirely different conditions (Textfigs. 9 and 10). A few formulas have been given for expressing the phenomenon of adsorption in function of the quantity adsorbed and of the concentration. It is clear that they could not be used in our case. Among these we may mention the formula quoted by Duclaux8 and that of Freundlich, '-' inaccurate at higher concentrations as shown by Schmidt," who gives a rather complicated exponential formula" 7Lewis, W. C. McC., Proc. Physic. Soc., 1909, xxi, 150; Phil. Mag., 1909, xvii, 466; Z. Chem. 14. Indust. Kolloide, 1909, v, 91; also cited by Willows, R. S., and Hatschck, 15., Surface tension and surface energy, and their influence on chemical phenomena, Philadelphia, 1915, 41. 3 Duclaux, J., Les colloides, Paris, 1920, 148. '' Freundlich, H., Kapillarchemie: Eine Darstellung der Chemie der Kolloide und verwandter Gebiete, Lcipsic, 1909, 146. l" Schmidt, G. C., Z. physik. Chem., 1910, lxxiv, 699. " Schmidt, G. C., Z. physik. Chem., 1911, lxxvii, 641. TEXT-FIG. 9. Action on surface tension of adsorption of sodium glycoch018lcents by paraffin oishow more

Product details

  • Paperback | 170 pages
  • 189 x 246 x 9mm | 313g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236836065
  • 9781236836069