A Handbook of Colloid-Chemistry Tr. from the 3D German Ed

A Handbook of Colloid-Chemistry Tr. from the 3D German Ed

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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. 1915 edition. Excerpt: ...must be considered in a colloid (or in any dispersoid): the compressibility of the dispersion means, the compressibility of the disperse phase, the compressibility of the system as a whole. The first and third of these can be measured by physical methods, the value of the second may be calculated from the other two. Of greatest immediate interest is a comparison of the compressibility of a colloid solution with that of the pure dispersion means. One anticipates that the compressibility of the colloid solution will be smaller than that of the pure dispersion means, and that it will decrease as the concentration of the colloid increases. That these relations will be more complicated in emulsoids than in suspensoids is also to be expected. The curve expressing the relation between ' concentration and compression of emulsoids will probably not be a straight line as in suspensoids. The fact that it is not a straight line in molecular-and ionic-disperse systems already indicates this; for as the investigations of Rontgen and Schneider,2 H. Gilbaut3 and others have shown, this function approximates a hyperbolic curve diverging more and more from a straight line with increasing concentration (see Fig. 20). Fig. 17 shows the relation between compressibility and concentration of NaCl according to the experiments of H. Gilbaut. A similar behavior is to be expected for the emulsoids because of their close relation to the molecular dispersoids. One would also expect that electrically charged or ionized colloids would decrease the compressibility of the pure dispersion means more than such not so charged, for according to Guinchant" the compressibility of water is less reduced through addition of a non-electrolyte than of an electrolyte. 1...show more

Product details

  • Paperback | 92 pages
  • 189 x 246 x 5mm | 181g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236763564
  • 9781236763563