Memoir of John Dalton; And History of the Atomic Theory Up to His Time Volume 18

Memoir of John Dalton; And History of the Atomic Theory Up to His Time Volume 18

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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. 1856 edition. Excerpt: ...the name of disposing a.fl'im't.1/. "4th. Two or more compounds being placed in circumstances, suitable for bringing into play the respective aflinities of their component parts; either there is a change and new products formed without our being able to determine which is the most powerful aflinity under which they act, or the first composition remains, contrary to the order indicated by the superior aflinity of the principle of one of the component parts to the aflinity of the other. In these two cases we say that they are not the relations of aflinity of one body to another, but afiinities of concourse, otherwise called double afinities; in a word, the sum of all the united aflinities which are needed to explain these phenomena. " Two bodies being put in contact, the compound which results is supercompounded, or united with an excess of one of the principles. This tendency to supercomposition, is sometimes so strong, that when the least affinity of a third body interferes with it, the proportions of the first compound are changed, and the neutral state destroyed. This tendency may cause the production of crystals, with excess of base, in an acid liquor. To distinguish this force, we shall call it the aflinity of a compound for an excess of one of its constituents, or for shortness, afinity qfezvcess, which will be enough to recall the idea when it has been well grasped. However paradoxical some of these propositions may appear, I have no fear of their being called in question after the proofs I have given; and if they are well founded, it will readily be granted that they ought to form one of the most important elements in the calculation of aflinities." Here now we have what Morveau has given, as the more

Product details

  • Paperback | 92 pages
  • 189 x 246 x 5mm | 181g
  • United States
  • English
  • black & white illustrations
  • 1236744500
  • 9781236744500