Papers on etherification and on the constitution of salts / by Alexander W. Williamson ... (1850-1856).

  • Williamson, Alexander W. (Alexander William), 1824-1904.
Date:
1902
Catalogue details

Licence: In copyright

Credit: Papers on etherification and on the constitution of salts / by Alexander W. Williamson ... (1850-1856). Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    and bases being, truly, acid salts and basic salts, are perfectly conformable to the same principle; and that, amongst other things, the difference between monobasic and bibasic acids, &c. admits of a simple and easy explanation by it. The lead- ing propositions in those papers have been adopted by several eminent chemists in this country and in France ; and M. Gerhardt speedily enriched science with a series of brilliant and striking illustrations of their truth. As regards the constitution of bibasic acids, M. Gerhardt's results were, however, at variance with that theory ; and he was led to represent them by formulae equally inconsistent with his own pre- vious views on the subject. I believe that this discrepancy is satisfactorily removed by the facts I have the honour of siibmitting to the consideration of the Society. An atom of nitric acid, being eminently monobasic, is, as we have already shown, represented in the monobasic type by the formula ^^^^O, in which peroxide of nitrogen (NOo) replaces one atom of hydrogen. In like manner, hydrate of potash ( ) obtained by replacing one atom of hydro- gen in the type by its equivalent of potassium ; and nitrate of potash by a simultaneous sub- stitution of one atom of hydrogen by peroxide of nitrogen, the other by potassium. Sulphuric acid is H formed from two atoms of water tt ; one of O hydrogen from each is removed, and the two