Lectures On the History of the Development of Chemistry Since the Time of Lavois
Lectures On the History of the Development of Chemistry Since the Time of Lavois
Albert Ladenburg
The book Lectures On the History of the Development of Chemistry Since the Time of Lavois was written by author Albert Ladenburg Here you can read free online of Lectures On the History of the Development of Chemistry Since the Time of Lavois book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Lectures On the History of the Development of Chemistry Since the Time of Lavois a good or bad book?
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81 Annalen. 117, 120; Supplementband I, 129, 338; Supplementband 2, 85 ; 130, i. 8 - Ibid. 124, 265 ; 126, 195 ; 129, 167, 270 HISTORY OF CHEMISTRY. [LECTURE XIII. with which the substances can combine with hydrogen, chlorine, hypochlorous acid, etc. The capacity for entering into direct additions thus became a characteristic of the group ; but it cannot be said to be really distinctive, since some substances which are classed as saturated also possess this capacity. As examples of the latter s...ubstances the aldehydes and ketones in particular may be instanced, and these are substances which contain oxygen wholly united to carbon. In explanation of the facts, the assumption is made regarding these compounds that, by addition, the group (C = O)" passes into (C O)"" ; that is to say, a diatomic radical becomes a tetratomic one. Later experiments of a very detailed char- acter on the unsaturated acids, by Fittig, have led to the confirmation of the view mentioned above ; 83 that is, they have shown that the facts are best accounted for when blanks, or bivalent carbon atoms, are assumed in some compounds at least.
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