On new compounds of carbon and hydrogen, and on certain other products obtained during the decomposition of oil by heat / [Michael Faraday].

  • Faraday, Michael, 1791-1867
Date:
1825
Catalogue details

Licence: Public Domain Mark

Credit: On new compounds of carbon and hydrogen, and on certain other products obtained during the decomposition of oil by heat / [Michael Faraday]. Source: Wellcome Collection.

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    has combined with the hydrogen to form water, and which with the 0.34 of vapour nearly make the diminution of 0.9. It will be seen at once that the oxygen required for the carbon is four times that for the hydrogen; and that the whole statement is but little different from the following theoretical one, deduced partly from the former experiments. 1 volume of vapour requires 7.5 volumes of oxygen for its combustion; 6 of the latter combine with carbon to form 6 of carbonic acid, and the 1.5 remaining combine with hydrogen to form water. The hydrogen present therefore in this compound is equivalent to 3 volumes, though con- densed into one volume in union with the carbon ; and of the latter elements there are present six proportionals, or 36 by weight. A volume therefore of the substance in vapour contains Carbon - 6 x 6 = 36 Hydrogen - 1 x 3 = 3 39 and its weight or specific gravity will be 39, hydrogen being 1. Other experiments of the same kind gave results according with these. Among the liquid products obtained from the original fluid was one which, procured as before mentioned, by sub- mitting to o° the portion distilling over at 180° or 190°, corresponded with the substance already described, as to boiling points, but differed from it in remaining fluid at low temperatures; and I was desirous of comparing the two together. I had no means of separating this body from the