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ABSTRACT IN a preliminary notice, which the Royal Society has done me the honour of publishing in the _Proceedings_, I gave a very short sketch of the work I have done which led me to a
reaction whereby hard crystalline carbon has been produced. I have now the honour of laying a detailed account of the methods and results before the Society. As far back as September, 1879,
I was searching for a solvent for the alkali metals, and tried experiments with many liquids and gases, but invariably found that when the solvent reached the permanently gaseous state
chemical action ensued. This was the case even with hydrocarbons, the metal combining with the hydrogen and setting free the carbon. Paraffin spirit, boiling at 75°, was first used in
experimenting, and the spirit contained a considerable amount of defines; but even these unsaturated hydrocarbons seemed to be split up in like manner. The experiments were conducted in
thick tubes from 1 to 1.5 millims. internal, and 10 to 15 external diameter, and made of hard glass. Access through your institution Buy or subscribe This is a preview of subscription
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ARTICLE _Artificial Diamonds_ 1 . _Nature_ 22, 255–257 (1880). https://doi.org/10.1038/022255a0 Download citation * Issue Date: 15 July 1880 * DOI: https://doi.org/10.1038/022255a0 SHARE
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