Royal Dublin Society
Published: 2017-11-27
Total Pages: 546
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Excerpt from The Journal of the Royal Dublin Society, Vol. 6 The fact that, under certain circumstances, and more particularly when heated with any substance capable of afl'ording oxygen to it, aniline gave rise to colour, was long known; but no one seems to have attempted to fix any of these colours. It was Runge who first noticed the action of chloride of lime upon aniline; and as this was perhaps the earliest experiment in which aniline was seen to give colour, we may repeat it. Here is a solution of a salt of aniline, and you will see that when we add to it a weak solution of chloride of lime, a blue coloration is at once produced. It is important not to add too much of the chloride, for the very agent which produces the colour is most active in destroy ing it. But though a patent has, indeed, been taken out for making a colouring matter in this way, the process has, I believe, been aban doned, as it is not very practicable. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.