Chemistry of the Organic Dyestuffs (Classic Reprint)

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Excerpt from Chemistry of the Organic Dyestuffs Coloured carbon compounds come under the latter classification. The number of organic compounds containing, besides carbon, hydrogen, oxygen, and nitrogen is very large, and by far the greater number of them are colourless. On the other hand, some compounds of carbon with these elements possess colour which far surpasses that Of any other element, both as regards intensity and character. The coloured carbon compounds Often differ little, or not at all, from the colourless ones in their percentage composition, and it is this fact which renders it certain that it is the structure of the compounds which causes in one case colour, in the other none. In the life-processes of plants and animals both colourless and coloured carbon compounds are formed, and the latter have been employed since the earliest periods as dye-materials. 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.