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Science, Vol. 15: A Weekly Journal Devoted to the Advancement of Science; January-June, 1902 (Classic Reprint) - Tapa blanda

Newcomb, S.

 
9781334958168: Science, Vol. 15: A Weekly Journal Devoted to the Advancement of Science; January-June, 1902 (Classic Reprint)

Sinopsis

Excerpt from Science, Vol. 15: A Weekly Journal Devoted to the Advancement of Science; January-June, 1902

Chemical, Society, American, J. L. H, 126, Nich ol's Research Medal, 875; Northeastern Sec tion, H. Fay, 72, 308, 509, 628; North Caro lina Section, C. B. Williams, 105; Society of Washington, L. S. Munson, 145, 666.

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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.

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Reseña del editor

Excerpt from Science, Vol. 15: A Weekly Journal Devoted to the Advancement of Science; January-June, 1902

Chemical, Society, American, J. L. H, 126, Nich ol's Research Medal, 875; Northeastern Sec tion, H. Fay, 72, 308, 509, 628; North Caro lina Section, C. B. Williams, 105; Society of Washington, L. S. Munson, 145, 666.

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.

Reseña del editor

Excerpt from Science, Vol. 15: A Weekly Journal Devoted to the Advancement of Science; January-June, 1902

From 1858 to 1886 may be called the 'rosanilin period' of the color industry, since it was chiefly marked by the develop. Ment of the colors of this group. A few individual members of other groups had been discovered, but had not attained im portance. This is especially true of the 'azo' dyes, which have attained such im portance that the last fifteen years may justly be called the 'azo period.' The number of individual compounds belonging to this class which have either been pre pared or are at present preparable, runs into many millions, and far exceeds the members of all other groups of coloring matters put together. In commercial im. Portance, also, they occupy a position at present far in advance of any other group; the employment of some of them, as the azo blacks, amounting to many thousands of tons annually. A great stimulus to the investigation of the azo compounds was given by the discovery by Boettger in 1884 of the first color possessing a direct afiinity for cotton (congo red), which was followed in a few years by a rapidly increasing series of colors of all shades having similar dyeing properties. The great simplification of cotton dyeing, brought about by the introduction of the new group of azo colors - 'benzo' or 'diamin' colors as they are called - led to a rapid increase of their number. Simultaneously therewith pro ceeded the discovery and investigation of the various isomeric derivatives of naphtha lene, required as raw products for the prep aration of these colors.

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.

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