Tests for Coal-tar Colours in Aniline Colours ...
Author : George Zerr
Publisher :
Page : 230 pages
File Size : 20,56 MB
Release : 1910
Category :
ISBN :
Author : George Zerr
Publisher :
Page : 230 pages
File Size : 20,56 MB
Release : 1910
Category :
ISBN :
Author : Georg Zerr
Publisher :
Page : 252 pages
File Size : 20,17 MB
Release : 1910
Category : Coal-tar colors
ISBN :
Author : George ZERR
Publisher :
Page : pages
File Size : 32,22 MB
Release : 1910
Category :
ISBN :
Author : Rudolf Benedikt
Publisher :
Page : 292 pages
File Size : 26,57 MB
Release : 1886
Category : Coal-tar
ISBN :
Author : George Zerr
Publisher :
Page : 242 pages
File Size : 41,78 MB
Release : 2008-06
Category :
ISBN : 9781436607421
This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Author :
Publisher :
Page : 128 pages
File Size : 26,97 MB
Release : 1892
Category : Coal-tar colors
ISBN :
Author : William Henry Perkin (jr.)
Publisher :
Page : 19 pages
File Size : 34,29 MB
Release : 1869
Category : Aniline
ISBN :
Author : Irving Wetherbee Fay
Publisher :
Page : 518 pages
File Size : 27,2 MB
Release : 1911
Category : Coal-tar colors
ISBN :
Author : W. H. Perkin
Publisher : Forgotten Books
Page : 26 pages
File Size : 11,26 MB
Release : 2016-09-15
Category : Science
ISBN : 9781333598389
Excerpt from On the Aniline or Coal Tar Colours The process of preparing nitrobenzol with a mixture of sulphuric acid and nitrate of sodium in place of nitric acid, may be carried on very well in this apparatus, pro vided sufficient sulphuric acid be employed to produce an acid sulphate of sodium, as this will be found quit uid at the close of the operation, and can be freely run out at the small outlet. A mixture of strong nitric acid and sulphuric acid is now usually employed for the con version of benzol into nitrobenzol. In working by this latter method the entire charge of benzol is first introduced though the large opening in the lid; this is then closed and the stirrer set moving; the nitric and sulphuric acids are then cautiously run in through the small pipes, care being taken not to add too much nitric acid, until the red fumes begin to appear. After all the charge of acids has been added, and the reaction has perfectly ceased, the product is drawn off. At first a mixture of sulphuric and nitric acids runs out, and then the nitrobenzol; this is collected separately and purified, first by agitation with water, and then rendered perfectly neutral by means of a dilute solution. Of soda. Should it contain any unconverted benzol this may be distilled off by means of steam. On the Continent manufacturers do not appear to have succeeded well in manufacturing nitrobenzol; when it first became a commercial article, their difficulty appears to have arisen from the fact that they experimented in earthenware vessels, which are both dangerous and unsuitable, and it was not until information was obtained from England, I believe, that they were able to produce this body at a moderate price. 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."
Author : A. Clarke
Publisher :
Page : 190 pages
File Size : 49,37 MB
Release : 1922
Category : Coal-tar colors
ISBN :