The Chemical News And Journal Of Physical Science 1889

Author : William Crookes
Publisher : Forgotten Books
ISBN 13 : 9780331641622
Total Pages : 676 pages
Book Rating : 4.6/5 (416 download)

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Download or read book The Chemical News and Journal of Physical Science, 1889 written by William Crookes and published by Forgotten Books. This book was released on 2017-11-21 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Chemical News and Journal of Physical Science, 1889: With Which Is Incorporated the "Chemical Gazette"; A Journal of Practical Chemistry in All Its Applications to Pharmacy, Arts, and Manufactures; Volumes 59 and 60 Ultramarine by the Moist Way. - Dr. F. Knapp. The author has examined the preparation of ultramarine with silica alone, with alumina alone, or blue of the ultra marine type prepared with sodium salts or with calcium phosphate, the sodium sulphide, and the black precipitate extracted from it, and black sulphur, which he considers identical with the black sulphur of Magnus. In preparing ultramarine by the dry way sodium carbonate is added to the clay and the sulphur. Potassium carbonate cannot be used either in the dry or the wet process. There is no analogy between the two alkalies as regards the special properties of their sulphides. The sulphide obtained by fusing potassium carbonate with an excess of 11111e is devoid of that green shade observed in the corresponding sodium compound, but is of a pure reddish brown. If dis solved in water it deposits no black matter, and the solu tion is never green, but reddish brown. 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.