Author : Frank Austin Gooch
Publisher :
ISBN 13 : 9781330663288
Total Pages : 554 pages
Book Rating : 4.6/5 (632 download)
Book Synopsis Methods in Chemical Analysis, Originated Or Developed in the Kent Chemical Laboratory of Yale University (Classic Reprint) by : Frank Austin Gooch
Download or read book Methods in Chemical Analysis, Originated Or Developed in the Kent Chemical Laboratory of Yale University (Classic Reprint) written by Frank Austin Gooch and published by . This book was released on 2015-07-03 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Methods in Chemical Analysis, Originated or Developed in the Kent Chemical Laboratory of Yale University The tubes A and B are so selected that very little of the product evolved can escape between them, and, in case they fit very loosely, a ring of paraffin melted into the mouth of A, about B, by means of a hot wire, seals the joint securely. A very convenient way to attach the paraffin is to melt it between A and another tube, which fits A, as does B, and may be removed by a turning motion, leaving the ring into which B will fit. Very little heating is then required to make a tight joint. If care be used in taking apart A and B, at the close of an experiment, such a ring of paraffin remains in place and may be used many times without replacement, being remelted by a touch of the hot wire before every new experiment. In making a determination, the substance under examination is weighed and placed in the bottom of A. The reagent to be employed, 10 cm.3 to 15 cm.3, is drawn into C, and held there in the manner described. The test tube A is slipped over B, and the joint is sealed with paraffin, as has been shown. The apparatus is wiped, placed on the balance and weighed. Upon removing the cap from the small tube in C, the reagent runs from C into A. The volatile product, forced upward through the drying column of calcium chloride, escapes through the annular space between B and C. When action ceases, a current of dry air is forced through C, to remove all the volatile product, the cap is replaced, and the apparatus is weighed. The loss of weight represents the volatile product. 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.
