The Hydrolysis of Sodium Oxalate and Its Influence Upon the Test for Neutrality (Classic Reprint)

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Excerpt from The Hydrolysis of Sodium Oxalate and Its Influence Upon the Test for NeutralitySorensen's method for testing the neutrality of the sodium oxalate is as follows: Introduce into a conical Jena ¿ask about 2 50 cc of water and 10 drops of phenolphthalein solution g phenolphthalein dissolved in 50 cc alcohol and 50 cc of water), and evaporate to 180 cc while passing in a current of pure air, free from carbon dioxide. Allow to cool to the ordinary temperature and add 5 g of sodium oxalate. Upon shaking carefully, while maintaining the current of air, the oxalate slowly dissolves. If the solution is red, not more than 4 drops of decinormal acid should be required to render it colorless, while if the solution is colorless, it should acquire a distinct red color upon the addition of not more than 2 drops of decinormal sodium hydroxide.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.