Excerpt from On Abietic Acid and Related Resin Acids From Oleoresin of American Conifers: A Thesis By successive crystallizations extending over a period of three months about 200 grams of resin acid were obtained in fairly pure condition. This was placed in a glass stoppered bottle and labeled Material 'a'. During the first crystallization from alcohol only the purer acid was re-dissolved. The impure solid was set aside in each case and finally mixed with that obtained from the acetic acid crystallisation which see. ...
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Excerpt from On Abietic Acid and Related Resin Acids From Oleoresin of American Conifers: A Thesis By successive crystallizations extending over a period of three months about 200 grams of resin acid were obtained in fairly pure condition. This was placed in a glass stoppered bottle and labeled Material 'a'. During the first crystallization from alcohol only the purer acid was re-dissolved. The impure solid was set aside in each case and finally mixed with that obtained from the acetic acid crystallisation which see. Approximately 200 grams of equally pure abietic acid were contaminated with capper when the flask contain. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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