Anthraquinone

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Excerpt from Anthraquinone: 1, 8 Aliphatic Thio-Ether-Sulphonic Acids and Di-Thio-Ethers: A Dissertation Submitted to the Board of University Studies of the Johns Hopkins University in With the Requirements for the Degree of Doctor of PhilosophyIn the hope of obtaining derivatives of anthraquinone sulfonic acids which would have suitable melting points for their identification, the problem of replacing sulfonic acid groups was undertaken. It was known that sulfonic acid groups of anthraquinone-sulphonic-acids could be replaced by methoxy1 or pheno'xy groups2 and that the resulting compounds, and qob H5 are crystalline and have definite though rather high melting points.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.