A Dictionary of Chemistry and the Allied Branches of Other Sciences, Vol. 3 of 4

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Excerpt from A Dictionary of Chemistry and the Allied Branches of Other Sciences, Vol. 3 of 4: Haemaphein-MysorinHaematein dissolves slowly in cold, more readily in boiling water. On quickly evaporating a solution prepared at the boiling heat, it becomes covered with shining green scales, which sink to the bottom and are gradually replaced by others. Some times also the solution solidifies ih a gelatinous mass, which yields micaceous laminae when suspended in water. Haematein likewise dissolves in alcohol and very sparingly in ether. It dissolves with red-brown colour in the mineral acids, less easily in acetic acid. Sulphydric acid decolorises it, but does not convert it into haematoxylin. It is carbonised by heat.Haematein unites readily with bases. Potash dissolves it, forming a blue solution, which turns brown on exposure to the air. Ammonia dissolves it with a fine purple colour, which likewise turns brown in the air.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.