Saturation Relations in Mixtures of Sucrose, Dextrose, and Levulose (Classic Reprint)

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Excerpt from Saturation Relations in Mixtures of Sucrose, Dextrose, and LevuloseA saturated solution of pure sucrose contains at 20° C. Per cent of sugar. Such a solution possesses too low a density to be useful as a sirup and is, moreover, a favorable medium for the growth of microorganisms. If concentrated to a higher density it may remain supersaturated temporarily, but eventually deposits crystals of sugar. It has been recognized that by partial inver sion the total sugar content may be increased without causing supersaturation, but if the sucrose is completely inverted the relatively low solubility of dextrose limits the total sugar content of the sirup. There is, consequently, at each temperature a ratio of sucrose to invert sugar at which the concentration of total sugar attains a maximum. The determination of this maximum solubility is of considerable practical significance.The problems then are concerned with the solubilities of sucrose and dextrose in the presence of each other and in the presence of invert sugar. Levulose, although rarely, appearing as a solid phase, is a constituent of invert sugar and is, moreover, present in honey and similar products. It therefore exerts its in¿uence upon the solubilities in question.For the solution of these problems it is evidently necessary to make measurements of the solubility of each of the constituent sugars in the presence of varying amounts of each' of the others. In other words, we require the. Phase rule and its systematic method of treatment. We have, therefore, studied the various phase rule systems which are pertinent to the present problem.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.