Studies in Conductivity on Non-aqueous Solutions PDF Download
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Author: Chris John Wernlund
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Category :
Languages : en
Pages :
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Author: Chris John Wernlund
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Category :
Languages : en
Pages :
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Author: George Frederick Henry
Publisher:
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Category :
Languages : en
Pages :
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Author: Leon Irwin Shaw
Publisher:
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Category :
Languages : en
Pages : 28
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Author: M. Ussanowitsch
Publisher:
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Category :
Languages : en
Pages : 18
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Author: Azariah Thomas Lincoln
Publisher: Wentworth Press
ISBN: 9781010770954
Category : History
Languages : en
Pages : 86
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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Rockefeller Institute for Medical Research
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 762
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Author: Azariah Thomas Lincoln
Publisher: Forgotten Books
ISBN: 9780331959482
Category : Science
Languages : en
Pages : 84
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Excerpt from The Electrical Conductivity of Non-Aqueous Solutions Van't Hoff formulated his modern theory of solutions from the results of Pfeffer's classic experiments on the osmotic pressure of a few substances in aqueous solutions, and from the work of de Vries 3 who pointed out that equimolecular quantities of dissolved substances produce the same osmotic pressure. Van't Hoff' stated that the condition of a substance in the gaseous state is analogous to the condition in which a substance exists in dilute solutions wherein the osmotic pres sure of the dissolved substance corresponds to the pressure of the gaseous particles. It was soon observed, ahowever, that many substances did not give normal values for the osmotic pressure, the rise of the boiling, or lowering of the freezing point; and thus that the laws of gases would not hold for solu tions of these substances. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com 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.
Author:
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ISBN:
Category : Medicine
Languages : en
Pages : 760
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Consists chiefly of reprints from various medical journals.
Author: Azariah Thomas Lincoln
Publisher:
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Category : Electrolytes
Languages : en
Pages : 90
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Author: Yexuan Lu
Publisher:
ISBN:
Category : Electric conductivity
Languages : en
Pages : 29
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The conductivity behavior of ionomers and ionic liquids in non-aqueous solvents was studied. Ionic liquids (BMIM-PF6 and EMIM-TF) were dissolved in polar (DMF) and non-polar (THF) solvents and solution conductivity was measured. When dissolved in a polar solvent, ionic groups in ionic liquids stayed as electrolytes, which resulted in the high conductivity of the solution in DMF. The conductivity measurement was also carried out on the systems of polymers (SPS-Na ionomer, PS, and PMMA) and an ionic liquid (BMIM-PF6) dissolved in DMF and THF, respectively. Regardless of the types of polymers, all the solutions in DMF showed the same conductivity, which was identical to that of the pure ionic liquid in DMF. However, when the solvent was switched to THF, the conductivity of the solution containing both ionic liquid and ionomer was negligible compared to the other solutions. This change in conductivity was due to the aggregation between ionomer and ionic liquid in a non-polar solvent (THF). In order to further investigate the effect of the solvent polarity on the solution conductivity with both ionic liquid and ionomer, ionomer was dissolved in a series of DMF/THF solvent mixtures and the ionic liquid was added. At the same concentration of the ionic liquid, the solution conductivity increased with increasing the content of DMF. This phenomenon suggests that the ionic groups tend to dissociate in the high-polarity solvent and associate in the low-polarity solvent.
