CATION EXCHANGE IN ANHYDROUS ETHYLENEDIAMINE
- 1 May 1965
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 43 (5) , 1096-1101
- https://doi.org/10.1139/v65-146
Abstract
The swelling of the strongly acid cation exchangers Dowex 50 W of various degrees of cross-linking is markedly less in ethylenediamine than in water. However, it is sufficient for exchange reactions to occur. In contrast with aqueous solutions, electrolytes dissolved in ethylenediamine cause the swelling to increase, which is attributed to the low degree of dissociation attainable in this solvent. This explanation is supported by the observation that in water slightly dissociated electrolytes also produce a slight increase in swelling. Exchange reactions were carried out successfully with the slightly cross-linked resin Dowex 50 W-X2. The bromide, ethoxide, aminoethoxide, and 2-aminoethylamide of lithium exchanged the latter cation with other alkali metals or tetrabutylammonium easily.Keywords
This publication has 1 reference indexed in Scilit:
- 174. Properties of ion-exchange resins in relation to their structure. Part V. Exchange of organic cationsJournal of the Chemical Society, 1953