Low Temperature Studies with Colloidal Silicic Acid
- 12 August 1949
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 110 (2850), 161-162
- https://doi.org/10.1126/science.110.2850.161
Abstract
1. 1. Silica sols prepared with mineral acids and with ion-exchange resins have been frozen at −15°, −25°, −35°, −45°, −55°, −65°, and −190°C. 2. 2. The effects of hydrogen-ion concentration, rate of thawing, temperature of aging the frozen systems, and presence of electrolytes were investigated. 3. 3. The following factors were found to increase the stability of the systems: (a) low temperature of freezing, (b) low temperature of aging, (c) rapid rate of thawing, and (d) presence of lithium chloride and calcium chloride.Keywords
This publication has 3 references indexed in Scilit:
- Stability of Synthetic Rubber Dispersions. II. Coagulation of Neoprene Latices by Freezing.The Journal of Physical Chemistry, 1947
- Effect of Freezing on the Stability of Colloidal Dispersions. Silica Sols—A Preliminary Report.The Journal of Physical Chemistry, 1947
- Über den Einfluß niedriger Temperaturen auf den Zustand der KolloidsystemeColloid and Polymer Science, 1932