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Science 13 September 1963:
Vol. 141. no. 3585, pp. 1040 - 1041
DOI: 10.1126/science.141.3585.1040
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Articles

Volume Changes of a Thixotropic, Sodium Bentonite Suspension during Sol-Gel-Sol Transition

Duwayne M. Anderson 1, George F. Leaming 1, and Garrison Sposito 1

1 Department of Agricultural Chemistry and Soils, University of Arizona, Tucson

Dilatometric measurements during the sol-gel-sol transition of an air-free, thixotropic, sodium bentonite suspension revealed a reversible change in volume of about 2.4 X 10-4 percent. The volume of the suspension increased during gelation and decreased when the gel was subsequently liquified. This is taken as evidence of a progressive building up, during gelation, of a water structure less dense than normal.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Crystallization of Clay-Adsorbed Water.
D. M. Anderson and P. Hoekstra (1965)
Science 149, 318-319
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)