A Glycol-Sodium Vermiculite Complex1

W. F. Bradley, E. J. Weiss and R. A. Rowland
Department of Chemical Engineering, The University of Texas, Austin
Shell Development Company, Houston, Texas
1EPR Publication no. 289, Shell Development Company, Exploration and Production Research Division, Houston, Texas.

Abstract: A complex of vermiculite with ethylene glycol was prepared by repeated boiling of a sodium-saturated cleavage flake in dry ethylene glycol. A stable product with a c period of 12.9 Å afforded 15 terms for a one-dimensional Fourier synthesis. A model composed of glycol molecules with the plane of the zigzag normal to the silicate face is found to be consistent with the observed diffraction data. The complex apparently conforms to a stoichiometric ratio of two molecules per unit cell per layer of vermiculite.

Clays and Clay Minerals; 1961 v. 10; no. 1; p. 117-122; DOI: 10.1346/CCMN.1961.0100111
© 1961, The Clay Minerals Society
Clay Minerals Society (www.clays.org)