Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
613872 | Journal of Colloid and Interface Science | 2006 | 8 Pages |
Abstract
Five bentonite samples (35–47% montmorillonite) from a Sarmatian sediment series with bentonite sites around Sajóbábony (Hungary) is studied. Some of these samples were tuffogenic bentonite (sedimentary), the others were bentonitized tuff with volcano sedimentary origin. The acid–base properties of the edge sites were studied by potentiometric titrations and surface complexation modeling. It was found that the number and the ratio of silanol and aluminol sites as well as the intrinsic stability constants are different for the sedimentary bentonite and bentonitized tuff. The characteristic properties of the edges sites depend on the origins. The acid–base properties are compared to other commercial and standard bentonites.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Noémi M. Nagy, József Kónya,