Bentonite

Project Details

Details:Two types of bentonite are generally identified. One is called the swelling type or sodium bentonite, which has single water layer particles containing Na+ as the exchangeable ion. The other has double water layer particles with Ca++ as the exchangeable ion. It is called calcium bentonite or non-swelling type. Na+ or Ca++ is exchanged by Mg++ or Fe++. A third type of montmorillonite has been identified with zero water layer particles and is probably electrostatically neutral.

Applications:

1) Use as grouting material. 2) Use in drilling muds. 3) Use as decolourizer. 4) Use as foundry sands. 5) Use in cosmetic and pharmaceutical preparations

Related Project