Sodium bentonite definition

Sodium bentonite means a clay formed from the decomposition and recrystallization of volcanic ash and is largely composed of the clay mineral montmorillonite (Na.33 (Al1.67Mg.33) Si4O10 (OH)2), commonly referred to as “western” or “Wyoming” bentonite, and has extensive ability to absorb water and swell to many times its original volume.
Sodium bentonite means a colloidal clay that: