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Bentonites are clay minerals which result from the decomposition of volcanic ash (tuff) and consist of the minerals montmorillonite and beidelleite (semctite group of minerals). Mineral composition and chemical data of bentonites are stored on separate pages. Due to their montmorillonite-content bentonites swell and form thixotropic gels. Thus they can be used as suspension-stabilizing additives in coatings. The metal ions in bentonites can be exchanged for quarternary ammonium ions forming "bentone", which find application as thickeners and rheological additives in solvent-containing systems.

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.