Bentonite is naturally occuring hydrated Aluminium Silicate. The most important use of Bentonite is based on its natural thickening property. We can surely say that bentonite is most economic natural thickner available to industries. It has ability to absorb water several times of its weight and give thickstropic effect.
Chemical Formula : Al2O34SiO2H2O
Physical Properties :
|Sp. gravity||: 2.3 - 2.5|
|PH of 10% Aqueous solution||: 8.0 - 8.5|
|Volatile matter||: max 10.0%|
Chemical Composition :
|Ferric Oxide||: 01.25%|
Industrial Applications :
The greatest application of bentonite is in oil drilling. Great quantities of bentonite are used in drilling mud. In paint industry it is used as thickener in cheap quality paints, primers and water based coatings. It is used in manufacture of cheap quality goods.