Bentonite and bentonite.Bentonite is refined from natural bentonite gel inorganic minerals.Bentonite is generally refers to a kind of is mainly composed of montmorillonite clay rock.Bentonite montmorillonite as the main effective components, content is about 90%, its molecular weight is about 720, is a tiny flat piece or page. When bentonite soak in hot water, each sheet body is spread out, the formation of homogeneous colloidal suspension.Per gram sodium base bentonite has a surface area of 750 square meters.Bentonite is a family of montmorillonite, bentonite collection often assumes the earthy, which often contains minerals such as quartz, feldspar, dolomite, calcite, so it is also known as bentonite (also known as bentonite, also known as the volcanic clay). 1, in the drilling, configuration with high rheological and thixotropic properties of drilling mud suspension. 2, in mechanical manufacturing, can make the casting sand, binder, can overcome the "sand inclusion of castings, the phenomenon of" peeling, decrease the casting scrap rate, ensure the accuracy of castings and finish. 3, used as paper filler in the paper industry, enhance the brightness of paper. 4, used in textile printing dyeing liquid antistatic coating, printed instead of starch sizing and coating.