... ,Bentonite is absorbent clay consisting mostly of the mineral montmorillonite 2,use:piling, foundry, palletizing cosmetics etc Calcium Bentonite for various ... montmorillonite may be written as (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2•(H2O)n. There are two types of Bentonite: sodium ... etc.Physical Property itemSLC—1SLC—2wet tensile strength ,kPa ≥ 2.5 ≥ 2.0 Cation-ExchangeCapacity, g/100g ≥35≥28 sieving(75μm ...