Sodium bentonite is most widely known for its ability to swell. It can absorb nearly 5 times its weight in water and at full saturation may occupy a volume 12 to 15 times its dry bulk. ... Bentonite Clay. 2. SAP No 1000064966. 3. Supplier Oman Drilling Mud Products Co.LLC. 4. Composition Alumina and silica in the ratio of 1:4 m/m. soda ash ...