Bentonite powder is a soft, naturally occurring clay mineral that has many uses:
CompositionBentonite is made up of montmorillonite, a hydrous aluminum silicate, and is formed when volcanic ash and rocks are altered by water.
PropertiesBentonite has a colloidal structure in water, and when it comes into contact with water, it swells and increases in volume, creating a viscous, gelatinous substance.
UsesBentonite has many uses, including:
Nuclear waste repositories: Bentonite barriers can control microbial activity.
Pulp and paper mills: Bentonite is used to remove color, starch, and other substances.
Skin care: Bentonite is used in facial masks, shampoos, toothpaste, and soaps. It can also be used as an exfoliant.
Cat litter: Calcium bentonite is used in cat litter that doesn't clump.
Mortar: Bentonite can be mixed with lime putty mortar to make it hydraulic.