swelling

Determination of Swelling and Foaming Index

Many herbal drugs are of specific for the therapeutic or pharmaceutical utility because of their swelling properties − especially gums and drugs those are containing an appreciable amount of constituents like mucilage, pectin or hemicelluloses.

Swelling power of bentonite

Bentonite is a natural, colloidal, hydrated aluminium silicate that has been processed to remove grit and non-swelling components of the ore.