Bentonite ndi mtundu wa madzi okhala ndi dongo ladongo makamaka lopangidwa ndi montmorillonite, chifukwa cha zinthu zake zapadera.Monga: kutupa, cohesiveness, adsorption, catalysis, thixotropy, kuyimitsidwa, cation kuwombola, etc.
Mtengo wa PH 8.9-10