Mineral composed with
materials such as montmorillonite minerals of mica typed
layer silicate, mineral among the Smectite groups, kaoin,
quartz, cristobalite, mica, illite, etc.
The characteristics of bentonite
Expands 30~40 times its original size by absorbing moist
between the layers of montmorillonite.
Cations exist between montmorillonite layers, and the
exchange amounts of cations are 90 ~ 120.
Colloid properties :
The size of a montmorillonite particle is 100~1000nm
in diameter and 5~10nm in thickness. It has a similar
size with a colloid.
Large surface areas :
Montmorillonite is composed with colloid-sized particles,
and the theoretical inner surface area is 750~800m2/g.