Appearance (Colour)
Cream coloured
Appearance (Form)
Powder
pH
9.0 - 10.5
Loss on drying
max. 15%
Coarse particle
min. 0.5%
Heavy metals
max. 0.005%
Sedimentation volume
Passes
Swelling power
Passes
Notes
Bentonite is an absorbent aluminium phyllosilicate, impure clay consisting mostly of montmorillonite. The main uses of bentonite are for drilling mud, binder (e.g. foundry-sand bond, iron ore pelletizer), purifier, absorbent (e.g. pet litter), and as a groundwater barrier.
