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Description: FINE GROUND SODIUM BENTONITE

Oxide	Analysis	Formula
CaO	1.51%	0.16
K2O	0.85%	0.05
MgO	3.85%	0.56
Na2O	2.40%	0.23
TiO2	0.17%	0.01
Al2O3	13.50%	0.78
SiO2	68.60%	6.71
Fe2O3	1.71%	0.06
LOI	7.40%	n/a
Oxide Weight		544.06
Formula Weight		587.54

Notes

A finely ground, white, sodium bentonite that exhibits low viscosity. Used as a binder in extruded bodies to add plasticity with no increases in viscosity.

Specific Gravity: 2.5
pH (5% dispersion): 8.5-9.5
C.E.C. (meq/100g): 80
Dry Brightness (Green Filter): 81
Color: White
% Moisture Content: 10% Max.
Brookfield Viscosity (60 rpm @ 5% solids): 28cps

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Materials	Bentonite Bentonite can make a clay body instantly plastic, only 2-3% can have a big effect. It also suspends slurries so they don't settle out and slows down drying.
Typecodes	Clay Other Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.

By Tony Hansen
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