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Description: FINE WHITE CALCIUM HECTORITE

Oxide	Analysis	Formula
CaO	4.04%	0.12
K2O	0.33%	0.01
Li2O	1.50%	0.09
MgO	17.90%	0.77
Na2O	0.50%	0.01
TiO2	0.20%	-
Al2O3	4.21%	0.07
SiO2	44.10%	1.27
Fe2O3	1.36%	0.01
LOI	25.80%	n/a
Oxide Weight		128.25
Formula Weight		172.84

Notes

Finely ground, white, calcium hectorite clay. Used as a binder in extruded tile to increase green strength with minimum increases in viscosity.

Specific Gravity: 2.5
pH (5% dispersion): 8.5-9.5
C.E.C. (meq/100g): 104
Dry Brightness (Green Filter): 71
Color: White
% Moisture Content: 10% Max.
Brookfield Viscosity (60 rpm @ 5% solids): 24cps

Related Information

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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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