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FT-W Clay

Description: Westerwald, Germany - Plastic Clay

Oxide Analysis Formula
CaO 0.20% 0.02
K2O 2.10% 0.11
MgO 0.10% 0.01
Na2O 0.20% 0.02
TiO2 1.30% 0.08
Al2O3 20.10% 1.00
SiO2 69.30% 5.85
Fe2O3 0.90% 0.03
LOI 5.80%n/a
C 0.20%n/a
Oxide Weight 478.03
Formula Weight 508.54

Notes

Raw Color - WHITE-LIGHT GREY
Particle Size (e.s.d.)
125 microns - 0.2
63 microns - 1.2
20 microns - 92
2 microns - 61
.5 microns - 42
Modulus of Rupture at 110C
Mn/M2 - 4.1
lbf/in2 - 600
Water Absorption
1120C - 6.0
1220C - 0
Shrinkage Dry to Fired
1120C - 7.0
1220C - 9.5
Refractoriness
Cone - 30, 1670C
Plastic Index - 508
PF NO. - 27.8

Related Information

Links

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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