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FT-RA Clay

Description: Westerwald, Germany - Plastic Clay

Oxide Analysis Formula
CaO 0.30% 0.03
K2O 2.10% 0.11
MgO 0.40% 0.05
Na2O 0.20% 0.02
TiO2 1.20% 0.07
Al2O3 21.20% 1.00
SiO2 59.70% 4.78
Fe2O3 8.30% 0.25
LOI 6.90%n/a
C 0.20%n/a
Oxide Weight 449.38
Formula Weight 483.72

Notes

Raw Color - LIGHT RED - DARK RED
Particle Size (e.s.d.)
125 microns - 0.1
63 microns - 1.5
20 microns - 94
2 microns - 74
.5 microns - 61
Modulus of Rupture at 110C
Mn/M2 - 6.7
lbf/in2 - 970
Water Absorption
1120C - 0.0
1220C - 1.00
Shrinkage Dry to Fired
1120C - 12.0
1220C - 8.5
Plastic Index - 764
PF NO. - 32.2

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.
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