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Alkatrol

Andalusite/pyrophyllite/sericite

OxideAnalysisFormula
K2O1.30%0.067
Na2O1.30%0.102
TiO20.50%0.030
Al2O321.00%1.000
SiO273.10%5.908
Fe2O30.40%0.012
LOI2.50
Oxide Weight474.06
Formula Weight486.21
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 2.60

Sericite is blended with andalusite/pyrophyllite ore to lower the PCE and produce the Alkatrol series of products. These are added to wall and floor tile to increase fired strength, in stoneware, structural ceramics, coatings, and whiteware ceramics to improve whiteness, widen firing range, reduce warpage, increase thermal shock resistance, and stabilize shrinkage.

This material is manufactured by crushing & screening and dry milling of selectively mined andalusite/pyrophyllite/sericite ores.

Individual alkatrol variations have different chemistries, the one shown here is an average.


Mechanisms

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In Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Alkatrol" descrip="Andalusite/pyrophyllite/sericite" searchkey="" loi="0.00" casnumber="12269-78-2"> <oxides> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.300" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="1.300" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.500" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="21.000" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="73.100" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.400" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="2.500" tolerance=""/> </volatiles> </material>


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