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MC 200K Feldspar

Feldspar

Alternate Names: MC 200-K Feldspar

OxideAnalysisFormula
CaO0.20%0.022
K2O12.80%0.839
Na2O1.40%0.139
Al2O318.10%1.095
SiO264.20%6.593
Fe2O30.06%0.002
LOI0.56
Oxide Weight597.19
Formula Weight600.55
If this formula is not unified correctly please contact us.

Consider this as an alternative to G200 as a 200 mesh feldspar. It is very clean and exceptionally low in iron (due to their froth flotation process). 325 and even 625 mesh versions are also available, they have the same chemistry.

The company says: MC 200-K Feldspar is a high quality potassium/sodium/calcium aluminum silicate ground to 200 mesh for ceramic applications. Carefully beneficiated and controlled for quality, MC 200-K Feldspar offers high potash and low iron oxide
content per unit of alumina.


Feldspars, the primary high temperature flux, melt less than you think.

Feldspars, the primary high temperature flux, melt less than you think.

A cone 8 comparative flow tests of Custer, G-200 and i-minerals high soda and high potassium feldspars. Notice how little the pure materials are moving (bottom), even though they are fired to cone 11. In addition, the sodium feldspars move better than the potassium ones. But feldspars do their real fluxing work when they can interact with other materials. Notice how well they flow with only 10% frit added (top), even though they are being fired three cones lower.

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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="MC 200K Feldspar" descrip="Feldspar" searchkey="MC 200-K Feldspar" loi="0.00" casnumber=""> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="12.800" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="1.400" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="18.100" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="64.200" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.060" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="0.560" tolerance=""/> </volatiles> </material>


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