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MC Na-200 Feldspar

Alternate Names: NA200, MC NA 200

OxideAnalysisFormula
BaO0.33%0.011
CaO1.82%0.167
K2O5.20%0.284
Na2O6.49%0.538
Al2O320.71%1.044
SiO264.84%5.548
Fe2O30.06%0.002
LOI0.40
Oxide Weight511.38
Formula Weight513.43
If this formula is not unified correctly please contact us.
SADR - Sieve Analysis Dry +140 mesh: 0.5 max +200: 1.5 max +325: 10.0 max
BDLB - Bulk Density lbs/cu. ft. (Packed) 90

The company was introducing this January 2007 and claimed: "A high quality sodium/potassium/calcium aluminum silicate, ground to 200 mesh for ceramic applications. Carefully beneficiated and controlled for quality, it offers a high alkali content and low iron oxide content per unit of alumina."
Cone 11 fired flow tests beside MC K-325 show this to melt much better even though it is a larger particle size. It also melts much better than Custer or G-200 and the melt flow is whiter than G-200 and much whiter than Custer.


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 Na-200 Feldspar" descrip="" searchkey="NA200, MC NA 200" loi="0.00" casnumber="12168-80-8"> <oxides> <oxide symbol="BaO" name="Barium Oxide, Baria" status="" percent="0.330" tolerance=""/> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="1.820" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="5.200" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="6.490" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="20.710" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="64.840" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.060" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="0.400" tolerance=""/> </volatiles> </material>


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