Digitalfire Ceramic Materials Database

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K-40 Feldspar

POTASH/SODIUM/CALCIUM FELDSPAR

Chemistry %

CaO	0.17
MgO	0.05
K2O	10.60
Na2O	3.30
Al2O3	17.88
SiO2	67.34
Fe2O3	0.08

Volatiles %

LOI

0.19

K-40 is used as a source of alumina and potash in specialized glass batch formulations requiring high potassium levels. Carefully beneficiated using the froth floation process, K-40 Feldspar offers low iron and high alkali content per unit of alumina.

Screen Analysis (Cum %):
+30 mesh: 0.1
+40 mesh: 0.22
+200 mesh: 95.9

Bulk Density: 90 lbs/cu ft

Out Bound Links

(Typecodes - Type) 1: FEL - Feldspar

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?>
<material name="K-40 Feldspar" descrip="POTASH/SODIUM/CALCIUM FELDSPAR" searchkey="" loi="0.19" casnumber="12168-80-8">
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.170" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.050" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="10.600" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="3.300" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="17.880" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="67.340" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.080" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="0.190" tolerance=""/>
</volatiles>
</material>