K-40 Feldspar

Description: POTASH/SODIUM/CALCIUM FELDSPAR

Oxide	Analysis	Formula
CaO	0.17%	0.02
K2O	10.60%	0.66
MgO	0.05%	0.01
Na2O	3.30%	0.31
Al2O3	17.88%	1.03
SiO2	67.34%	6.59
Fe2O3	0.08%	-
LOI	0.19%	n/a
Oxide Weight		584.74
Formula Weight		585.86

Notes

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

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Typecodes

Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies.

By Tony Hansen
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