Sil-o-spar

Description: Potash/sodium/calcium Feldspar

Oxide	Analysis	Formula
CaO	1.05%	0.15
K2O	2.86%	0.24
Na2O	4.86%	0.61
Al2O3	13.47%	1.04
SiO2	77.37%	10.10
Fe2O3	0.06%	-
LOI	0.07%	n/a
Oxide Weight		781.94
Formula Weight		782.49

Notes

Sil-O-Spar is a high quality blend of sodium/potassium/calcium aluminum silicate (feldspar) and silica, ground to 170 mesh, for ceramic applications. Carefully beneficiated and controlled for quality, Sil-O-Spar provides the advantages of pre-blended and uniformly sized non-plastic flux with low iron oxide content. Its coarse particle size makes it an ideal choice for casting slips.

Related Information

Links

URLs	http://www.zemex.com/feldspar/silospar.html Silospar Data Sheet
Materials	F-20 Feldspar
Materials	G-20 Feldspar
Materials	G-200 Feldspar
Materials	NC-4 Feldspar
Materials	Calcium Feldspar
Materials	Potash Feldspar
Materials	Soda Feldspar
Typecodes	Feldspar The most common source of fluxes for high and medium temperature glazes and bodies.

Data

Apparent Viscosity (cps)	14.37
Bulk Density lbs/cu. ft. (Packed)	37 loose, 87 packed
Sieve Analysis Dry	+200 mesh: 2.78% +325 mesh: 11.43%
Surface Area (m2/gm)	1.13
pH for dry powder	9

By Tony Hansen
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