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 A feldspar having a KNaO content that predominates in potassium.
Materials	Soda Feldspar A feldspar having a KNaO content that predominates in sodium.
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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