Application:
Fluxes for stoneware bodies, glazes amd porcelain bodies. Lower melting than potash spar.
Na2O * Al2O3 * 6 SiO2 - Molar weight: 524
Chem. analysis in %:
SiO2 69.00; Al2O3 17.50; Fe2O3 0.25; Na2O 9.50;
K2O 0.30; CaO 1.00; MgO 0.40; Loss of ignition 1.00.
Mineralogical analysis in %:
Na-Feldsp. 81.0; Ca-Feldsp. 4.0; Na+Ca-Felds. 85; Ges.
Feldspat 85; quartz 8; Tonsubst. 5; SK-Fallpkt. 4a/5a.
Grinding fineness in %:
100< 64 µm
Only remnants
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