Aluminium hydroxide. Increase the scratch and chemical resistance of the glazes.
Al2O3 * 3H2O - Molar weight: 156
Chem. analysis in %:
Al2O3 65.0; Fe2O3 <0.02; SiO2 <0.02; Na2O < 0.04; Loss of ignition 34.5.
Grinding fineness in %:
63 µm bis 45 µm - 10-35
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