RefractoryClay
HiCal
Highly Calcined Alumino Silicate – Calcined Kaolin
ORIGIN: India
Mineralogical Composition: Mullite (>60%)
Physical Properties Typical
Form Supplied
Sand
8-20#; 16-30#, 30-80#,
50-80#,
1-3mm, 3-5mm, 5-10mm
Flour
200#
Apparent Porosity 7 – 8
Hardness 7 – 8 Mohs
PCE 1750 – 1770 °C
Specific Gravity 2.4 to 2.6
Bulk Density 2.1 – 2.4 gm/ltr
Loss on Ignition <0.5%
Chemical Analysis Typical
Al2O3 42 to 60%
Fe2O3 1.3 to 1.5%
TiO22 4% max
Alkaline Impurities <1%