Calcined Bauxite
SiO2 : 10% max.
Al2O3 : 85% min.
Fe2O3 : 1% max.
TiO2 : 4% max.
K2O+Na2O : 1.5% max.
CaO+MgO : 1% max.
True density : 3.55g/cm3 min.
Granularity (>63?m) : 1% max.
Magnet aspirate : 0.01% max.
Refractoriness : 1790°C min.
Main crystal corundum + Mullite : 80% min.
CIF Shanghai
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