... .It is used in the production of fused salt eletrorefining aluminium, corundum eramics, refractories and other alumina chemical products1. Main standardChemical ... , Cu, V, Zr, Cr, Li, Pb, B, P, etc.ApplicationEletrorefining aluminium, corundum eramics, refractories and other alumina chemical products. 2. SpecificationNoItemUnitIndexOne ... .020.034Na2)/%≤0.500.605Loss in burning%1.01.0 Aluminium oxide