Calcined Alumina
It is white powder, good flowability, performance stability, hardly soluble in acid and alkali, excellent sintering property. It used as high quality material for aluminous refractory, sintering coroundum and electric ceramics.
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Chemical composition
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Alumina (α -AL2O3) / Calcined
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Appearance
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White powder
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Package
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25kg woven bag, 1000kg big bag
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Characteristics
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It is white powder, good flowability, performance stability, hardly soluble in acid and alkali, excellent sintering property.
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Application
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luminous refractory, sintering coroundum and electric ceramics.
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No
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Item
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Unit
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Index
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SS-1
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SS-2
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1
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AL2O3
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%≥
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99.5
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99.5
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2
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SiO2
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%≤
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0.026
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0.06
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3
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Fe2O3
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%≤
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0.04
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0.03
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4
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Na2O
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%≤
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0.20
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0.30
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5
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Loss in burning
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%
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1.0
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1.0
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6
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α -AL2O3
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%≥
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94.0
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93.0
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7
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Proportion
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%≥ g/cm3
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3.94
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3.95
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