Molecular formula： AL2O3 Molecular weight:101.96 CAS No.： 1344-28-1 EINECS No.:215-691-6 MDL：MFCD00003424
Item UnitValue
Appearance — White Powder
Crystal — α
Purity % 99.9
D1010,≥ μm 0.2
D5010,≥ μm 0.4-1.2
D1010,≤; μm 3.0
Loose Density g/cm3 0.35.0~0.55
Tap Density g/cm3 1.0~1.35
BET m2/g 4.0~9.0
Moisture,≤ ppm 3500
pH — 6.5~9.0
Fe ppm 10
Na ppm 10
Ca ppm 10
K ppm 10
Si ppm 50
Properties:
Alumina chemical formula Alsub>2O3, is the main element of the bauxite; White powder, with different crystal type, common is alpha-Alsub>2O3 and gamma-Alsub>2O3;Alpha- Alsub>2O3 six-party close packing of crystal, commonly known as corundum, its melting point 2045 ℃, the density 3.965 g/cm3, Moh’s hardness8.8, insoluble in water, acid or alkali; Gamma Al2O3 cubic close packing of crystal, insoluble in water, but soluble in acid and alkali, is typical of both sexes oxide.
Applications
Use for lithium battery diaphragm coated and electrode materials, precision polishing materials, alumina ceramic substrate, high purity alumina grinding ball, zirconium oxide grinding ball flexibilizer, electronic packaging materials, carbon reduction method in the production of aluminum nitride materials, thermal engineering plastic packing, senior refractories, spark plugs, inorganic membranes and biological functions such as ceramics and structure of ceramic materials.
Packing:
The outer packing plastic bags, lined with aluminum foil bag, net weight 25 kg/bag.
Storage:
Sealed store in a cool, dry place, prevent to be affected with damp.
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