Aluminium Oxide

Aluminium Oxide

Synonyms: Alumina Powder, Aluminum Oxide,  High Purity Aluminium Oxide, Superfine Aluminium Oxide, Calcination α Type Aluminium Oxide, Nanometer Aluminium Oxide, Low Temperature Aluminium Oxide, High Temperature Aluminium Oxide

  • Molecular Formula: Al₂O₃
  • CAS No.: 1344-28-1
  • EINECS No.: 215-691-6
  • Execution Standard: GB/T 24487-2009
  • Package: 10kg/carton, 25kg Inner lined aluminum foil woven bag, 1000kg large bag
  • Storage: Sealed, keep in a cool, dry, well ventilated place. Avoid direct sunlight
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Other chemical names:

Aluminum oxide basic; Alumina acidic; Alumina basic; Alumina neutral;  Aluminiumoxid (German); óxido de aluminio (Spanish); Oxyde d’aluminium (French);

Ceramic grade alumina

Aluminium Oxide Powder Materials for Electronic Ceramics are divided into four categories:
Class 1: general alumina powder
Class 2: fine-grained alumina powder
Class 3: superfine grained alumina powder
Class 4: high-purity superfine grained alumina powder
Categories                                                               Ingredients and Content /%
Al₂O₃SiO2MgOCaOFe2O3Na2OLoss on Ignition
1≥99.0≤0.10             ≤0.05≤0.05≤0.10≤0.40
2≥99.5≥0.08             ≤0.05≤0.04≤0.06≤0.02
3≥99.5≥0.08             ≤0.05≤0.03≤0.03≤0.02
4≥99.99                                     Impurity content /×10-6
NaPb          SiFeCaMgZnTi
506          5020302045
Categories                                                    Physical Property
                    Particle size distribution

True density

/(g ·cm-3)

Crystal type  α-Al₂O₃ /%

Particle size /μm ≤

Content / %≥
11095≥3.96≥95
550
2790
350
3590
250
4

                Average particle size d≤0.3μm

    —      — 

Industrial grade alumina technical data:

Al₂O₃SiO₂Fe2O3Na2OLoss on IgnitionParticle size /μm
>98.6<0.04<0.03<0.210100

 

Sandy Metallurgical Grade Alumina

Metallurgical grade Alumina is the main raw material for producing aluminum ingots, which has the characteristics of high strength, light flying, good fluidity, easy dissolution, and strong fluoride absorption with low impurity content of iron (Fe), sodium (Na), zinc (Zn), and lithium (Li).

Application:

Aluminum oxide is widely used in the manufacturing of refractory materials, ceramics, abrasives, catalyst carriers, etc. It can be used as an analytical reagent, adsorbent, catalyst and catalyst carrier, vacuum coating, special glass raw materials, composite materials, resin fillers, bioceramics, etc. In addition, alumina is also used to manufacture corundum, ceramics, refractory products, and other alumina chemical products.