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99.99γ-Al₂O₃ High-purity Ultrafine Powder

99.99γ-Al2O3 is odorless, tasteless and white powder. It is unstable crystal, and turns into θ-Al2O3 when the temperature is 1000℃ and stable α-Al2O3 when 1180℃. It is transparent or semitransparent, and its primary diameter is 6~10nm. The specific surface area is large (BET, 100~400m2/g) and surface chemistry is highly active.
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Product description
Parameters

Molecular formula Al2O3

Molecular Weight 101.96

Chemical Name Aluminium Oxide

Einecs No. 215-691-6

Cas No. 1344-28-1

 

Specifications 

 

Parameters

Chemson-818F-100

Chemson-818F-180

Appearance

White Powder

White Powder

Crystal

γ

γ

Purity, %

99.99

99.99

Primary Diameter, nm

6~10

6~10

D50, μm  ≤

5

6

Loose Density, g/cm3

0.10~0.28

0.08~0.25

Tap Density, g/cm3

0.20~0.35

0.18~0.35

BET, m2/g

100±20

180±20

Impurity Element Content, ppm ≤

Silicium (Si)

50

50

Iron (Fe)

5

5

Sodium (Na)

10

10

Calcium (Ca)

5

5

Potassium (K)

5

5

 

 γ-Al2O3(TEM)

 

Characteristics γ-Al2O3 is odorless, tasteless and white powder. It is unstable crystal, and turns into θ-Al2O3 when the temperature is 1000℃ and stable α-Al2O3 when 1180℃. It is transparent or semitransparent, and its primary diameter is 6~10nm. The specific surface area is large (BET, 100~400m2/g) and surface chemistry is highly active.

 

Applications Widely used as filler, catalyst carrier, desiccant, adsorbent, depurant, inside wall film of lamp, imitation jewel, inorganic membrane etc..

 

Packaging Coextruded paper bags lined with plastic film, net weight 10Kg/bag.

 

Storage Store in a cool, dry, well-ventilated area away from sunlight.

 

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al2o3
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Rm. 504, No.1398, PingLiang Rd.,Yangpu District, Shanghai, China 

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The company insists on independent innovation, and has obtained a number of scientific research achievements and invention patents in the fields of rubber chemicals and ultrafine materials.

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