CAS number : 1344-28-1
Molecular weight :
Molecular formula/chemical symbol :Al2O3
Description :
White, odorless powder, high purity, ultrafine, uniform particle size distribution.
USES :
Typical Uses |
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Gas laser tubes |
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Wear pads |
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Seal rings |
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High temperature electrical insulators |
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High voltage insulators |
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Furnace liner tubes |
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Thread and wire guides |
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Electronic substrates |
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Ballistic armor |
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Abrasion resistant tube and elbow liners |
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Thermometry sensors |
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Laboratory instrument tubes and sample holders |
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Instrumentation parts for thermal property test machines |
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Grinding media |
Report :
Key Properties |
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Hard, wear-resistant |
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Excellent dielectric properties from DC to GHz frequencies |
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Resists strong acid and alkali attack at elevated temperatures |
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Good thermal conductivity |
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Excellent size and shape capability |
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High strength and stiffness |
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Available in purity ranges from 94%, an easily metallizable composition, to 99.5% for the most demanding high temperature applications. |
Inspection test results
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Product |
Aluminum oxide |
CAS: 1344-28-1 |
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Character |
White, odorless powder |
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Formula |
Al2O3 |
Purity: |
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Test item |
Test result |
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Powder |
massive |
particles |
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Crystal |
a |
a |
a |
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White loose powder |
white block |
white particles |
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An average particle size (um) |
0.2-3 |
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3-12 |
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Loose density (g/cm) |
0.4-0.6 |
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0.8-1.5 |
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Block density (g/cm) |
-------- |
3.3-3.8 |
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Al2O3（%） |
99.999 |
99.999 |
99.999 |
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Si(ppm) |
3 |
3 |
3 |
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Na(ppm) |
1 |
1 |
1 |
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Fe(ppm) |
2 |
2 |
2 |
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Ca(ppm) |
1 |
1 |
1 |
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Mg(ppm) |
1 |
1 |
1 |
