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powdered alumina
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product name: | powdered alumina |
| Place of Origin: | Peoples Republic of China | |
| Post Date: | November 25, 2009 | |
| Edit Date: | November 25, 2009 | |
Detailed Product Description:
Aluminum for the silver-gray metal, the relative quality of 26.98 points, relative density 2.55, 99.5% purity aluminum melting p
Detailed Description
Alumina powder(alumina, powdered alumina, calcined alumina, aluminum oxide)
High Purity Powdered Alumina and products are mainly used for special type ceramic, high voltage sodium lamp, raw materials for fluorescent powder, catalyzer carrier, special type grinding materials, etc..
1.0 Materials Description:
1.1 Alumina powder
1.2 Purity:99.99% min
2.0 Physical Specification:
2.1 Configuration:powder
2.2 Colour: white
3.0 Chemical Requirements:
3.1 Composition/Tolerance:
3.2 Impurity:
Spec | Al(OH)3 | γ-Al2O3 | α-Al2O3 |
Al2O3 % | 99.99 | 99.99 | 99.99 |
Si % < | 0.009 | 0.0010 | 0.0010 |
Fe % < | 0.0005 | 0.0006 | 0.0006 |
Mg % < | 0.0008 | 0.0009 | 0.0009 |
Ca % < | 0.0009 | 0.0010 | 0.0010 |
Cu % < | 0.0003 | 0.0004 | 0.0004 |
Co % < | 0.0002 | 0.0003 | 0.0003 |
Ni % < | 0.0002 | 0.0003 | 0.0003 |
Pb % < | 0.0004 | 0.0005 | 0.0005 |
Na %< | 0.0002 | 0.0003 | 0.0003 |
Area (m2/g) | 40-50 | 150-200 | 4-11 |
d50 (µm) | 0.8-15 | 0.6-20 | 0.5-10 |