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Crystaltype | α |
Appearance | white powder |
Purity | sapphire grade |
Na | ≤0.0005% |
Fe | ≤0.0003% |
Ca | ≤0.0003% |
Si | ≤0.0006% |
Cu | ≤0.0001% |
Mg | ≤0.0001% |
Ti | ≤0.0001% |
Cr | ≤0.0001% |
Zn | ≤0.0001% |
Pb | ≤0.0001% |
Mn | ≤0.0001% |
Ni | ≤0.0001% |
D50 | 1~25um |
BET | 3.0-8.0m2/g |
Loose Density | 0.4~0.8g/cm3 |
Water Content | ≤0.5% |
