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Namibia Products & Applications

Namibia 99.995% High Purity Alumina (4N5) for Luminescent Materials

The products have high purity, a narrow particle size distribution, small primary grain size, and a high α-phase conversion rate. 99.99% high purity alumina Model RB-Y-3-6 RB-Y-3-10 RB-Y-3-20 RB-Y-3-30 Appearance white powder Element Unit Typical Valve Purity Al2O3 % ≥99.995 ≥99.995 ≥99.995 ≥99.995 Si ppm ≤10 ≤10 ≤10 ≤10 Fe ppm ≤1 ≤1 ≤1 ≤1 Na ppm ≤30 ≤30 ≤30 ≤30 Mg ppm ≤1 ≤1 ≤1 ≤1 Ca ppm ≤1 ≤1 ≤1 ≤1 Cu ppm ≤0.5 ≤0.5 ≤0.5 ≤0.5 Ti ppm ≤0.5 ≤0.5 ≤0.5 ≤0.5 Cr ppm ≤0.5 ≤0.5 ≤0.5 ≤0.5 BET m2/g 3.0~8.0 3.0~8.0 3.0~8.0 3.0~8.0 Moisture % ≤0.5 ≤0.5 ≤0.5 ≤0.5 LOI % ≤0.1 / / / D50 μm 6±1 10±2 20~25 30~35 Apparent Density g/cm3 0.5~0.8 0.5~0.8 0.5~0.8 0.5~0.8 Remark Can be customized as required. Applications: Luminescent materials, advanced ceramics, fine polishing, surface coating, etc 4N high purity alumina

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