Alumina for Polish

 

Grade PM-P02 PM-P03 PM-P05B8 PM-P05B7 PM-P08
Appearance White Powder White Powder White Powder White Powder White Powder
Purity (%) 99.95 99.95 99.95 99.95 99.95
Crystal From α α α α α
BET (m²⁄g) 15 10 8 7 6
Average Particle Size, D50 (μm) 0.20 0.30 0.50 0.50 0.80
Bulk Density (g⁄cm³) 0.4 0.43-0.50 0.5 0.44 0.48-0.65
Tap Density (g⁄cm³) - - - - -
Impurities(≤ ppm) Si 50 50 50 50 50
Fe 60 60 60 60 60
Na 100 100 100 100 100
K - - - - -
Ca - - - - -
Mg - - - - -


Grade PM-P10B5 PM-P10B4 PM-P15 PM-P20 A4NαBs
Appearance White Powder White Powder White Powder White Powder White Powder
Purity (%) 99.95 99.95 99.95 99.95 99.99
Crystal From α α α α α
BET (m²⁄g) 5 4 3 2.5 3.0-3.5
Average Particle Size, D50 (μm) 1.00 1.00 1.50 2.00 1.8-2.4
Bulk Density (g⁄cm³) 0.55-0.70 0.55-0.70 0.65 0.65 0.28-0.32
Tap Density (g⁄cm³) - - - - 0.62-0.68
Impurities(≤ ppm) Si 50 50 50 50 12
Fe 60 60 60 60 2.5
Na 100 100 100 100 2
K - - - - 1
Ca - - - - 2
Mg - - - - 1