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Calcined Alumina (Al2O3)

 

  MN/Y MN/Y-407 DN-6 DN-440 DN-430 DN-420 DN-206
Al2O3 (%) ≈99.0 ≈99.0 ≈99.3 ≈99.3 ≈99.3 ≈99.3 ≈99.3
Na2O (%) 0.4 - 0.9 0.6 - 1.1 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5
Specific Surface Area (m2/g) 0.15 0.35 0.6 - 0.11 0.2 - 0.5 0.3 - 0.7 0.3 - 0.7 0.3 - 0.7 0.5 - 0.9
Particle Size Distribution d50 (µm) ≈70 7 - 10 ≈80 12 - 28 10 - 20 6 - 10 6 - 8
Particle Size Distribution d90 (µm) ≈120 15 - 30 ≈200 70 - 100 50 - 80 10 - 60 10 - 20
Primary Crystal Size (µm) ≈15 ≈7 ≈6 ≈6 ≈6 ≈6 ≈6
Oil Absorption (ml/100g) ≈60 ≈18 ≈43 ≈30 ≈25 ≈20 ≈20
Cutting Effect 9 8 9 8 8 7 7
Polishing Effect 1 3 1 2 3 3 3

 

  MDS MDS-6 MZS MZS-12 MZS-3 MPS
Al2O3 (%) ≈99.8 ≈99.8 ≈99.7 ≈99.8 ≈99.9 ≈99.3
Na2O (%) <0.1 <0.1 ≤0.1 ≤0.1 ≤0.1 ≤0.1
Specific Surface Area (m2/g) 0.3 - 0.6 0.5 - 1.2 0.7 - 1.3 0.6 - 1.5 0.8 - 1.8 3 - 5
Particle Size Distribution d50 (µm) ≈70 4 - 6 ≈70 7 - 15 2.5 - 5 ≈70
Particle Size Distribution d90 (µm) ≈120 9 - 15 ≈120 ≈70 7 - 12 ≈120
Primary Crystal Size (µm) ≈4 ≈4 ≈2.5 ≈2.5 ≈2.5 ≈1
Oil Absorption (ml/100g) ≈60 ≈30 ≈60 ≈30 ≈25 ≈60
Cutting Effect 7 6 7 5 4 3
Polishing Effect 3 4 3 5 6 7

 

  PN-6 PN-202 PN-505 PN-6(12) PS-6 PS-6(12) PC12-2
Al2O3 (%) ≈99.5 ≈99.6 ≈99.8 ≈99.9 ≈99.8 ≈99.8 ≈95
Na2O (%) ≤0.5 ≤0.5 0.2 - 0.4 ≤0.2 ≤0.12 - ≤0.3
Specific Surface Area (m2/g) 4 - 14 8 - 15 8 - 15 8 - 15 4 - 5.5 8 - 15 5
Particle Size Distribution d50 (µm) ≈80 2 - 4 1.5 - 3 ≈30 ≈30 ≈25 1.5 - 2.5
Particle Size Distribution d90 (µm) ≈220 18 - 30 7 - 14 ≈50 ≈50 ≈30 ≈25
Primary Crystal Size (µm) ≈1 ≈1 ≈1 ≈1 ≈0.5 ≈0.5 ≈0.5
Oil Absorption (ml/100g) ≈50 ≈30 ≈30 ≈45 65 - 70 65 - 70 ≈35
Cutting Effect 3 2 1 3 2 2 2
Polishing Effect 8 9 9 9 9 9 10

 

Very Hard Hard Intermediate Soft Very Soft