Specification Test Results

• pH-value (10% suspension):
  6.5 - 7.5
• Fe (Iron):
  ≤0.02%
• Pore volume (N₂-isotherm):
  0.74 - 0.84 ml/g
• Specific surface area (according to BET; 5-Pt. measurement):
  480 - 540 m²/g
• Loss on drying (150 °C):
  ≤7.0%
• Particle Size (d10):
  75 - 95 µm
• Particle Size (d50):
  125 - 150 µm
• Particle Size (d90):
  215 - 245 µm