See all High Purity Alumina families


CR1, CR6, CR10, CR15, CR30F, CR125, CRA6 are jet-mill deagglomerated powders. Looking for slurries? Go to CR-S products page.

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Products characteristics

Standard product
(Typical values)
CR1 CR6 CR30F CR125 CRA6
Crystalline phase 100% α 100% α 80% α 100% γ 100% α
Specific Surface Area (m²/g) BET 3 6 26 105 5
PSD d50 (µm)
Laser diffraction
1.0 0.5 0.2 1.0 0.4
Bulk Density (g/cm³) 0.6 0.6 0.30 0.1 0.6
Tapped Density (g/cm³) 0.95 0.8 0.45 0.2 0.8

Particle size distribution of CR range


  • CR1 – Technical Data Sheet
  • CR6 – Technical Data Sheet
  • CR10 – Technical Data Sheet
  • CR30F – Technical Data Sheet
  • CR125 – Technical Data Sheet
  • CRA6 – Technical Data Sheet
  • Safety Data Sheet HPA – Baikowski®

Main applications

Conventional lighting

Conventional lighting

Crystal polishing

Crystal polishing

Ceramic coating

Ceramic coating



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