Ultra High Purity and Density Alumina Spheres -1lb

Description

• 1 pound of 99.9% NanoFractalAlumina™.
  
  These hard, high-purity spherical high-density alumina, which is heavier than porcelain, mill faster with negligible silica contamination. Wear and chip resistant. Easy to clean.
  Features:
  Hard, tough, non-porous, chip-resistant surface
• Unaffected by most acids or alkalies
  Non-conductive, non-magnetic, resistant to mechanical and thermal shock
  Available size 4 mm
  Purity greater than 99.8% aluminum oxide Specialty /Dispersion
  Typical Nominal Chemical Composition
  99.9% Al2O3
  Specific Gravity ~3.9g/cc
  Available size: Nominal Size 4mm
  Typical Spread (again only approximate: changes batch to batch)
  Mean 3.76 mm
  Standard Error 0.0225
  Median 3.76 mm
  Mode 3.78 mm
  Porosity: Nil
  Hardness: 9+ Moh
  Color: Ivory
  Charging Factor when used as grinding media: 9lbs/gallon