Purity: & ge; 99. 99%
Diameter of particle d50(pμm) 0. 5-2
Loose Density(g/cm3): 0. 3-0. 6
Than the surface area (m2/g): 5-12

Element:
Si (ppm)& le; 8
Na (ppm)& le; 6
Mg (ppm)& le; 4
Ca (ppm)& le; 2
Cr (ppm)& le; 3
Fe (ppm)& le; 3

Packing: 20kg/carton

It can be used as rare earth tri-band phosphor, luminescent phosphor with long afterglow, sub-micro or nano-meter grade lapping material, catalyst and support, inorganic membrane, alumina ceramic soleplate, filler and bending agent, high purity/high strength alumina ceramics, transparent alumina ceramic tube for pressure sodium vapor lamps, aluminium nitride, far infrared material and bioceramics, etc.