Tech Data Sheet:
Alumina 1664

Background:
A high purity fine particle sized calcined alumina for refractory or metallurgical applications.

Typical Chemistry, calcined basis:

Al2O3 99.4% 99 min.
Fe2O3 .015%  
Na2O .4-.8%  
CaO .03%  
SiO2 .03% .1% max.

L.O.I.
3 - 8%

Surface area:
15-30 m2/g

Crystalline structure:
normally composed of 50% - 70% alpha alumina

Typical sizing:
95% -325 mesh, median particle size is 4-5 microns.

Packaging:
Bulk blower trucks, supersacks, or 50 lb. Bags on pallets.