White fused alumina
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.
Micropowder/burnishing powder/polishing powder
Size FEPA F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
JIS #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000
Chemical compositions(%) Al2O3 99.20-99.7
Fe2O3 0.04-0.08
Na2O 0.23-0.35
SiO2 0.01-0.05
Main Physical Properties
Mohs hardness :9.0
Bulk density :1.75-1.95g/cm3
Specific gravity 3.95g/cm3