氧化鋁,三氧化二鋁,細粉


ai2o3                       >99.4% 
na2o                  <0.3%
fe2o3                       <0.02% 
sio2                        <0.019% 
tio2                         <0.008% 
l.o.i                  <0.3% 
density                ≥ 3.93 g/cm3 
a-al2o3                     >93%
medium particle size      4um 
ultimate crystal size      3-4um
bet                   0.6-0.8 m2/g