Crystal

BN (%)

B2O3 (%)

C (%)

Total 
Oxygen (%)

Si, Al, Ca
(%)

Cu, K, Fe, Na, 
Ni, Cr (%)

D50

Crystal Size

BET 
(m2/g)

Tap Density
(g/cm3)

Hexagonal

99.3

＜0.2

0.05

<0.5

<10ppm
each

<10ppm
each

14-16μm

＜12μm

6-15

0.3-0.5