SiO2

49% MAX

Al2O3

36% MIN

Fe2O3

0.75% MAX

TiO2

0.20% MAX

K2O

1.74% MAX

Na2O

0.40% MAX

SIZE UNDER 2 MICRO

50% MIN

RESIDUE ON 325 MESH

0.05% MAX

WHITENESS

85 MIN

MOISTURE

2.00% MAX

PH

5.0~7.0