Item

Value

Typical value

Al₂O₃(%)

≥68

69

Fe₂O₃ (%)

≤1.60

1.55

TiO₂(%)

≤3.20

3.10

CaO+MgO (%)

≤0.50

0.40

K₂O+Na₂O

≤0.40

0.30

Bulk density (g/cm3)

≥2.82

2.88

Mulite phase

≥90

94.3