粒径d97，λ�/span>m，≤

4

6

12

20

SiO₂

Al₂O₃

Fe₂O₃

TiO₂

CaO

白度

＇�/span>%（�/span>

PH倻�/span>

折射玆�/span>

吸油倻�/span>

＇�/span>g/100g（�/span>

325�?/span>

筛余野�/span>

＇�/span>%（�/span>

水份

＇�/span>%（�/span>

比重

铄�/span>Pb

(ppm)

镈�/span>Cd

(ppm)

汝�/span>Hg

(ppm)

�?/span>Cr⁶⁺

(ppm)

52±2

43±2

0.22

0.20

0.30

�?/span>92

6.8

1.62

30

≣�/span>0.02

≣�/span>0.2

2.53

31

ND

ND

ND