平均粒径(D50)

Average Particle Size

μm,≣�/span>

2.5

4.0

5.5

8.5

**粒径＇�/span>D97（�/span>

Maximu Particle Size

μm

7

10

20

30

325目筛余量

Residue 325 Mesh

%,≣�/span>

Tr

Tr

0.01

0.50

發�/span>�?/span>

Whiteness

%,�?/span>

90

90

89

88

PH

6.5-9.5

吸油野�/span>

Oil Absorption

ml/100g

10~15

9~14

8~14

8~13

毓�/span>里�/span>Density

g/cm³

4.0-4.5

硫酸钠�/span>BaSO₄

%,�?/span>

90.0~98.0

铁含野�/span>Fe₂O₃

%,≣�/span>

0.05

水溶�?/span>

Acid Insolubles

%,≣�/span>

0.3

水份Moistureq

%,≣�/span>

0.3