Kaolin powder physical performance

Physical indicators

Product Category

The general level

Refined

Superfine grade

201

501

521

528

551

Appearance of whiteness (%)

Light gray powder

Light gray powder

Light gray powder

Gray particles
90+-1

Gray particles
88+-1

Gray particles
86+-1

325 Mesh sieve margin <(100%)

0.5

0.1

0.1

0.05

0.05

0.1

Average particle size um

5.5

2.5

1.8

0.4

0.8

1.2

The maximum diameter um

30

12

8

4

7

8

Proportion

2.6

2.6

2.6

2.6

2.6

2.6

Water soluble(%) <

0.5

0.5

0.5

0.5

0.5

0.5

water??%?? <

1.5

2.0

2.0

1.5

2.0

2.0

Oil absorption value??ml/100 g )

28

32

40

45

40

38

PH Value

6 ~8.5

6 ~8.5

4~7

6 ~8

6 ~8

5~7

Note: all kinds of indicators can fine-tune according to customer requirements