PT-
4000

PT-
2500

PT-
1250

PT-
800

PT-
600

PT-
400

PT-
325

Granularity

Surface area

cm²/g

10000

8500

6000

-

-

-

-

Medium Particle diameter（D50）

µm

1.35

1.6

2.05

-

-

-

-

2μm percent content

%

70

60

45

25

-

-

-

Choke point（D100）

µm

6.0

9.0

15.0

24

29

32

35

Physical Property

Real specific fravity

g/㎝³

2.7

2.7

2.7

2.7

2.7

2.7

2.7

Apparent specific gravity

g/㎝³

0.23

0.26

0.30

0.37

0.42

0.46

0.51

Whiteness

%

≥95

≥95

≥95

≥95

≥95

≥95

≥95

Moisture content

%

≤0.4

≤0.4

≤0.4

≤0.4

≤0.4

≤0.4

≤0.4

PHvalue

7.5

7.5

7.5

7.5

7.5

7.5

7.5

Burning loss

%

40.98

40.98

40.98

40.98

40.98

40.98

40.98

DOPvalue

CC/100g

23

23

23

23

23

23

23

Chemical analysis

CaCO₃

%

99.56

99.56

99.56

99.56

99.56

99.56

99.56

SiO₂

%

0.10

0.10

0.10

0.10

0.10

0.10

0.10

Al₂O₃

%

0.10

0.10

0.10

0.10

0.10

0.10

0.10

Fe₂O₃

%

0.003

0.003

0.003

0.003

0.003

0.003

0.003

MgO

%

0.213

0.213

0.213

0.213

0.213

0.213

0.213

P

%

0.009

0.009

0.009

0.009

0.009

0.009

0.009

S

%

0.02

0.02

0.02

0.02

0.02

0.02

0.02