JIANGXI  KETE  FINE  POWDER   HANDLING  CO., LTD.
Product detail

Ordinary wollastonite powder

 

Brief

Ordinary wollastonite powder(CaSiO3

Raw materials: natural three - in - crystal system of silica fume (threadiness, needle)

Characteristics: non-toxic, pollution-free, high melting point, corrosion resistance, aging resistance, refractive index, with good fill strong, sealing, heat-resisting and wear-resisting property and stability etc..

3.Process:

 Product specification model, index items

Specification model  

  Test item

200M

325M

400M

600M

SiO2

%≤

47-49

47-49

47-49

47-49

CaO

%≥

46-48

46-48

46-48

46-48

Fe2O3

%≤

0.20

0.20

0.20

0.20

MgO

%≤

0.25

0.25

0.25

0.25

Al2O3

%≤

0.25

0.25

0.25

0.25

PH Value

PH

7-9

7-9

7-9

7-9

Whiteness

%≥

85

85

87±1

87±1

True Specific Gravity

(t/m3)

2.7-2.8

2.7-2.8

2.7-2.8

2.7-2.8

Postulate Specific Gravity

(t/m3)

0.6-1.4

0.6-1.4

0.6-1.4

0.6-1.4

Moh's Hardness

 

4.5-5.5

4.5-5.5

4.5-5.5

4.5-5.5

Refraction Coefficient

 

1.63

1.63

1.63

1.63

Melting Point

1540

1540

1540

1540

Density

 

2.75

2.75

2.75

2.75

Coefficient of Thermal Expansion

 

6.5*10-6

6.5*10-6

6.5*10-6

6.5*10-6

Length Density

 

20-35:1

20-35:1

20-30:1

20-30:1

Loose Density

(g/cm2)

0.1-0.15

0.1-0.15

0.1-0.15

0.2-0.25

Compacted Density

(g/cm2)

0.8-0.85

0.8-0.85

0.8-0.85

0.8-0.85

Loss on lgnition

%

3-5

3-5

3-5

3-5

Moisture Content

%≤

0.3

0.3

0.3

0.3

45μm Sieve Test

(20μm)≤

0.001

0.001

0.001

0.001

Particle Size

D97(μm)≤

100

58

48

30

Product Shape

 

threadiness

threadiness

threadiness

threadiness

Appearance

 

White powder

White powder

White powder

White powder

Note: according to customer demand, we can produce Active Heavy calcium carbonate with different Whiteness, purity or fineness

Uses

Widely used in composite materials (electronic components, packaging materials, high performance rubber products, automobile shell and mold), papermaking, ceramics, building materials, rubber, plastics, paints, coatings, chemicals, electric welding rod, nylon, metallurgical protective slag as well as the replacement of asbestos and other fields.

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