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Calcined kaolin

Classification:

Kaolin series

English Name:

Calcined kaolin

Molecular formula:

Al₂O₃•2SiO₂•2H₂O

Molecular weight:

258.16 (according to the 1979 International Atomic Scale)

CAS No:

1332-58-7

EINECS:

265-064-6

H.S. Encoding:

2507001000


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Product Description

 

calcined kaolin 

English Name:Calcined kaolin

PointsSubtype:  Al2O3·2SiO2·2H2O

PointsSub-quantity:258.16(Press1979 International Atomic Table)

C A S No:1332-58-7    

EINECS号: 265-064-6    

H.S. Encoding:2507001000

Performance:White powder.

Features:Due to the high purity of kaolinite and the extremely low content of harmful elements, not only the treatment process is simple, but also the whiteness of the product is high, and the average whiteness can reach93%, the highest whiteness can reach 97%, used in papermaking can improve the whiteness of coated paper, instead of part of titanium dioxide, can reduce costs. High viscosity concentration, up to 74%, good dispersionThe cover rate is strong,And with natural and synthetic adhesives and other additives in the formulation have good compatibility, can make the coating has good rheological properties, especially suitable.UseIn-machine coating and other requirements of high solid content coating machine use.The abrasion value is low, the material is heated evenly, and local over-burning will never occur. The tested abrasion value is only3.6mg/2000 times.

Use:Suitable for high-grade paint, paint, ink, rubber, plastic, wire and cable, etc.

1. Papermaking, coating can replace some expensive titanium dioxide.
       2. Paint, water-based latex coatings.
      3. Rubber and special cable reinforcing agent, industrial plastic functional filler, ink, food, medicine, cosmetics filler.

4. Advanced porcelain and special ceramic raw materials.

 

 

 

TechnologyIndicators:

Whiteness Whiteness
(%)

Grain Size (-2um)

Abrasion value Abrasion Mg/2000 times

Screen residue of 325 mesh residue(%)

refractive index Refrsctivity

Oil absorption Oil absorbency g/100g

PH value

moisture Moisture

>94

80 2

3.6

<0.005

1.6

65 5

6.7-7.6

<0.5

 

Main chemical indexesTypical chemical properties

SiO2(%)

AL2O3(%)

Fe2O3(%)

TiO2(%)

High (%)

MgO(%)

MnO(%)

52 0.5

45 0.5

<0.5

<1.1

<0.3

<0.2

<0.004

 

Key words:

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