Name: kaolin
Molecular formula: Al2O3.2SiO2.2H2O
Molecular weight: 258.16 (by the 1979 international atomic scale)
C A S: 1332-58-7
EINECS number: 265-064-6
H.S. Code: 2507001000
Hebei Chuangsen has been supplied foundry kaolin and mullite sand and powder for very long time and enjoy very good feedback from our customers. Our material have high Al2O3 content, low Fe2O3 content, low expansion coefficient, high refractoriness, good thermal and chemical stability and other advantage. The dry and wet strength and high temperature strength of the shell made of it is very ideal. It have very good collapsibility of the shell made by our material also. The casting items are easy to be unshelled, less deformation, less shrinkage, smooth surface and high rate of finished products. It can be applied in to precision casting of carbon steel, stainless steel, heat-resistant steel etc. and also for non-ferrous casting such as Aluminum, Titanium and alloy.
CS Kaolin Physical and Chemical Specification
Properties | Spec. | Test results for reference |
Refractoriness, ºC | ≥1790 | 1790 |
Bulk Density, g/cm3 | ≥2.48 | 2.48 |
L.O.I (%) | ≤0.25 | 0.20 |
Mullite Phase (%) | 55-65 | 58 |
Mohs Hardness | 2-3 | 3 |
Fines in sands,% | ≤0.3 | 0.01 |
PH Value | 6-8 | 6.5 |
Chemicals |
|
|
Al2O3,% | 46-48 | 46.62 |
SiO2,% | 50-52 | 50.81 |
Fe2O3.% | ≤1.2 | 0.89 |
TiO2,% | ≤0.7 | 0.60 |
CaO+MgO % | ≤0.5 | 0.38 |
K2O+Na2O,% | ≤0.5 | 0.38 |
Size Available | 10-16mesh, 16-30mesh,30-60mesh, 200mesh,270mesh,325mesh 800 mesh,1250 mesh,2000mesh,4000 mesh Or follow customers' requirement | |
Kaolin application:
Suitable for high-grade latex paint, paint, paint, ink, rubber, plastic, wire and cable, etc..
1 paper, paint can replace some of the expensive titanium dioxide.
2 paint, water-based latex paint.
3 rubber and special cable reinforcing agent, industrial plastic functional filler, ink, food, medicine, cosmetic packing.
4 advanced ceramics and specialty ceramics.
