White flake crystal powder, a perception of greasy, earthy flavor.
Relative density: two.fifty eight. PH benefit (twenty% drinking water suspension) 3.eight ~ 7.5.
Mohs hardness: 2.
Oil absorption price: 40% ~ fifty%.
Typical particle size: .5 to 1 micron.
MaXiHu (West Lake) Dis.mum cost-free h2o: one.%.
Calcined kaolin is characterized by substantial whiteness, little bulk density, large specific floor spot and pore quantity, great oil absorption, covering and abrasion resistance, substantial insulation and thermal stability.
one, chemical security, kaolin has very good acid solubility.
2. Cation trade capability. The cation exchange potential of kaolin refers to the complete quantity of cations exchanged by kaolin unEPTthe PH benefit of 7, incXiHu (West Lake) Dis.Hu (West Lake) Dis. exchangeable base and exchangeable hydrogen, with the unit of mmol/g, that is, the cation trade potential exchanged for every 1g dry sample is EPTly .03-.05mmol/g.
three. Refractoriness: kaolin is chemically composed of Al2O3 and SiO2, so it has exceptional fireplace resistance with a refractoriness of 1770-1790 ordmC.
actual physical :
Whiteness (% 94 deg plusmn1
Particle dimensions (-10um,%) ge95%
325 mesh residue (%) le0.003%
Oil absorption valu ge62%
PH six.5-7.5
Moisture le0.five%
chemical :
SiC2(%) AL2O3(%) Fe2O3(%) TiO2(%) CaO(%)
52-54 forty four-46 lt0.35 lt0.5 lt0.two
Mgo(%) K2O(%) Ha2O(%) MnO(%)
lt0.2 lt0.05 lt0.1 lt0.004
Employed in coating, paper, plastic, rubber, chemical, drugs, environmental protection, superior refractory and other fields
