White flake crystal powder, a perception of greasy, earthy taste.
Relative density: 2.58. PH worth (20% drinking water suspension) 3.8 ~ seven.5.
Mohs hardness: 2.
Oil absorption fee: 40% ~ 50%.
Common particle dimension: .5 to one micron.
MaXiHu (West Lake) Dis.mum totally free h2o: one.%.
Calcined kaolin is characterized by large whiteness, modest bulk density, big particular surface area spot and pore volume, great oil absorption, covering and abrasion resistance, large insulation and thermal stability.
1, chemical steadiness, kaolin has very good acid solubility.
two. Cation exchange capacity. The cation exchange capability of kaolin refers to the overall sum of cations exchanged by kaolin unEPTthe PH price of 7, incXiHu (West Lake) Dis.Hu (West Lake) Dis. exchangeable foundation and exchangeable hydrogen, with the unit of mmol/g, that is, the cation trade capability exchanged for every 1g dry sample is EPTly .03-.05mmol/g.
3. Refractoriness: kaolin is chemically composed of Al2O3 and SiO2, so it has exceptional hearth resistance with a refractoriness of 1770-1790 ordmC.
bodily :
Whiteness (% ninety four deg plusmn1
Particle measurement (-10um,%) ge95%
325 mesh residue (%) le0.003%
Oil absorption valu ge62%
PH six.five-seven.five
Humidity le0.5%

chemical :
SiC2(%) AL2O3(%) Fe2O3(%) TiO2(%) CaO(%)
52-54 forty four-46 lt0.35 lt0.five lt0.two
Mgo(%) K2O(%) Ha2O(%) MnO(%)
lt0.two lt0.05 lt0.one lt0.004

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