Kaolin, also called china clay, soft white clay that is an essential ingredient. Kaolin china clay is a hydrated aluminum silicate crystalline mineral formed over many millions of years by the hydrothermal decomposition of granite rocks. Hydrous kaolin is characterized by its fine particle size, plate-like or lamellar particle shape and chemical inertness.
Product Features are :Parameters | China Clay / Kaolin Clay | Calcined Clay |
---|---|---|
SiO2 | 44 to 47% | 48% |
Al2O3 | 35.85 to 39% | 41% |
Loss on Ignition | 12% | Below 1% |
Specific Gravity | 2.7 | 2.41 |
Oil Absorption | 25-32 | 42 |
pH | 6.5 to 7 | 6.5 to 7 |