China Clay Powder

Mumal Microns are the manufacturers, Exporter and processor of the best quality of china clay powder in the country. China Clay is a Hydrated Aluminum Silicate and Chemically China Clay is known as Aluminum Silicate Al2O3.2SiO2.2H2O. The China Clay is generally soft, earthy, usually white mineral in nature and is produced by the chemical weathering of aluminum silicate minerals like feldspar. In different regions of the world, the China Clay is colored pink-orange-red by iron oxide, giving it a distinct rust hue. Lighter concentrations yield white, yellow or light orange colors. The china clay brings improvement in chemical resistance, electrical properties and reduction in water absorption. China clay does not swell in the water and can withstand high temperature. China clay increases the strength of the material in which it is mixed. It lowers the crack tendency in the finished products, improves shock resistance and surface quality.

The specification of china clay powder

Sio2 42% to 46%
Al2o3 30% to 38%
Fe2o3 Around 1.5%
Tio2 Around 0.5%
Cao Below 1%
Mgo Below 0.5%
LOI 11% to 15%
Acid Insoluble 98%
PH 8.1
B.D. 0.5 gm/cc
Oil absorption 39.8 ml/100gm
Whiteness 75% to 85%