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China Clay

Product Code : 15

Product Specification

China Clay

China clay is also known as hydrated aluminium silicate. China clay is an important raw material of ceramic industry. In consists of Partly Crystalline and party amorphous minerals of Kaoline group. So it can also be called as Kaolinite is derived from Kaoline Which is a corruption of the Chinese Kauling mealig high ridge. In short china clay is the deposites of kaoline produced by hydrothermal decomposition or weathering of feldspar.The chemical composition of china clay is SiO2( 45% to 48%), Al2O3( 33% to 39%), Fe2O3(Below 1.5%), TiO2(Below 0.5%), CaO( Below 1%), MgO(Below 0.5% ).

Technical Specification:

Chemical composition of CHINA CLAY

SiO2: 45% to 48%
Al2O3: 33% to 39%
Fe2O3: Below 1.5%
TiO2: Below 0.5%
CaO: Below 1%
MgO: Below 0.5%
LOI: 12% to 14%
Acid Insoluble: 97.5%
PH: 8.1
B.D.: 0.5 to 0.8 gm/cc
Oil absorption: 39.5 ml/100gm
Whiteness: 78% to 90% Variation of the specifications stated due to natural raw materials and environment conditions are possible. though they have no influence on the application properties described.