WOLLASTONITE
Items Unit Specification Typical
Chemical Composition  SiO2 % 48--53 52
CaO % 43--46 45
Al2O3 % 0.15--0.3 0.23
Fe2O3 % 0.15--0.3 0.18
TiO2 % ≤0.02 0.016
MgO % 0.50-1.8 0.93
S % ≤0.02 0.01
P % ≤0.007 0.006
LOI (1050℃) %      1.8--3.5
PH ** 9  
Ratio of length to diameter(L/D) **       8--25
Sedimentation value ml/200ml       40--80
Absorption oil value g/100g       20--26
Whiteness %       75--92
Refraction % 1.63  
Bulk Density g/cm3 2.95  
Expansion Coefficient mm/mm℃            6.5x10﹣6
Melting point ℃ 1450  
Size avalible: mesh           80mesh----1250mesh
Application: in Metallurgy, Welding, Ceramics, Paints and Coatings, Friction   
                   materials, Rubber and Plastics, Glass fiber and ceramics fiber ..etc.

 

 
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