With the help of our rich industry experience, we bring forth and exclusive range of Wollastonite Lump. Our given lump is used primarily in ceramics, friction products. This product is high on demand owing to its low water solubility & low coefficient of liner thermal expansion. Offered product is precisely processed by using advance techniques & available in numerous grades from us.
Low loss on ignition
Low absorption of oil and water
Typical Chemical Properties Percentage :
Calcium Oxide Cao 45.5 - 47.00, Silica Sio2 48 - 49.50, Magnesium Oxide Mgo 0.20, Alumina Al2o3 0.60, Ferric Oxide Fe2o3 0.43, Titanium Dioxide Tio2 Traces, Manganese Oxide Mno 0.29 , Sodium Oxide Na2o 0.02, Potassium Oxide K2o 0.11, Loss on Ignition Loi 1.80 - 4.5.
Typical Physical Properties :
Chemical Formula Casio3, Molecular Weight 116, Form & Habit Bladed Crystal Masses, Crystal System Triclinic (Acicular), Color Brilliant White, Luster Pearly, Brightness 78% To 92%, Refractive Index 1.627, Specific Gravity 2.9, Bulk Density, Loose 0.33 To 0.55 Gm / Ml, Tapped 0.60 To 0.95 Gm / Ml, Hardness 4.5 ( Moh's Scale ), Oil Absorption 40 To 65 (W/W), Ph Of 10% Slurry (Freshly Prepared) 9.0 (At Ambient), Solubility in Water 0.01%, Melting Point 15400c, Co-Efficient Of Expansion 6.5 X 10-6 (E0)-1, Thermal Conductivity 350-600 C 2.16 (Gm/Cal) (Sec-0cx103), Chemical Activity Largely Inert decomposes In Acids, Specific Heat 0.24 Cal / Gm0 C.