Calcium carbonate(caco3)> 98.5 % Iron oxide (fe2o3) < 0.02 % Aluminum oxide (al2o3) < 0.02 % Magnesium oxide (mgo) < 0.02 % Silicon oxide ( sio2) < 0.03 % Whiteness 98 % min Brightness 96 % min Moisture 0.2 % max Specific gravity 2.7g/cm3 Oil absorption 34.19 g/100g Ph 8 – 9 Specific surface area 5.40 m2/g Tapped density 1.20 g/cm3 D50 2.0 ± 0.2 µm D97 10 ± 2 µm In pp/pe of 25 kgs net each/ in kraft paper of 25 kgs net each/ in jumbo bag of 1, 100 kgs net each.