Chemical Composition

Calcium Carbonate as CaCO3-- 98.5%
Magnesium Oxide as MgO -- 0.57%
Silica as SiO2 --- 0.34%
Iron Oxide as Fe2O3 --- 0.02%
Aluminum Oxide as Al2O3 -- 0.27%
Moisture as H2O -- 0.10%
Loss on ignition --- 43.47%

Physical Composition
Color --- 96.47%
Oil Absorption : Acid refined Linseed Oil 21.50 cc/100 g
: DOP 35.00 cc/100 g
pH (10g in 100 cc water) 8.4
Bulk Density : Loose 0.71 g/cc
: Vibrated 0.93 g/cc
Specific Gravity --- 2.68 g/cc

Particle Size
40 micron --- 99.90%
30 micron --- 98.05%
20 micron --- 82.08%
10 micron --- 57.99%