CHEMICAL COMPOMENT Calcium - Ca â?¥ 38% Calcium Carbonate - CaCO3 â?¥ 96% Calcium Oxide - CaO â?¥ 54.60% Iron Oxide - Fe2O3 â?¤ 0.04% Magnesium - MgO â?¤ 0.91% Silica - SiO2 â?¤0.23% Aluminium Oxide - Al2O3 â?¤ 0.15% Potassium Oxide - K2O â?¤ 0.05% Sodium Oxide - Na2O Nil Titanium Oxide - TiO2 Nil CUO Nil PBO Nil PHISICAL CHARACTERISTICS Dry Brightness â?¥ 90% Whiteness â?¥ 90% Endosmosis ~ 23g Alcohol Humidity â?¤ 0.3% Content loss on ignition â?¤ 43,8%