CHEMICAL ANALYSIS: 
Silica (Si O2)44.4 - 49.8 %
Magnesia (Mg O)31.8 - 32.3 %
Alumina (Al2 O3)7.7 - 11.5 %
Ferric oxide (Fe2 O31.2 - 1.6 %
Lime (Ca O)0.4 - 0.6 %
Titanic anhydride (Ti O2)0.03 - 0.06 %
Phosphoric anhydride (P2 O50.20 - 0.36 %
Sulfuric anhydride0.03 - 0.12 %
Loss in firing (10000
C)
8.1 - 9.4 %
Solubility in water0.03 - 0.06 %
Iron soluble in water0.002 - 0.008 %
Solubility in H C11.4 - 2.1 %
Alkaline carbonate testneutral
Arsenic by Cribier metod0.2 - 0.4 ppm
Culess than 12 ppm
Pb2 ppm
GRANULOMETRY: 
less than 20 /u- 78%
less than 10 /u- 49%
less than 5 /u- 22%
less than 2 /u- 9%
less than 1 /u- 3%

SPECIFIC WEIGHT: Apparent density: 0.6 g/cm3

PACKING: Paper bags 25 kg, 4ply Paper bags 50 lbs, 4 ply