Property Value Appearance Gray free flowing powder Iron as fe2o3 0.44% Matter in soluble in water 0.024% Particular size (passing thru 75) 1.46% Relative density (@27/270c) 4.20 Alumina as al2o3 0.48% Insoluble minus silica 94.50% Silica as sio2 4.02% Calcium and magnesium as caco3 52 mg/kg 200 mess passing through 97.5 (api grade) Barites specification. 1 tone and 1.5 tone bags