Item Standard AL2O3 (m/m):% 28-30 27~29 Water- insoluble(m/m):% 1.0 1.5 Ammonium Nitrogen:% 0.09 0.15 Density(20oC)/(g/cm3) 1.12 1.12 Ph Value(1% aqueous solution) 3.5~5.0 3.5~5.0 Basicity % 40~90 40~90 As(m/m):% 0.005 0.005 Pb(m/m):% 0.001 0.003 Cd(m/m):% 0.002 0.002 Hg(m/m):% 0.00001 0.0001 Cr6+ (m/m):% 0.0015 0.005. In two-layer bag with the interior in plastic and the exterior in woven. The weight of each bag is 25kg.
