commodity:poly aluminum chloride appearance:yellow powder Al2O3:28-30%min basicity:40-90% PH(1% WATER SOLUTION):3.5-5.0 Pb : 10ppm max Cr6+ : 5ppm max As : 2ppm max Cd : 2ppm max Hg : 0.1ppm max INSOLUBLE SUBSTANCE(10% Al2O3water solution ):0.5%min (Pb,Cr,As,Cd,Hg content should be according with 10% Al2O3 water solution) pack:25kg/PP bag (20mt/FCL)