SPEC:Oxalic Acid Content 99.6% MinSulphate (SO42-) 0.08% MaxHeavy Metals (Pb2+) 0.001% MaxFerrous (Fe3+) 0.0015% MaxChloride (Cl) 0.003% MaxIgnition Residue (850oC)0.08% MaxPacking:25kg/bag,inner plastic and woven outer.25mt/20'FCL.