... printing industry, as bleaching agent for textile, substitute for Acetic acid, as coloring mordant for fast pigment dyestuff. 5. In organic ... other aspects: as analysis reagent, raw material of chemicals. Specification:Oxalic Acid Content:99.6% MinSulphate (SO42-)0.08% MaxHeavy Metals (Pb2 ... (Cl-)0.003% MaxIgnition Residue (850ºC)0.08% Max Oxalic Acid99.6%Medicine