... 4.Shipment in time 5.Producer Specification : Oxalic Acid Content99.6%Min99.4%Min99.0%MinSulphate0.08%Max0 ... %Max0.10%Max0.20%MaxUseage : Pharmaceutical industry,precipitating agent of rare earth elements,bleaching,metal and marble polish,cleanser ... industry,printing and dyeing catalytic agent,anti-shrinkage finishing of paper,manufacturing oxalates. industrial grade Oxalic Acid 99.6% china manufacture ...