puirty: 99.6%min 95%min Organic Synthesis,Metallurgy,Light, Printing ,Medicine Industry Golden supplier of it Oxalic Acid:White transparent crystal combining two crystal water,Melting point: 101-102oC, specific gravity: 1.653, easily sublimate at 100oC, easily dissolve in alcohol and water.SpecificationItemsStandardPurity99.6%min.Sulphate SO420.08%max.Heavy metals (Pb+)0.001%max.Ferrous (Fe3+) 0. ...