purity99.6%min for medicine,printing,leather,textile,Metallurgy industry ... at 100oC, easily dissolve in alcohol and water.SpecificationItemsStandardPurity99.6%min.Sulphate SO420.08%max.Heavy metals (Pb+)0 ... Mable, removing rust, bleaching products of leather, wood and aluminium etc.Printing Industry: to be used as Dyeing agent. ... woven bag with inner PE bag 25kgs net. Refined 99.6 %min oxalic acid