oxalic acid and its Impurities

Oxalic acid is an organic compound that is used as a mordant in dyeing processes, in cleaning, bleaching and as a banking powder. This dicarboxylic acid is a reducing agent and its conjugate base oxalate is a chelating agent for metal cation.Reference standards of Oxalic Acid API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.