C2O4Na2 M.W. 134.0
ASSAY ................................. min 99.9%
pH(3% AQUEOUS SOLUTION) ............... 7.5-8.5
LOSS ON DRYING(C) ..................... max 0.01%
CHLORIDE(Cl) .......................... max 0.002%
SULPHATE(SO4) ......................... max 0.002%
IRON(Fe) .............................. max 0.001%
HEAVY METALS(Pb) ...................... max 0.0005%
COPPER(Cu) ............................ max 0.0005%
NITROGEN COMPOUNDS(N) ................. max 0.001%