Na2SeO3.5H2O M.W. 263.02
ASSAY ........................... min.99%
CHLORIDE(Cl) .................... max 0.005%
SULPHATE(SO4) ................... max 0.005%
IRON(Fe) ........................ max 0.001%
HEAVY METALS(Pb) ................ max 0.0005%
COPPER(Cu) ...................... max 0.0005%
NITROGEN COMPOUNDS(N) ........... max 0.005%
POTASSIUM(K) .................... max 0.005%