Ag2SO4 M.W. 311.79
ASSAY ........................ min 99%
pH(0.5% AQUEOUS SOLUTION) .... 5.0-6.0
CHLORIDE(Cl) ................. max 0.01%
IRON(Fe) ..................... max 0.001%
HEAVY METALS(Pb) ............. max 0.0005%
NITRATE(NO3) ................. max 0.001%
POTASSIUM(K) ................. max 0.005%