Appearance White Crystal Purity 98 % up pH(1% sol'n) 7.6 - 8.4 Iron(Fe) 0.05 % max Sulfate(SO4) 0.05 % max
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Appearance White Crystal Purity 96.0 - 102.0 % up pH(1% sol'n) 7.6 - 8.4 Chloride(Cl) 0.035 % max Sulfate(SO4) 0.04 % max Arsenic(As2O3) 4 ppm max Heavy Metal(Pb) 10 ppm max