Zinc Sulfate Heptahydrate, ACS, 99+%, 2.5kg por | Jul 23, 2026Manganese (Mn) 3 ppm max. Potassium (K) 0.01% max. Calcium (Ca) 0.005% max. Sodium (Na) 0.05% max. Magnesium (Mg) 0.005% max. Iron (Fe) 0.001% max. Lead (Pb) 0.003% max. Ammonium (NH4) 0.001% max.
