" alt="Zinc Sulfate Heptahydrate 99%" /> Zinc Sulfate Heptahydrate 99% art: ch7446-20-0 Formula H14O11SZn Molar mass 287.541 g/mol CAS number 7446-20-0 $20.00 Buy Choose an option 100g Zinc Sulfate Heptahydrate 99% 500g Zinc Sulfate Heptahydrate 99% 2.5KG Zinc Sulfate Heptahydrate 99%