Purchase Qty. Reference FOB Price
25-49 Tons US$150.00
50-99 Tons US$130.00
100+ Tons US$100.00
Product Description
Product Description Ferrous sulfate heptahydrate, commonly known as green alum, is an inorganic compound. It is mainly used in the manufacture of iron salt, ink, magnetic iron oxide, water purifying agent, disinfectant, iron catalyst and catalyst; It is used as coal dye, grass tanning agent, ...