Next, the second stage kicks in, and its five J-2 oxygen/hydrogen engines take the ship another 77 miles in six minutes. Then the third stage engine pushes the craft to the 17,500 mph required to escape Earth's gravitational pull and get into orbit.
Industrially, ferrous sulfate is mainly used as a precursor to other iron compounds. It is a reducing agent, and as such is useful for the reduction of chromate in cement to less toxic Cr(III) compounds. Historically ferrous sulfate was used in the textile industry for centuries as a dye fixative.
By now, the significant difference is obvious; iron is a chemical element, whilst ferrous sulfate is a chemical compound made up of a number of different minerals. Although they differ so much in structure, they both serve an important purpose when it comes to maintaining a personâs wellbeing.