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.
Ferrous sulfate may be only one part of a treatment program that also includes a special diet. You should follow the diet plan your doctor advises. Pregnancy and Ferrous Sulfate. This supplement should only be used during pregnancy if it is clearly needed. You should talk to your doctor about the risks of taking ferrous sulfate during pregnancy. Ferrous sulfate passes into breast milk. You should talk to your doctor before taking this medicine while breastfeeding.