"ferrous sulfate." YourDictionary, n.d. Web. 20 October 2018. <http://www.yourdictionary.com/ferrous-sulfate>.
ferrous sulfate. (n.d.). Retrieved October 20th, 2018, from http://www.yourdictionary.com/ferrous-sulfate
A white to blue-green crystalline compound, FeSO4, occurring in nature as various hydrate minerals such as copperas, and used as a pigment, fertilizer, and feed additive, in sewage and water treatment, and as a medicine in the treatment of iron deficiency.