Ferrous sulfate monohydrate the iron contained in it is a raw material for the synthesis of blood red antibodies in animals, which can be used as a feed grade mineral feed additive for the purpose of rehydration of poultry and livestock, can promote the growth and development of poultry and aquatic animals, and enhance disease resistance. Pigments such as iron oxide red are made with ferrous sulfate monohydrate; Agriculturally used as herbicides, soil amendments and foliar fertilizers, etc., particulate products are very popular fertilizers abroad, which can effectively improve soil and remove mosses and lichens; It can also be used as a pesticide to control the lesions of wheat and fruit trees; It can also be used as an intermediate feedstock in the chemical, electronic, and biochemical industries, among others.