What color ferrous sulfate ferrous sulfate is an inorganic compound of the formula FeSO4, the most commonly used is its blue-green heptahydrate. Anhydrous ferrous sulfate is a white powder, containing water of crystallization is safe pale green crystals of ferrous sulfate, crystal commonly known as "copperas", an aqueous solution of water-soluble light green. The method of preparation of ferrous sulfate solution? First, determine the volume of formulated according to the volume to determine the amount of ferrous sulfate and then said that the required amount of sulfite traded volume of water to the desired formulation can be, for example: 500ml with ferrous sulfate is required: 0.5 * 10000mg / L = 5000mg = 5g say 5 g of ferrous sulfate to a beaker, add a small amount of ferrous sulfate dissolved in water pharmaceutical, transferred to a 500ml volumetric flask, a small amount of water beaker fire ferrous sulfate, and then moved to a volumetric flask washing ferrous sulfate, repeat 3 times. Diluted with water to the mark, shake well. Laboratory Process 1, can react with iron and sulfuric acid prepared directly. Fe + H2SO4 (diluted) = H2 ↑ + FeSO42, can be obtained by reacting with the iron sulphate solution, the reaction equation is: CuSO4 + Fe = FeSO4 + Cu (This type of reaction is a substitution reaction) Toxicological information health hazards: respiratory irritation, inhalation causes coughing and shortness of breath. The eyes, skin and mucous membrane irritant. Coverage cause weakness, abdominal pain, nausea, bloody diarrhea, lung and liver damage, shock, coma, severe cases can be fatal. Environmental hazards: hazard to the environment, can cause pollution of water bodies. Explosion hazard: This product is flammable, irritating. Toxicology data (LD50) :( mouse, oral) 1520mG / kG. Mianchi County ferrous sulfate, Zhengzhou Ronda chemicals, ferrous sulfate prices provided by Zhengzhou Longda Chemical Products Limited. Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to society, and to welcome new and old customers to visit us sincere cooperation for a better future. Zhengzhou Longda Chemical - your trusted friend, Address: High-tech District, Zhengzhou City, Henan Province Chemical Road 99 (Chemical Road and Rita Road intersection 100 meters south west), Contact: Manager Xu.