ferrous sulfate light green color
green vitriol
ferrous sulfate in water treatment
agriculture fertilizer

Blue green monocline crystallization or particles. No odor. In dry air weathering. In moist air, surface oxidized to brown basic iron sulfate. At 56.6 degrees C became the four hydrate, at 65 degrees C became a hydrate. Soluble in water, almost insoluble in ethanol. The water solution of cold in the air in the heat when the slow oxidative, rapid oxidation. Adding alkali or exposure can accelerate the oxidation. Relative density ( D15) in 1.897. Irritant. Anhydrous ferrous sulfate is a white powder, water of crystallization is light green crystal, crystal, commonly known as " green ", soluble in aqueous solution with light green. For chromatography reagents. Drop analysis determination of platinum, selenium, nitrite and nitrate. The reducing agent. Manufacturing ferrite. Water purification. Polymerization catalyst. Photographic plate.