Yueqing Furong Sewage Treatment Co., Ltd., located in Wenzhou City, produces ferrous sulfate heptahydrate by crystallizing acidic water containing a large amount of ferrous sulfate. This product is mainly used in industries such as paints, inks, powder coatings, rubber, plastics, footwear manufacturing, papermaking, and enamel. The company has a daily production capacity of approximately 3 tons and offers competitive prices. Interested buyers are welcome to contact us by phone. Product Introduction: The ferrous sulfate heptahydrate produced by the company is a bluish-green monoclinic crystal or granular substance, odorless, with a relative density of 1.898 and a melting point of 64°C. It is soluble in water (48.6g/100ml water at 50°C). It decomposes at red heat to form ferric oxide and is corrosive. It weathers in dry air and is easily oxidized by moist air. Its chemical formula is FeSO₄·7H₂O, commonly known as green vitriol, with a content of FeSO₄·7H₂O ≥ 90%. It has a wide range of applications and is a high-quality raw material for producing iron oxide series pigments, Prussian blue (iron blue) pigments, and iron catalysts. It is also an excellent material for manufacturing feed additives, ferrous sulfate monohydrate, fertilizers, pesticides, and soil improvement. Additionally, due to its low cost and ease of use, it is widely used as a purification coagulant for treating industrial wastewater from electroplating, printing, dyeing, and other industries, as well as tap water.