Introduction of Ferrous Sulfate Heptahydrate？

Ferrous Sulfate Heptahydrate chemical formula FeSO4, commonly known as ferrous sulfate FeSO4 7H2O containing seven crystal waters, commonly known as green vitriol. Light blue-green monoclinic crystal, density 1.898g/cm3, Chemicalbook 64 ℃ melted in crystal water. Soluble in water, the aqueous solution is acidic. Gradually weathered in the air, and at the same time was oxidized to yellow-brown basic iron salts. At 300°C, all crystal water is lost, and the anhydrous is white powder. Application: ferrous sulfate: alias: ferrous, ferrous sulfate heptahydrate, green vitriol, drying type ferrous sulfate, can be used as reducing agent in electroplating plants, flocculant in industrial wastewater, precipitating agent in printing and dyeing plants, etc. It can be used as raw material for iron red plant, as raw material for pesticide plant, as raw material for chemical fertilizer plant Chemicalbook, fertilization in ferrous sulfate flowers, etc. It is widely used in the flocculation, clarification and decolorization of printing and dyeing, papermaking, domestic sewage, and industrial wastewater. Ferrous sulfate can also be used to treat chromium-containing wastewater and cadmium-containing wastewater. Treatment of high alkalinity and high chroma wastewater can reduce the use of acid for neutralization. substantial investment. Function: Ferrous sulfate has many functions. It can be used as fertilizer for plants, adjust the acidity and alkalinity of soil, increase the sudden iron content, etc. It is widely used in agricultural production and daily flower cultivation. Ferrous sulfate is also a raw material for industrial production of iron salts. It can also be used for chemical treatment of industrial wastewater and sewage treatment in many industries. In the treatment of urban domestic sewage, ferrous sulfate has a strong phosphorus removal effect. High-quality ferrous sulfate is also used in food addition and pharmaceutical production, which can improve anemia, but it needs a doctor's advice to take it. How to use: When ferrous sulfate is used, it is firstly prepared into a 5%-10% aqueous solution and then added to the raw water. The pH value of the raw water is adjusted to 9-11 with lime, and the effect is more ideal. Advantages of ferrous sulfate heptahydrate: low price, good decolorization effect, large flocculation alum, and sedimentation. Under the acidic strip Chemicalbook, add reducing agents such as ferrous sulfate, sodium sulfite, sodium bisulfite, sulfur dioxide, etc., to reduce hexavalent chromium to trivalent chromium, and then add sodium hydroxide, calcium hydroxide, lime, etc. to adjust pH value, so that it generates trivalent chromium hydroxide precipitates and separates them from wastewater.