Ferrous sulfate heptahydrate raw Powder CAS 7782-63-0

CAS:7782-63-0

MF:FeH14O11S

MW:278.01

EINECS:616-510-7

Specification​: 99% min Ferrous sulfate heptahydrate

Sample:Ferrous sulfate heptahydrate Powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance:Light Blue

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Ferrous sulfate heptahydrate Usage and Synthesis.

Ferrous Sulfate: Alias: ferrous iron, ferrous sulfate heptahydrate, green alum, drying type ferrous sulfate, the use can be used as electroplating plant as a reducing agent, industrial wastewater flocculant, printing and dyeing plant to do the precipitant, as raw materials for the iron-red plant, as raw materials for pesticide factories, as raw materials for fertilizer factories, ferrous sulfate fertilizer in flowers and so on.

Widely used in printing and dyeing, papermaking, sewage, industrial wastewater flocculation clarification and decolorization, ferrous sulfate can also be used to deal with chromium-containing wastewater and cadmium-containing wastewater. Ferrous sulfate can also be used to treat chromium-containing wastewater and cadmium-containing wastewater, such as high alkalinity, high chroma wastewater treatment, which can reduce the large amount of inputs of neutralizing acid.

Ferrous sulfate has many functions, it can be used as plant fertilizer, adjust the acidity and alkalinity of soil, increase the iron content suddenly, etc. It is used more in agricultural production and daily flower raising.

Ferrous sulfate is also the raw material for industrial production of iron salts, and can also be used for industrial wastewater treatment and sewage treatment in many industries, in the treatment of urban sewage, ferrous sulfate has a strong effect of phosphorus removal and so on. High-quality ferrous sulfate is also used in food additives and pharmaceutical production, can improve anemia, but need to have medical advice to take.

Uses of Ferrous sulfate heptahydrate.

It can be used as a pesticide in agriculture to prevent and control the black spike disease of wheat, scab disease of apple and pear, and rot disease of fruit trees; it can also be used as a fertilizer to remove the moss and lichen from the trunk of trees.

It is the raw material for manufacturing magnetic iron oxide, iron oxide red and iron blue inorganic pigment, iron catalyst and ferric sulfate.

In medicine, it is used as local astringent and blood tonic. It is also used as a reagent for chromatographic analysis. Edible grade is used as nutritional supplements, such as iron fortifier, fruit and vegetable coloring agent. Feed grade ferrous sulfate is used as iron supplement in feed processing.

Used as food iron fortifier. China's regulations can be used in sandwich sugar and salt, the use of 3000-6000mg/kg; in high iron cereals and their products (daily limit of 50g of such food) for 860-960mg/kg; in dairy products and baby food for 300-500mg/kg; in cereals and their products for 120-140mg/kg; in beverages for 50-100mg /kg in beverages.

Usage of Ferrous sulfate heptahydrate.

Ferrous sulfate is prepared into 5%-10% aqueous solution and then added into the raw water, the PH value of the raw water is adjusted to 9-11 with lime, the effect is more ideal. Advantages of ferrous sulfate heptahydrate: cheap, good decolorization effect, flocculation alum flower, settling.

Under acidic condition, add reducing agent 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 the pH value, so as to make it generate trivalent chromium hydroxide precipitate from the wastewater separation.

Product Method of Ferrous sulfate heptahydrate.

(1) Production of titanium dioxide by-product method. When ilmenite is decomposed with sulfuric acid to make titanium dioxide, ferrous sulfate and iron sulfate are generated, and the trivalent iron is reduced to divalent iron with iron wire. The by-product ferrous sulfate can be obtained by freeze crystallization.

(2) sulfuric acid method. Dissolve the iron filings in a mixture of dilute sulfuric acid and mother liquor, control the reaction temperature below 80 ℃, otherwise ferrous sulfate monohydrate precipitation will be precipitated. The slightly acidic ferrous sulfate solution generated by the reaction is clarified to remove impurities, then cooled and centrifuged to obtain light green ferrous sulfate.