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Sewage Treatment Ferrous Sulfate

Sewage Treatment Ferrous Sulfate

Sewage treatment Green vitriol It is the blue-green monoclinic crystal or particle. It has no odor; it will be weathered in the dry air and it will be oxidized in the moist air and turn into the brown ferric subsulfate, and it will become tetrahydrate and monohydrate at 56.6 Celsius degree and...

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Sewage treatment Green vitriol

It is the blue-green monoclinic crystal or particle. It has no odor; it will be weathered in the dry air and it will be oxidized in the moist air and turn into the brown ferric subsulfate, and it will become tetrahydrate and monohydrate at 56.6 Celsius degree and 65 Celsius degree. It is soluble in water and nearly not soluble in alcohol. Its water solution will be oxidized slowly in the air and it will be rapidly oxidized under higher temperature. When alkaline is added or it is exposed in light, the oxidization will speed up. Its relative density is (d15) 1.897. It has irritation. The waterless green vitriol shows white powder, when it contains crystalized water, it shows the light green crystal. When it is dissolved in water, the solution will be light green. Green vitriol can be used as the reagent for chromatography analysis, as well as analyzing and measuring platinum, selenium, nitrite and nitrate in dropping method. Green vitriol can also be used as reducing agent and to manufacture ferrite, pure water, polymer catalyst, and it can also be used in photography.


Name

English name: iron(2+) sulfate (anhydrous)

Other names: Sulfuric acid, iron(2+) salt (1:1); iron(II) sulfate; sulfuric acid iron(2+) salt (1:1); ferrous sulfate; iron(2+) sulfate[1] ;

Physical features:

Outlook and character: light blue-green monocline cystal

Melting point: 64 Celsius degree (three crystalized water are lost)

Relative density (water=1): 1.897 (15 Celsius degree)

Molecule formula and molecule weight: FeSO4·7H2O(278.03) FeSO4(152);

Structural formula:

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Solubility: be soluble in water, glycerol; not soluble in alcohol [2]

Boiling point: 330ºC at 760 mmHg

Storage conditions: it should be stored in the dry place with low temperature and good ventilation, and it should be stored separating from the raw materials of food [1].


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