Ferrous sulfate #CAS7720-78-7

Ferrous sulfate #CAS7720-78-7

Ferrous sulfate, also known as Ferrous sulphate or green vitriol, is a sulphate of ferrous iron with the chemical formula FeSO₄. It appears as a dull blue-green monoclinic crystalline powder or granules. Odourless, it possesses a salty, astringent taste. It deliquesces in dry air and readily oxidises to form brownish-yellow basic ferric sulphate in humid conditions. A 10% aqueous solution exhibits acidity towards litmus (pH approximately 3.7). Upon heating to 70–73°C, it loses three molecules of water; at 80–123°C, it loses six molecules of water; and above 156°C, it transforms into basic ferric sulphate. It is readily soluble in water (1g/1.5ml at 25°C or 1g/0.5ml in boiling water) but insoluble in ethanol.

Application Of Ferrous sulfate

Nutritional supplements (iron enhancer); color former of fruit and vegetable; for example, the salted product used together with dried alum in eggplant can form stable complex salt with its pigment to prevent the discoloration caused by organic acids. However, it should be noted, for example, it will turn into black ink upon excess amount of iron. When the amount of alum is high, the meat of the pickled eggplant meat will become excessively solid. Formulation example: long eggplant 300 kg; edible salt 40kg; ferrous sulfate 100g; dried alum 500g. It can still be used as the color forming agent of black beans, sugar boiled beans and kelp. Food containing tannins, in order to avoid of causing blackening, should not be used. It can also be used for sterilization, deodorization and very weakly bactericidal.

Legumes contained cryptochromic pigment is colorless upon reduction state while being oxidized into black upon oxidation in alkaline condition. Taking advantage of the reduction property of ferrous sulfate can achieve the purpose of color protection with the usage amount of 0.02% to 0.03%.

If is used for the manufacturing of iron salt, iron oxide pigments, mordant, purifying agent, preservatives, disinfectants and medicine for anti-anemia drugs

Ferrous Sulfate is a nutrient and dietary supplement that is a source of iron. it is a white to grayish odorless powder. ferrous sulfate hep- tahydrate contains approximately 20% iron, while ferrous sulfate dried contains approximately 32% iron. it dissolves slowly in water and has high bioavailability. it can cause discoloration and rancidity. it is used for fortification of baking mixes. in the encapsulated form it does not react with lipids in cereal flours. it is used in infant foods, cereals, and pasta products.Ferrous sulfate (FeSO4) is also known as iron sulfate or iron vitriol. It is used in the production of various chemicals, such as sulfur dioxide and sulfuric acid.

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