Ferrous sulfate, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Chemical Name: Ferrous sulfate
- CAS No.: 7720-78-7
- Molecular Formula: FeO4S
- Molecular weight: 151.91
- Appearance: white orthorhombic crystals
- Sample: Available
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Description of Ferrous sulfate
Iron(II) sulfate (British English: iron(II) sulphate) or Ferrous sulfate are salts with the formula FeSO4.xH2O. These compounds exist most commonly as the heptahydrate (x = 7) but are known for several values of x. The hydrated form is used medically to treat iron deficiency, and also for industrial applications. Known since ancient times as copperas and as green vitriol, the blue-green heptahydrate is the most common form of this material. All iron sulfates dissolve in water to give the same aquo complex [Fe(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic.
Basic Info of Ferrous sulfate
Basic Info
Numbering system
Properties
Safety Info
Basic Info
Chemical Name | iron(2+) sulfate (anhydrous) |
Synonyms | Ferrous sulfate;iron(2+) sulfate;iron(II) sulfate;Sulfuric acid, iron(2+) salt (1:1);ferrous sulphate;Expand |
CAS No. | 7720-78-7 |
Molecular Formula | FeH2O4S |
Molecular Weight | 153.92300 |
PSA | 82.98000 |
LogP | 0.42550 |
Numbering system
UNII | 2IDP3X9OUD |
Properties
Density | 1.898 |
Boiling Point | 330ºC at 760 mmHg |
Melting Point | 64ºC |
Safety Info
Safety Statements | S45 |
HS Code | 2833291000 |
Risk Statements | R25 |
What is Ferrous sulfate?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Ferrous sulfate which has developed particularly rapidly in recent years. Do you know about Ferrous sulfate?
The official answer: Ferrous sulfate is an inorganic substance with the chemical formula FeSO4, with the appearance of white powder without odor. Its crystalline hydrate is heptahydrate at room temperature, commonly known as “green alum”, light green crystal, weathered in dry air, oxidized to brown basic iron sulfate in moist air surface, become tetrahydrate at 56.6℃, become monohydrate at 65℃. Ferrous sulfate is soluble in water and almost insoluble in ethanol. Its aqueous solution oxidizes slowly in the air when cold, and oxidizes more quickly when hot. The addition of alkali or dew light can accelerate its oxidation. Relative density (d15) 1.897. It is irritating. Ferrous sulfate is used as a reagent for chromatographic analysis, spot analysis for the determination of platinum, selenium, nitrite, and nitrate. Ferrous sulfate can also be used as a reducing agent, manufacturing ferrite, water purification, polymerization catalyst, photographic plate making, etc.
What’s the application of Ferrous sulfate?
Ferrous sulfate is an inorganic metal salt substance, which can be used as a nutritional supplement (iron fortification agent); fruit and vegetable coloring agent; also used for making iron salt, iron oxide pigment, mordant, water purification agent, antiseptic, disinfectant, etc. It is used as an anti-anemia drug in medicine.
Dark blue-green monoclinic crystalline powder or granule. Odorless, with a salty astringent odor. Weathering in dry air. Easily oxidized to brownish-yellow basic iron sulfate in the humid air. 10% aqueous solution is acidic to litmus (Ph value about 3.7). It loses 3 molecules of water when heated to 70-73°C, loses 6 molecules of water to 80-123°C, and turns into basic ferric sulfate above 156°C. Soluble in water (1g/1.5ml, 25℃ or 1g/0.5ml boiling water). Insoluble in ethanol.
Nutritional supplement (iron fortifier); coloring agent for fruits and vegetables. If used with burnt alum in the pickled products of eggplant, it can form a stable complex salt with its pigment to prevent discoloration caused by organic acid. However, it should be noted that the amount of iron will become black ink color, alum dosage is too much flesh of pickled eggplant solid. Example of recipe: 300kg of long eggplant, 40kg of salt, 100g of ferrous sulfate, 500g of burnt alum. can also be used as a coloring agent for black beans, sugar-boiled fava beans, kelp, etc. It should not be used for food containing tannin to avoid blackening. It can also be used for sterilization and deodorization, but the sterilization power is very weak. Beans contained in the hidden base pigment in the reduced state colorless, alkaline oxidation becomes black, the use of reducing ferrous sulfate can achieve the purpose of color protection, the amount of 0.02% to 0.03%.
Conclusion
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