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Ferrous Sulfate raw Powder CAS 7720-78-7
Product Overview:
Ferrous sulfate (green alum) molecular formula FeSO4-7H₂O an inorganic compound, anhydrous ferrous sulfate is a white powder, soluble in water, the aqueous solution is a light green color, and commonly its heptahydrate (green alum). It is mainly used for water purification, photographic plate making and treatment of iron deficiency anemia. Ferrous sulfate can cause pollution to water bodies, irritation to the human respiratory system and digestive system, overdose can lead to life-threatening.
Ferrous Sulfate raw Powder CAS 7720-78-7 Attributes
CAS:7720-78-7
MF:FeO4S
MW:151.91
EINECS:231-753-5
Specification: 99% min Ferrous Sulfate
Sample:Ferrous Sulfate Powder
Packaging:1kg/bag, 25kg/drum
Brand: Henrikang
Appearance:White
Storage: Cool Dry Place
Shelf Life: 2 Years
Test Method: HPLC
Ferrous Sulfate raw Powder CAS 7720-78-7 Details
Ferrous Sulfate Usage and Synthesis.
Ferrous sulfate is an inorganic metal salt substance, which can be used as nutritional supplement (iron fortifier); fruit and vegetable coloring agent; it can also be used in the production of iron salts, iron oxide pigments, mordant, water purification agent, preservative, disinfectant and so on, and as anti-anemia drug in medicine.
Uses of Ferrous Sulfate.
Nutritional supplement (iron fortifier); fruit and vegetable coloring agent. If it is used with burnt alum in pickled eggplant, it can form stable complex salt with its pigment to prevent discoloration caused by organic acid.
However, it should be noted that if the amount of iron is too much, it will become black ink color, and if the amount of alum is too much, the flesh of pickled eggplant will be too solid. Formula example: 300kg of eggplant, salt 40kg, ferrous sulfate 100g, burning alum 500g. can also be used as black beans, sugar boiled broad beans, kelp and other coloring agents.
Containing more tannin food, in order to avoid causing black change, should not be used. Can also be used for sterilization, deodorization, but the bactericidal power is very weak. The cryptochrome pigment contained in beans is colorless in the reduced state, and it becomes black when oxidized under alkaline, and the use of ferrous sulfate can achieve the purpose of color protection by using the reducing property of ferrous sulfate, the dosage of which is 0.02%~0.03%.
It is used in the production of iron salt, iron oxide pigment, mordant, water purifying agent, antiseptic, disinfectant, etc. It is also used as anti-anemia drug in medicine. Dried product of ferrous sulfate heptahydrate.
Characteristic of Ferrous Sulfate.
Dull blue-green monoclinic crystalline powder or granules. Odorless, with a salty astringent taste. Weathering in dry air. Easily oxidized to brownish-yellow alkaline iron sulfate in humid air. 10% aqueous solution is acidic to litmus (Ph value about 3.7).
Heating to 70 ~ 73 ° C to lose 3 molecules of water, to 80 ~ 123 ° C to lose 6 molecules of water, to 156 ° C or more converted to alkaline iron sulfate. Freely soluble in water (1g/1.5ml, 25℃ or 1g/0.5ml boiling water). Insoluble in ethanol.
Product Method of Ferrous Sulfate.