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Chemical Name | Ferrous sulfate |
CAS NO | 13463-43-9 |
EINECS NO | 231-753-5 |
Mnolecular formula | FeSO4·H2O |
Molecular weight | 169.92288 |
Classification | Sulfate |
Character | Light blue or light blue - green solid |
Grade | Food grade |
Melting point | 64℃ |
Boiling point | 330 oC at 760 mmHg |
Flash point | meaningless |
Density | 1.89 |
Storage conditions | 2-8℃ |
Hazard class code | R22 |
Safety instructions | 36/37/39 |
Item | Standard | Testing results |
Color | Gray white or pale green | Pass test |
Form | Powder | Pass test |
Content(As FeSO4) | 86.0%-89.0% | 91.0% |
Lead(Pb) | ≤2mg/kg | 1mg/kg |
Hydrargyrum(Hg) | ≤1mg/kg | 0.5mg/kg |
Arsenic(As) | ≤3mg/kg | 1.5mg/kg |
Acid-insoluble | ≤0.05% | 0.035% |
Character:Pale,blue-green crystals or granules that are efflorescent in dry air.In moist air,it oxidizes readily to form a brown-yellow,basic ferric sulfate. It’s soluble in water, insoluble in ethanol.
Usage: It is used as nutrient, fruit and vegetable chromogenic reagent.


Nanjing jiayi Sunway chemical CO.,ltd is located in the ancient capital of the Six Dynasties - Nanjing. The main business to produce and sell food additives,is based on Calcium phosphate, Sodium diacetate,acetate, sulfate, citrate,phosphate, sodium alginate, agar,which integrate research,development,productionandsalesas a whole. Our company invest builtfactories in many cities around China,produceoneselfadvantage,developingmarketingnetwork, focus on corporate image, Keep improvingto win market and customers alike. We haveaprofessionalinternational tradeteam. Establishment of a good cooperative relationship with the United States, Southeast Asia, Japan and Korea.We aim to“Service and sincere in exchange for your trust and support, mutual benefit and create win-win!"
Main products:phosphate salt,acetate salt,sulfate salt,chloride,carbonate salt,hydroxide,citrate salt,sodium EDTA,potassium sorbate and so on.



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