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Chemical name：Ferrous Sulfate
Formula：FeSO4.H2O
Molecular weight：169.92
Appearance: Cream powder, anti-caking ,good fluidity
Physical and Chemical indicator：
Item | Indicator | Indicator |
FeSO4.H2O granular ≥ | / | 88.2 |
FeSO4.H2O powder ≥ | 91.3 | / |
Fe2+Content, % ≥ | 30 | 29 |
Total arsenic (subject to As), mg / kg ≤ | 2 | 2 |
Pb (subject to Pb), mg / kg ≤ | 5 | 5 |
Cd(subject to Cd),mg/kg ≤ | 2 | 2 |
Hg(subject to Hg),mg/kg ≤ | 0.2 | 0.2 |
Water content,% ≤ | 3 | 3 |
Fineness (Passing rate), % ≥ | W=180µm≥95 | W=850µm≥95 |
Product Feature
NO.1 Through recrystallization, FeSO4·7H2O is highly purified, with few impurities (Fe≥31%).
NO.2 Content of ferric iron is low, less than 100pm. Compared with Longmang company, its content is 200-300ppm.
No.3 Granularity of 95% is over 80 meshes, and granularity of Longmang iron is uneven.
No.4 Owing to raw materials rinsing, free acid in products is extremely low, less than 0.3%.
Manufacturing
