Ferrous Sulfate (7720-78-7)
1. Basic Information
1. Chemical Name: Ferrous Sulfate
2. Chinese Aliases: Ferrous Sulfate; Heptahydrate Ferrous Sulfate; Green Vitriol; Black Vitriol
3. English Name: Ferrous Sulfate
4. Molecular Formula: FeSO4
5. Molecular Weight: 151.91
6. CAS Number: 7720-78-7
7. EINECS Number: 231-753-5
8. Appearance: Light green or light yellow-green crystals
2. Technical Parameters
Item
Standard
Class I
Class II
Mass fraction of Ferrous Sulfate FeSO4·7H2O w1/%≥
90.0
85.0
Mass fraction of Titanium Dioxide (TiO2) w2/%≤
0.75
1.00
Mass fraction of insoluble substances w3/%≤
0.50
0.50
Mass fraction of free acid (as H2SO4) w4/%≤
1.00
2.00
Mass fraction of Arsenic (As) w5/%≤
0.0002
0.001
Mass fraction of Lead (Pb) w6/%≤
0.0004
0.002
Mass fraction of Cadmium (Cd) w7/%≤
0.0001
0.0005
Mass fraction of Mercury (Hg) w8/%≤
0.00002
0.0001
Mass fraction of Chromium (Cr) w9/%≤
0.001
0.005
Class I of this product, when used as a raw material for producing water treatment agents for drinking water, should comply with relevant laws and regulations.
(The above parameters are for reference only. Please refer to the factory inspection sheet for the actual values.)
3. Packaging Specifications
1. 25 kg bag
2. Ton bag