Synonyms: green vitriol, iron vitriol, ferrous sulfate, copperas.
Features
1. It is reductive sulfate, easy to be oxidized and turned yellow.
2. It is easy to absorb of moisture, and to cake, but that will not influence its effect.
Application
1. Used for sewage treatment as a coagulant with good decolorizing ability.
2. Used as a precipitating agent to remove sulfide, phosphate, etc.
3. Used for the reduction of Cr6+ in electroplating factory.
4. Used as the nutrients of microbes in biological system for enhancing biological activity.
5. Used as pigment, electronic industrial raw materials, hydrogen sulfide deodorant, soil conditioner, industrial catalysts, etc.
Quality Specification
Executive Standard: GB10531-2006
|
Item |
Index |
|
Drying |
|
|
Appearance |
White or light blue powder |
|
Content (count by FeSO4·7H2O)≥ |
97~100% |
|
Total iron
(mass fraction,%)≥ |
19.7 |
|
Water insoluble
(mass fraction,%)≤ |
0.5 |
|
As(mass fraction%)≤ |
0.0001 |
|
Pb (mass fraction,%)≤ |
0.0005 |
Recommended Brand
Qingyuan, Huixin
How to Use
Please use after making it up to 10% water solution.
Packing, Storage and Transportation
1. Packed in 25 or 50 kg woven bag or ton bag.
2. Stored in dry, cool and ventilate place. Drying type will keep good for 12 months; High quality type will keep good for one month, while qualified type shall be used within one week in summer, or it will turn yellow (it still remains effective).
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