Other name：Sulfuric acid iron(3+) nonahydrate；FS；Ferric(Ⅲ) Sulfate
CAS No.: 10028-22-5
EINECS No.: 233-072-9
UN No.: 9121
HS No.: 2833299090
Molecular Formula: Fe2(SO4)3·9H2O
Molecular weight：561.88
2. Specifications:
2.1 .Ferric Sulfate industry grade classification:
Ⅰ: water treatment and production of chemical raw materials.
Ⅱ: other industries use.
2.2.Quality standards：Refer to GB 14591-2006
| Item | Index | |
| Ⅰ | Ⅱ | |
| Assay as Fe2(SO4)3·9H2O, wt% | 95.0-115.7 | 95.0-115.7 |
| Iron as Fe, wt%≥ | 19.0-23.0 | 19.0-23.0 |
| Reductive Matters(as Fe2+), wt%≤ | 0.15 | 0.15 |
| pH(1% aqueous solution) | 1.0-2.0 | 1.0-2.0 |
| Arsenic(As) , wt%≤ | 0.0008 | -- |
| Lead (Pb) , wt%≤ | 0.0015 | -- |
| Insoluble Matters, wt%≤ | 0.5 | 0.5 |
4. Uses: Ferric sulfate is a high-efficiency inorganic flocculant, mainly used to purify and treat all kinds of drinking water, industrial water, wastewater and sewage. Moreover, it can be used as catalyst, mainly used in the liquefaction and vaporization.
5. Features
a. Has the same features as inorganic flocculants such as polyferric sulfate, polyaluminum chloride, etc.
b. Low use level and cheap cost;
c. Has stronger effect to remove COD at the slightly acid condition;
d. Seffective to treat the wastewater from oil field and oil extractio
6. Usage and Notice: The usage and notice is same as polyferric sulfate.
7. Storage: Non hazardous chemicals Stored in cool and ventilated, avoid light place.
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