Ammonium ferrous sulfate,hexahydrate
Molecular formula: (NH4)2Fe(SO4)2·6H2O Molecular weight: 392.14
Alias]: Ammonium ferrous alum, low iron alum, Moore's salt, Mar's salt.
[Properties] Light blue-green crystal or particle, relative density 1.864, sensitive to light, in the air gradually weathering and oxidation. Decomposed at about 100-110°C, soluble in water, insoluble in alcohol.
Testing items | Analytical pure | Chemically pure | Specified grade |
Content /% |
≥99.5 |
≥99.0 |
Customised according to customer requirements
|
pH(5g/L,25℃) |
3.0-5.0 |
3.0-5.0 |
|
soulation /% |
≤0.005 |
≤0.02 |
|
Cl) /% |
≤0.001 |
≤0.005 |
|
PO4) /% |
≤0.000 5 |
≤0.002 |
|
(Mn) /% |
≤0.05 |
- |
|
(Fe) /% |
≤0.01 |
≤0.02 |
|
(Cu) /% |
≤0.002 |
≤0.01 |
|
(Zn) /% |
≤0.003 |
≤0.02 |
|
(Pb) /% |
≤0.002 |
≤0.004 |
|
Ammonia non-precipitate(sulphate)/%/% |
≤0.1 |
≤0.2 |