Ammonium ferrous sulfate hexahydrate
【Another name】Ferrous ammonium alum; Low iron vitriol; Mohr's salt; Moore salt; Martians salt.
【Description】Pale blue-green crystals or particles, relative density 1.864, light sensitive, gradually weathering and oxidizing in air. Decompose at about 100-110℃, soluble in water, insoluble in alcohol.
|
Test item |
AR |
CP |
Other |
|
Assay[(NH4)2Fe(SO4)2•6H2O] /% |
≥99.5 |
≥99.0 |
Custom |
|
pH(50g/L,25℃) |
3.0-5.0 |
3.0-5.0 |
|
|
Water insoluble /% |
≤0.005 |
≤0.02 |
|
| Chloride(Cl) /% |
≤0.001 |
≤0.005 |
|
| Phosphate(PO4) /% |
≤0.000 5 |
≤0.002 |
|
| Manganese(Mn) /% |
≤0.05 |
- |
|
| Ferric iron(Fe3+) /% |
≤0.01 |
≤0.02 |
|
| Copper(Cu) /% |
≤0.002 |
≤0.01 |
|
| Zinc(Zn) /% |
≤0.003 |
≤0.02 |
|
| Lead(Pb) /% |
≤0.002 |
≤0.004 |
|
| Ammonia water does not precipitate (as SO4) /% |
≤0.1 |
≤0.2 |
【Use】Used for analytical reagents, such as preparation of ferrous ion standard solution; Also used as polymerization catalyst; Can be used as water purification agent; Raw materials for the preparation of other iron compounds, such as iron oxide pigments, magnetic materials, yellow blood salts and other iron salts; Can be used as a mordant in printing and dyeing industry; Used for tanning leather in the leather industry; Used as an antiseptic in the wood industry.