Product name |
Ammonium iron (II) sulfate, hexahydrate |
Specification |
Reagent grade |
Molecular formula |
(NH4)2Fe(SO4)2·6H2O |
CAS |
|
H.S. CODE |
2842909090 |
Molecular weight |
392.14 |
Appearance |
Light blue-green crystals |
Package |
25KG Woven bags or fiber drums |
Property:
A soil white or yellowish powder, namely into a brown liquid. Soluble in water and alcohol. Anhydrous ferric density for 3.097 g/cm ^ 3. Become acidic aqueous solution, heating through 480 ℃ when decompose, release sulphur trioxide become trioxide iron, avoid light, moistureproof, sealing preservation.
Application:
As an analytical reagent, sugar to quantitatively measure, iron catalyst, mordant DTC system pigment, drugs.
Test standard:GB/T661-2011
Test items |
Specification |
||
AR grade |
CP grade |
||
Appearance |
Light blue-green crystals |
Light blue-green crystals |
|
Assay |
≥99.5% |
≥99.0% |
|
pH |
3.0~5.0 |
3.0~5.0 |
|
Water insoluble |
≤0.005% |
≤0.02% |
|
Chloride |
≤0.001% |
≤0.005% |
|
Phosphate |
≤0.0005% |
≤0.002% |
|
Manganese |
≤0.05% |
- |
|
Iron |
≤0.01% |
≤0.02% |
|
Copper |
≤0.002% |
≤0.01% |
|
Zinc |
≤0.003% |
≤0.02% |
|
Lead |
≤0.002% |
≤0.004% |
|
Substances not precipitated by ammonium hydroxide |
≤0.1% |
≤0.2% |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.