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Product name |
Ammonium iron (II) sulfate, hexahydrate |
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Specification |
Reagent grade |
|
Molecular formula |
(NH4)2Fe(SO4)2·6H2O |
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CAS |
|
|
H.S. CODE |
2842909090 |
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Molecular weight |
392.14 |
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Appearance |
Light blue-green crystals |
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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
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Test items |
Specification |
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AR grade |
CP grade |
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Appearance |
Light blue-green crystals |
Light blue-green crystals |
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|
Assay |
≥99.5% |
≥99.0% |
|
|
pH |
3.0~5.0 |
3.0~5.0 |
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Water insoluble |
≤0.005% |
≤0.02% |
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|
Chloride |
≤0.001% |
≤0.005% |
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Phosphate |
≤0.0005% |
≤0.002% |
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|
Manganese |
≤0.05% |
- |
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Iron |
≤0.01% |
≤0.02% |
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Copper |
≤0.002% |
≤0.01% |
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Zinc |
≤0.003% |
≤0.02% |
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|
Lead |
≤0.002% |
≤0.004% |
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Substances not precipitated by ammonium hydroxide |
≤0.1% |
≤0.2% |
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Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
