molecular formula: Fe2(SO4)3
CAS: 10028-22-5
Appearance:
White or light yellow powder
Properties:
A soil white or yellowish powder, easy ChaoXie, 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.
Use:
As an analytical reagent, sugar to quantitatively measure, iron catalyst, mordant DTC system pigment, drugs.
Details:
|
Test item |
Specification |
|
Reagent grade |
Pharmaceutical grade |
|
Appearance |
Conform |
Conform |
|
Assay (Fe)/% |
≥21.0-23.0 |
≥21.0-23.0 |
|
Water insoluble /% |
≤0.01 |
≤0.02 |
|
Chloride (Cl)/% |
≤0.002 |
≤0.005 |
|
Nitrate (NO3)/% |
Conform |
Conform |
|
Arsenic (As)/% |
≤0.0005 |
≤0.001 |
|
Copper (Cu)/% |
≤0.005 |
≤0.01 |
|
Ferric (Fe2+)/% |
≤0.01 |
≤0.05 |
|
Zinc (Zn)/% |
≤0.005 |
≤0.02 |
|
Alkali and alkaline metal /% |
≤0.1 |
≤0.25 |
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