.Description
CAS No.: 7782-63-0
MF: FeSO4.7(H2O)
EINECS No.: 238-676
2. Appearance: Light blue green crystal
3.Specification
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Test item
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Specification
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|
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Reagent grade
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Pharmaceutical grade
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|
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Appearance
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Conform
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Conform
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Assay /%
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≥99.0-101.0
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≥98.0-101.0
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Water insoluble /%
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≤0.005
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≤0.02
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Chloride (Cl)/%
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≤0.001
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≤0.005
|
|
N/%
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≤0.001
|
-
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|
Phosphate (PO4)/%
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≤0.0005
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≤0.002
|
|
Arsenic (As)/%
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≤0.0002
|
≤0.0002
|
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Manganese (Mn)/%
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≤0.05
|
-
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Ferric (Fe)/%
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≤0.02
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≤0.10
|
|
Copper (Cu)/%
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≤0.002
|
≤0.01
|
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Zinc (Zn)/%
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≤0.005
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≤0.02
|
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Lead (Pb)/%
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≤0.002
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≤0.005
|
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Ammonia not sediment /%
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≤0.05
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≤0.2
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