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Langfang Tianke Biotechnology Co., Ltd.
Langfang Tianke Biotechnology
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Ferrous sulfate

Ferrous sulfate

Molecular formula: FeSO4·7H2O  
Molecular weight: 278.05
CAS NO:7782-63-0
Properties: sky blue or green monoclinic crystal or crystalline powder. Relative density is 1.8987, melting point is 64℃. Soluble in water and glycerin, insoluble in alcohol.
Uses: as analytical reagent, water purifier, gas purification agent, mordant, herbicide, and etc.
Standard: maximum assay of impurities is in 百分比

Item

Analytically pure-AR

Chemically pure-CP

High pure

Assay

≥99.0

≥98.0

98.5-104

Water insoluble matter

≤0.005

≤0.02

——

PH value

——

——

3.0-4.0

Nitrogen content (N)

≤0.001

——

——

Chloride (Cl)

≤0.001

≤0.005

——

Phosphate (PO4)

≤0.0005

≤0.002

——

Arsenic (As)

≤0.0002

≤0.0002

≤0.0002

Manganese (Mn)

≤0.05

 ——

——

High iron (Fe)

≤0.02

≤0.10

——

Copper (Cu)

≤0.002

≤0.01

——

Zinc (Zn)

≤0.005

≤0.02

——

Lead (Pb)

≤0.002

≤0.005

≤0.002

Non-sludging to ammonium hydroxide (as sulfate)

≤0.05

≤0.2

——

Magnesium (Mg)

 ——

——

≤0.002

Titanium (Ti)

——

——

≤ 0.002

Aluminum (Al)

——

——

≤0.02

Packing: woven bag lined with plastic bag, kraft bag and fiber drum, net weight is 25kg.

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Langfang Tianke Biotechnology Co., Ltd.
Add: Sanghang Industrial Park, Dacheng County,
Hebei, China
Tel:+86-15076659665 Manager Ma
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