Products  
     
 
Iron(II) sulfate heptahydrate
Molecular formula:FeSO4.7H2O
Related molecular weight:278.01
Property:Light blue and green crystallization, density 1.897, melting point 64 ° C in dry air vulnerable to weathering.
Use:Analysis reagents, purifying agent, polymerization catalysts, pesticides, etc..
Packaging:500g plastic bottle or 25KG plastic woven bag.
The products confirm to GB/T664-1993 standard.

Testing item

Analytically pure

Chemically pure

Content

99.0~101.0

98.0~101.0

Water insoluble

0.005

0.02

Chloride(cl)

0.001

0.005

Total nitrogen(N)

0.001

 

Phosphate(PO4)

0.0005

0.002

(As)

0.0002

0.0002

(Mn)

0.05

 

(Fe)

0.02

0.10

(Cu)

0.002

0.01

(Zn)

0.005

0.02

(Pb)

0.002

0.005

Ammonium hydroxide not precipitate(sulphate)

0.05

0.2