Xi'An Lanzhiguang Fine Material CO.Ltd
Your current location>>Home>>product
 Name: Ferrous sulphate heptahydrate
Ferrous sulphate  heptahydrate

CAS No.: [ CAS 7782-63-0 ]
Molecular formula: FeSO4 . 7H2O
Molecular weight: 278.03
Property: blue-green crystal or particle, no smell;air-slake; soluble in water, nearly insoluble in alcohol.
Uses: chromatographic analysis agent,assay determination platinum,selenium,nitrite, reducing agent
Enterprise standard: Factory  standard  

 

Ordinal

The examination  iterm

Factory standard

1

(Appearance)

(Light blue-green crystal)

2

(FeSO4 . 7H2O)(Content)

≥99.0--101.1%

3

(Insolubles in water)

≤0.02%

4

(Cl-)

≤0.003%

5

(Fe3+)

≤0.02%

6

(Cu)

≤0.002%

7

(Alkaline-earth metal)

≤0.10%

8

(As)

≤0.002%

9

(Zn)

≤0.01%

10

(Mn)

≤0.05%

11

(Pb)

≤0.005%

back
qq߿ͷ1