Xi'An Lanzhiguang Fine Material CO.Ltd
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 Name: Ferrous sulphate solution
Ferrous sulphate  solution

Property: black red with acidity
Uses: silver analysis, sugar testing, for the preparation of dye, ink, polymerization catalyst, mordant, water purifier
Enterprise standard: Factory  standard  

Ordinal

The examination  iterm

Factory standard

1

Appearance

(Black-red liquid)

2

Fe2(SO4 )3. 9H2O(content)

≥50%

3

Fe3+(content)

≥10%

4

(Insolubles in water)

≤0.003%

5

(Cl-)(Chloride)

≤0.0003%

6

(NO3-)(Nitrate)

≤0.001%

7

(Mn)

≤0.003%

8

(Fe2+)

≤0.0005%

9

(Zn)

≤0.002%

10

(Cu)

≤0.001%

11

(Pb)

≤0.0005%

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