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Pharmaceutical excipients
Ferrous sulfate anhydrous

Product name

Ferrous sulfate anhydrous

Specification

Pharmaceutical grade (USP,BP,EP,CP)

Molecular formula

FeSO4

CAS

7720-78-7

H.S. CODE

2833291000

Molecular weight

278.05

Appearance

Greyish-white powder

Package

25KG Woven bags or fiber drums


Property

    Blue green monoclinic crystal, soluble in water, glycerin, insoluble in ethanol. It is corrosive. Density is 1.8988g/cm3 .

Application

  Analytics reagents. DTC, polymerization catalysts. Also used in photoengraving, medium preparation.

Test standard

Test items

Specification

BP2015

USP35

CP2015

Appearance

Greyish-white powder

Greyish-white powder

Greyish-white powder

Assay

86.0~90.0%

86.0~89.0%

86.0~90.0%

pH

3.0~4.0

 

3.0~4.0

Chloride

0.03%

 

0.03%

Mercury

 

0.0003%

 

Iron

0.5%

 

0.5%

Zinc

0.05%

 

0.05%

Nickel

0.01%

 

0.01%

Arsenic

 

0.001%

 

Manganese

0.1%

 

0.1%

Copper

0.005%

 

0.005%

Chromium

0.01%

 

0.01%

Insoluble matters

 

0.05%

 

Storage

    Do not store in direct sunlight. Store in a cool, dry area away from incompatible substances.


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