Formula:

FeSO₄.7H₂O

M.W.:    

278.01

Appearance:

Blue or green color transparent crystals or crystalline powder; easily soluble in water.

Specifications: 

                 GB 10531- 89     GB 8252- 87     CP1995

FeSO₄.7H₂O:        94.0% min          98.0% min         98.5 – 104%

TiO₂ Content:      0.5% max          ------------        -----------

Arsenic (As):      0.0005% max        0.0002% max        0.0002% max

Heavy Metals (Pb)  0.002% max;        0.002% max         0.002% max

Water Insolubl     0.50% max;         0.20% max         ------------

Free Acid (H₂SO₄): 1.0% max         ---------------     ------------

Purity (as Fe ):   -------------     19.68% min         ------------

Acidity(pH):       -------------    --------------       3.0 – 4.0

Alkali Sulfates:   -------------    --------------     Up to standard

Package: 

in 25 or 50 kg net PP woven bags with inner lining.

Uses:

GB 10531-89 is for water treatment;

GB 8252-87 is for feed additives;

CP 1995 is for pharmaceuticals;

All above can be used as fertilizers; agrochemicals and in other technical uses.