


Agricultural Grade Ferrous Sulphate
Brand: Pinsen
Product Origin: Shandong, China
Fornula: FeSO4 · 7H2O
CAS: 7782-63-0
HS Code: 2833299090
Grade: Agricultural Grade
Packing: 25kg, 50kg, 1250kg
✓ Provides soluble ferrous iron and sulfur
✓ Good water solubility, suitable for foliar spraying, drip irrigation and soil application
✓ Uniform crystal/granule, low impurities, stable quality
✓ Improves alkaline soil, reduces soil pH and activates soil nutrients
✓ Ideal raw material for BB fertilizer and compound fertilizer blending
✓ Cost-effective iron source for fruit trees, flowers and cash crops
Product Description
Ferrous Sulfate Heptahydrate (FeSO₄·7H₂O, Molecular Weight: 278.01, CAS No.: 7782-63-0, EINECS: 231-753-5), commonly known as green vitriol or copperas, is an inorganic salt widely utilized across environmental, agricultural, and manufacturing industries. It appears as free-flowing pale blue-green monoclinic crystalline granules, dissolves rapidly in water and glycerol, and delivers stable reducing performance with outstanding cost-effectiveness.
Specifications
| Test Itm | Standard Value |
| Appearance | Blue-Green Crystalline Granules |
| Purity | % min 94.6 |
| Total Iron (Fe) | % min 19.0 |
| Bulk Density | 65 Lbs./Cu.Ft. |
| Arsenic (As) | % max 0.002 |
| Lead (Pb) | % max 0.002 |
| Manganese (Mn) | % max 0.058 |
| Chromium & Vanadium | % max 0.0052 |
| Copper & Tin | % max 0.0065 |
| Calcium (Ca) | % max 0.0064 |
| Magnesium & Zinc | % max 0.006 |
Application
Used as agricultural iron‑sulfur fertilizer to treat iron deficiency chlorosis. Suitable for acid-loving crops such as fruit trees, flowers, vegetables and seedlings. It can be applied by foliar spray, drip irrigation or soil base application to supplement iron and sulfur. It ameliorates saline‑alkali soil, activates soil nutrients, boosts chlorophyll synthesis, recovers green leaves and improves crop growth. Also used as raw material for water-soluble fertilizer and compound fertilizer.
