Agricultural, Industrial & Food Grade Ferrous Sulfate CAS 7720-78-7 Green Vitriol for Fertilizer & Water Treatment

Ferrous Sulfate (Common Name: Green Vitriol, CAS:7720-78-7,EINECS:231-753-5, HS Code:2833299090) is a versatile inorganic iron compound available in heptahydrate (FeSO₄·7H₂O) and monohydrate (FeSO₄·H₂O) forms. Our agricultural, industrial and food grade products comply with GB 10531-2016, GB 29211-2012, USP, EP and FCC quality standards. It appears as pale green crystalline powder or blue-green crystals with metallic taste, highly soluble in water and slightly soluble in ethanol. As a cost-effective iron source and coagulant, it is widely used in agriculture, water treatment, food industry, pharmaceuticals and chemical manufacturing.

Applications
Agricultural Industry (Core Application)
Premium iron fertilizer: Corrects iron chlorosis (yellowing) in plants by promoting chlorophyll synthesis
Soil amendment: Adjusts soil pH for acid-loving crops (blueberries, azaleas, camellias, hydrangeas)
Pesticide & fungicide: Controls wheat smut, apple and pear scab, and tree moss/lichen
Livestock feed additive: Prevents iron deficiency anemia in poultry and livestock
Aquaculture: Maintains water quality and provides essential iron for aquatic organisms
Water Treatment Industry (Key Application)
Coagulant/flocculant: Removes suspended solids, phosphates and heavy metals from wastewater
Phosphorus removal: Prevents eutrophication in lakes and ponds by forming insoluble iron phosphate
pH adjustment: Lowers pH in water treatment processes
Sludge conditioning: Improves dewatering efficiency of wastewater treatment plant sludge
Drinking water treatment: Removes arsenic and other contaminants
Food Industry
Iron fortifier: Added to flour, cereals, infant formula and nutritional supplements
Color retention agent: Prevents discoloration in fruits and vegetables during processing
Antioxidant: Extends shelf life of food products by inhibiting oxidation
Processing aid: Used in pickling processes to maintain color and texture
Dietary supplement: Treats iron deficiency anemia in humans
Industrial Applications
Chemical synthesis: Precursor for iron oxides (pigments), ferric sulfate and other iron compounds
Textile industry: Mordant for dyeing and printing processes to fix colors
Wood preservation: Treats wood to prevent decay and insect infestation
Concrete additive: Improves strength and durability of concrete structures
Mining industry: Used in mineral processing and flotation operations
Other Applications
Pharmaceutical industry: Active ingredient in iron supplements for anemia treatment
Cosmetics: Used in some skincare products for its astringent properties
Laboratory: Analytical reagent for chemical analysis and research
Waste management: Treats industrial waste containing heavy metals

Product Advantages
✅ Cost-effective: High performance at low cost compared to other iron compounds
✅ Multi-grade options: Agricultural, industrial and food grades for diverse applications
✅ Dual hydration forms: Heptahydrate (high solubility) and monohydrate (high stability) available
✅ High bioavailability: Efficiently absorbed by plants and animals
✅ Versatile functionality: Acts as fertilizer, coagulant, fortifier and reducing agent
✅ Environmentally friendly: Natural iron source that does not introduce harmful chemicals

Packaging & Storage
Agricultural grade: 25kg woven bags with inner PE liner, 50kg plastic drums or 1000kg FIBC containers. Industrial grade: 25kg fiber drums with PE liners or 1000kg bulk bags. Food grade: 25kg paper bags with double PE liners, 10kg cartons or 1kg aluminum foil bags for small orders. Store in a cool, dry and well-ventilated warehouse at 25°C or below. Keep containers tightly sealed to prevent oxidation, moisture absorption and caking. Avoid direct sunlight, heat sources and contact with alkaline substances. Shelf life is 12 months for heptahydrate and 24 months for monohydrate under proper storage conditions.

Safety Information
Classified as non-hazardous for transportation (not regulated as dangerous goods). It is generally recognized as safe (GRAS) by FDA for food applications. The product is slightly corrosive and may cause mild irritation to skin, eyes and respiratory tract. Wear protective gloves and goggles during handling. In case of contact, rinse the affected area with plenty of clean water. Avoid inhalation of dust and ingestion. Complete MSDS and relevant qualification certificates (COA, GMP, ISO) can be provided upon request.

With 15 years of experience in chemical foreign trade, we offer the following core strengths to support your procurement needs:
1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
5.6 packaging options with customizable logos to minimize product loss during transportation.
6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.
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