Ferrous Sulfate
Ferrous Sulfate for Water Treatment, Agriculture & Industrial Applications
Ferrous sulfate is a versatile iron-based inorganic salt used extensively across wastewater treatment, agricultural nutrients, animal feed formulations, and specialized chemical processing.
For B2B buyers and chemical procurement teams, specifying "Ferrous Sulfate" alone is insufficient. Hydration form, active iron concentration, moisture, insoluble impurities, and particle size distribution directly dictate performance in production lines and dosing systems. We supply industrial-grade, agricultural-grade, and feed-grade ferrous sulfate manufactured to exact technical specifications.
Technical Comparison: Monohydrate vs. Heptahydrate
|
Parameter |
Ferrous Sulfate Monohydrate |
Ferrous Sulfate Heptahydrate |
|
Chemical Formula |
FeSO4.H2O |
FeSO4.7H2O |
|
CAS Number |
13463-43-9 |
7782-63-0 |
|
Theoretical Fe Content |
~30% - 32% min |
~19% - 20% min |
|
Crystal Water Content |
~10% - 12% |
~45% - 48% |
|
Physical Appearance |
Fine Dry Powder / Free-Flowing Granular |
Light-Green Crystalline / Fine Granular |
|
Handling & Storage |
High physical stability, low caking risk |
Moisture-sensitive, prone to oxidation in air |
|
Logistics Advantage |
Lower freight cost per unit of active iron |
Lower per-ton unit price for localized use |
|
Primary Applications |
Animal feed premixes, compound fertilizers, concentrated chemical formulations |
Municipal & industrial wastewater treatment, soil conditioning, liquid fertilizers |
Application-Specific Technical Requirements
Water & Wastewater Treatment
Primary Target: Heavy metal precipitation, phosphorus removal, and coagulation/flocculation.
Key Specifications to Lock: Fe content, water-insoluble matter, particle dissolution rate.
Procurement Impact: High insoluble matter can clog automated dosing pumps and cause sediment accumulation in mixing tanks.
Fertilizer Production & Agriculture
Primary Target: Micronutrient iron supplementation in dry blends, soil amendments, and liquid sprays.
Key Specifications to Lock: Available iron percentage, particle size distribution (mesh size), moisture content.
Procurement Impact: Consistent particle size prevents bulk segregation during dry blending and automated hopper feeding.
Animal Feed & Feed Premixes
Primary Target: Controlled iron nutrition in animal feed.
Key Specifications to Lock: Heavy metal limits (As, Pb, Cd, Hg), microbiological limits, flowability.
Procurement Impact: Industrial grades cannot be substituted for feed applications. Feed-grade compliance requires strict trace-element testing (via ICP-MS/AAS).
Industrial Chemical Manufacturing
Primary Target: Raw material for iron oxide pigments, battery precursor materials, and catalytic processes.
Key Specifications to Lock: High chemical purity, trace contaminant limits, strict batch-to-batch consistency.
Critical Physical & Chemical Parameters Explained
Active Iron (Fe) & Ferrous Iron (Fe2+):
Total Fe defines the raw strength, but Ferrous Iron (Fe2+) confirms the active state available for chemical reaction or bio-absorption before ambient oxidation occurs.
Moisture & Flowability:
Free moisture induces caking in storage and disrupts automated metering systems. Monohydrate offers lower bound moisture, making it far more free-flowing.
Particle Size Distribution:
Available in fine powder (e.g., 80-100 mesh) or granular forms (e.g., 2-4 mm). Matching mesh size to your feeder type minimizes dust generation and batch separation.
Water-Insoluble Matter:
Low insoluble limits are mandatory for liquid dosing, spray equipment, and clear chemical solutions.
Quality Assurance & Compliance Standards
A reliable bulk supply relies on strict verification rather than generic claims:
Quality Workflow:
Raw Material Inspection -> In-Line Process Control -> Batch Laboratory Testing -> Certificate of Analysis (COA) Generation -> Order Release
01
Testing Methods:
Heavy metals verified via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) or Atomic Absorption Spectroscopy (AAS).
02
Documentation Support:
Batch-specific COA, Safety Data Sheet (SDS / GHS compliant), Technical Data Sheet (TDS), Certificate of Origin (COO), and third-party inspection reports (SGS / Intertek) upon request.
03
Standard Compliance:
Formulations matched to industrial, agricultural, or international feed-grade criteria (e.g., FAMI-QS / EU regulations where applicable).
04
Packaging, Storage & Logistics
Packaging Options:
25 kg multi-wall paper bags / woven PE-lined bags
500 kg or 1,000 kg FIBC jumbo bags
Palletized, shrink-wrapped, and container-optimized loading options available
Storage Guidelines:
Store in a cool, dry, well-ventilated warehouse. Keep containers tightly sealed to prevent atmospheric moisture uptake and aerial oxidation of Fe2+ to Fe3+, particularly for Heptahydrate crystal stock.
Request a Technical Quote & Specification Sheet
To receive an exact FOB/CIF quotation and matching TDS within 24 hours, please include the following parameters in your inquiry:
Hydration Form & Grade:
Monohydrate or Heptahydrate? (Feed, Agricultural, Water Treatment, or Industrial Grade)
01
Target Specifications:
Required Fe %, max moisture %, preferred mesh size / particle format.
02
Quantity:
Initial order volume and estimated annual consumption.
03
Packaging & Logistics:
25kg bags or Jumbo bags? Target destination port and delivery schedule.
04
Required Documentation:
COA, SDS, Certificate of Origin, or third-party inspection requirements.
05
Submit your detailed requirements to our technical sales team at [Your Sales Email Address] or use the inquiry form below to get started.
FAQ