Ferrous Sulphate Heptahydrate 98% Industrial Grade

Ferrous Sulphate Heptahydrate, also known as Ferrous Sulfate Heptahydrate, Iron(II) Sulfate Heptahydrate, or Green Vitriol, is an inorganic iron salt with the chemical formula FeSO₄·7H₂O and CAS No. 7782-63-0.

It is typically supplied as light green to blue-green crystals or granules and is soluble in water. Industrial Grade Ferrous Sulphate Heptahydrate is widely used in water and wastewater treatment, phosphorus-control processes, chemical reduction, fertilizer production, cement manufacturing, pigment production, chemical processing, and other industrial applications.

The product contains approximately 98% Ferrous Sulphate Heptahydrate, subject to the manufacturer’s approved specification and batch-specific Certificate of Analysis.

Ferrous Sulphate provides a soluble source of ferrous iron and functions as a reducing agent in selected chemical and wastewater-treatment processes. Its combination of iron content, water solubility, and reducing properties makes it a versatile and cost-effective industrial raw material.

Product Information

Product Name: Ferrous Sulphate Heptahydrate
US Spelling: Ferrous Sulfate Heptahydrate
Chemical Name: Iron(II) Sulfate Heptahydrate
Common Name: Green Vitriol
Chemical Formula: FeSO₄·7H₂O
CAS No.: 7782-63-0
Molecular Weight: 278.01 g/mol
Grade: Industrial Grade
Purity: ≥98.0%
Iron Content: Approx. ≥19.0%*
Physical Form: Crystals / Granules
Appearance: Light Green to Blue-Green Crystals
Water Solubility: Soluble
Packaging: 25 kg PP Woven Bag with PE Inner Liner

Key Features

• Ferrous Sulphate Heptahydrate ≥98%
• Industrial Grade
• CAS 7782-63-0
• FeSO₄·7H₂O
• Light green to blue-green crystalline appearance
• Good water solubility
• Source of ferrous iron
• Reducing-agent functionality
• Suitable for industrial wastewater treatment
• Suitable for phosphorus-control processes
• Suitable for selected chromium-reduction processes
• Suitable for fertilizer and soil-treatment applications
• Suitable for cement manufacturing
• Suitable for pigment production
• Suitable for iron-compound manufacturing
• Export-ready bag packaging
• TDS, COA, and SDS documentation available

Technical Specifications

*
Supplier-dependent specifications should be confirmed against the manufacturer’s current Technical Data Sheet and batch Certificate of Analysis before being represented as guaranteed contractual values.

Applications

Water & Wastewater Treatment

Ferrous Sulphate is widely used as an iron-based chemical in municipal and industrial water-treatment systems.

Typical applications include:

• Phosphorus removal
• Phosphate precipitation
• Chemical reduction
• Coagulation-related processes
• Sludge conditioning
• Industrial effluent treatment
• Selected heavy-metal treatment processes
• Oxidation-reduction treatment systems
• Process-water treatment

Ferrous iron can participate in reduction reactions and may subsequently oxidize to ferric iron under suitable process conditions.

Treatment performance depends on wastewater composition, pH, contaminant concentration, iron dosage, oxidation-reduction conditions, mixing, contact time, settling, filtration, and downstream treatment requirements.

Process testing should be performed before establishing a final treatment dosage.

Phosphorus Control

Ferrous Sulphate may be used to assist with phosphorus reduction in wastewater-treatment systems.

Under suitable conditions, iron can react with phosphate species to form less-soluble compounds that may then be separated through sedimentation, clarification, or filtration.

Important process factors include:

• pH
• Iron-to-phosphorus ratio
• Phosphate concentration
• Reaction time
• Mixing conditions
• Competing ions
• Oxidation state
• Solid-liquid separation efficiency

Dosage should be determined according to actual wastewater conditions and treatment objectives.

Chromium Reduction

Ferrous iron has reducing properties and may be used in properly designed treatment processes for certain oxidized chromium species.

Process performance depends strongly on:

• Chromium oxidation state
• pH
• Ferrous dosage
• Reaction time
• Mixing
• Subsequent precipitation
• Sludge handling
• Required discharge limits

Final treatment design should be based on laboratory testing and process engineering.

Fertilizer & Agriculture

Ferrous Sulphate can be used as an iron-containing raw material in selected agricultural and fertilizer applications.

Potential uses include:

• Iron micronutrient source
• Fertilizer blending
• Soil treatment
• Soil acidification in selected applications
• Correction of iron deficiency
• Turf applications
• Horticultural applications
• Manufacturing of iron-containing fertilizer products

Product suitability and dosage should be determined according to soil analysis, crop requirements, local agricultural regulations, and the actual supplied grade.

Industrial Grade Ferrous Sulphate should not automatically be represented as Feed Grade or Food Grade.

Cement Manufacturing

Ferrous Sulphate may be used as a reducing agent in selected cement-manufacturing processes.

Potential applications include chemical reduction during cement production and control of certain oxidized chromium compounds.

Actual dosage depends on:

• Cement composition
• Chromium content
• Manufacturing conditions
• Storage conditions
• Required final cement specification

Suitability should be verified through production testing.

Pigment Manufacturing

Ferrous Sulphate is commonly used as an iron raw material for the production of selected iron-based pigments.

Potential applications include:

• Iron oxide pigments
• Iron oxide red
• Iron-based colorants
• Other iron compounds

Required impurity levels depend on the pigment manufacturing process and final product specification.

Chemical Manufacturing

Ferrous Sulphate may be used as:

• Iron-source raw material
• Reducing reagent
• Chemical intermediate
• Precursor for other iron compounds
• Raw material for selected ferric salts
• Process reagent
• Industrial formulation ingredient

Its ferrous iron content makes it useful in a variety of reduction and iron-conversion processes.

Textile Processing

Ferrous Sulphate may be used in selected textile and dyeing applications.

Potential functions include:

• Dyeing processes
• Mordant-related applications
• Color development
• Reduction processes
• Textile wastewater treatment

Suitability depends on the specific textile process and required product quality.

Mining & Mineral Processing

Ferrous Sulphate may be used in selected mineral-processing and industrial treatment systems as a reducing reagent or iron-source chemical.

Application conditions should be established according to ore chemistry, process design, treatment objectives, and environmental requirements.

Packaging

Standard export packaging:

25 kg PP Woven Bag with PE Inner Liner

Alternative packaging may be available depending on supplier capability, including:

• 25 kg laminated PP bag
• 25 kg kraft paper bag with PE inner liner
• 50 kg PP woven bag
• 500 kg jumbo bag
• 1,000 kg jumbo bag

Packaging should protect the product from moisture, contamination, and unnecessary exposure to air.

All packaging configurations should be confirmed before order placement.

Storage

Store Ferrous Sulphate Heptahydrate in a cool, dry, and well-ventilated warehouse.

Recommended storage practices include:

• Keep bags tightly closed
• Protect from moisture
• Protect from rain and humidity
• Store on dry pallets
• Keep packaging away from wet floors
• Avoid prolonged exposure to air
• Protect from contamination
• Keep away from strong oxidizing agents
• Keep separate from incompatible alkaline materials
• Reseal opened bags promptly
• Avoid unnecessary exposure to direct sunlight and excessive heat

Ferrous iron may gradually oxidize to ferric compounds when exposed to moisture and air, which may affect appearance and product performance.

Handling & Safety

Avoid:

• Excessive dust generation
• Eye contact
• Prolonged skin contact
• Inhalation of airborne dust
• Ingestion
• Uncontrolled mixing with incompatible chemicals

Recommended protective measures may include:

• Chemical-resistant gloves
• Safety goggles
• Protective clothing
• Suitable dust control
• Local ventilation where necessary
• Appropriate respiratory protection where required by workplace exposure conditions

Always follow the current product-specific Safety Data Sheet before handling, storage, transport, use, or disposal.

Quality Documentation

Supporting documentation may include:

• Technical Data Sheet (TDS)
• Safety Data Sheet (SDS)
• Batch-specific Certificate of Analysis (COA)
• Commercial Invoice
• Packing List
• Certificate of Origin where applicable
• Transport documentation where required

Certification claims should only be made when they genuinely apply to the supplied product and are supported by valid documentation.

Typical COA Parameters

A batch-specific Certificate of Analysis may include:

• Appearance
• Ferrous Sulphate Heptahydrate content
• Iron as Fe
• pH
• Lead
• Arsenic
• Cadmium
• Water insoluble matter
• Moisture
• Batch number
• Production date
• Inspection date
• Quality-control conclusion

All analytical values should represent the actual supplied batch.

Quality Assurance

Product quality should be controlled according to the manufacturer’s approved technical specification.

Final purity, iron content, pH, heavy-metal limits, moisture, insoluble matter, and other quality parameters should be verified through the current manufacturer TDS and batch-specific COA.

Important Product Identity Information

This product is Ferrous Sulphate Heptahydrate, formula FeSO₄·7H₂O, CAS No. 7782-63-0.

It should not be confused with other forms of Ferrous Sulphate that may have different hydration states, specifications, molecular weights, or CAS references.

The product name, formula, CAS number, packaging label, TDS, SDS, and COA should all identify the same material.

Important Grade Information

This product is supplied as Industrial Grade Ferrous Sulphate Heptahydrate.

Industrial Grade material should not automatically be advertised as:

• Food Grade
• Feed Grade
• Pharmaceutical Grade
• Drinking-Water Approved
• Certified Agricultural Grade

unless the actual supplied material meets the applicable standard and valid supporting documentation is available.

Product Summary

Product: Ferrous Sulphate Heptahydrate
US Name: Ferrous Sulfate Heptahydrate
Common Name: Green Vitriol
Formula: FeSO₄·7H₂O
CAS No.: 7782-63-0
Molecular Weight: 278.01 g/mol
Grade: Industrial Grade
Purity: ≥98.0%
Iron Content: Approx. ≥19.0%*
Appearance: Light Green to Blue-Green Crystals
Solubility: Soluble in Water
Packaging: 25 kg PP Woven Bag with PE Inner Liner
Primary Applications: Water Treatment, Wastewater Treatment, Phosphorus Control
Additional Applications: Fertilizer, Cement Manufacturing, Pigment Production, Chemical Processing, Textile Applications
Documentation: TDS / COA / SDS