Product identity and grade
State the exact identity, form, concentration, water application, quantity, packing, destination and documents.
Water treatment chemical · Iron(II) treatment chemical
Ferrous Sulfate for Water Treatment
Ferrous sulfate is an iron(II) salt supplied in different hydration states for selected coagulation, precipitation and reduction-stage water-treatment programs.
- Identity
- CAS 7720-78-7 anhydrous; heptahydrate CAS 7782-63-0
- Form
- Monohydrate, heptahydrate or solution—confirm
- Use basis
- System and jurisdiction specific
- Specification
- Contact sales
Product image · confirm grade and packaging when ordering
Share exact identity, form, water application, quantity, destination and document requirements.
ApplicationWater-system specific
SpecificationAvailable privately from sales
ValidationBench and system testing required
ComplianceExact use and market specific
Direct product answer
What is Ferrous Sulfate for water treatment?
Ferrous sulfate is an iron(II) salt supplied in different hydration states for selected coagulation, precipitation and reduction-stage water-treatment programs.
Selection depends on the exact commercial form, incoming-water chemistry, process objectives, treatment train, materials of construction, residual limits, operator controls and jurisdiction. This page supports procurement qualification and is not a dosing instruction.
Procurement snapshot
- Product
- Ferrous Sulfate
- Category
- Iron(II) treatment chemical
- Identity
- CAS 7720-78-7 anhydrous; heptahydrate CAS 7782-63-0
- Form
- Monohydrate, heptahydrate or solution—confirm
- Use review
- Water, system and market specific
- Product specification
- Request the offered grade’s specification
Procurement checklist
How to source Ferrous Sulfate in bulk
Use these procurement questions when comparing a China supplier, manufacturer source, distributor, sample or bulk quotation.
Quotation and delivery basis
Compare source-specific specification, concentration basis, packing, transport classification, Incoterm and delivery.
Application and process requirements
Share water analysis, process objective, materials, operating envelope, discharge limits and validation plan.
Technical and quality documents
Request current SDS, specification or TDS, representative COA, batch COA, traceability and applicable certification.
Application screening
Ferrous Sulfate water-treatment application guide
These are technical screening areas—not universal approvals, operating directions, efficacy claims or guaranteed outcomes.
Municipal and industrial wastewater coagulation
Use samples that represent changes in suspended solids, pH and organic load. Compare clarification and downstream separation with the current treatment, and record sludge production as well as chemical consumption.
Phosphorus-removal programs
Define the phosphorus target and the treatment stage before screening a grade. Measure phosphorus after the actual solids-separation step and assess pH, residual metal and additional sludge together.
Chromium reduction and precipitation trains
Establish the required metal oxidation state and treatment endpoint through the site's technical program. Validate the complete reduction or precipitation and separation sequence, including residual metal and discharge quality.
Sulfide-control and specialty treatment
Use the actual sulfide load and treatment location to define a trial. Check dissolved sulfide, resulting solids, residual iron and downstream process compatibility rather than relying on odor alone.
Technical selection
Questions to resolve before approving Ferrous Sulfate
Hydrate and particle form
Identify the hydrate and particle form before setting a purchase specification. Different hydrate forms should not be compared solely by total product weight.
Ferrous iron and sulfate basis
Report ferrous iron and sulfate on an agreed basis. Use these values when comparing delivered active content and the sulfate contribution to the process.
Ferric iron, free acid and insolubles
Request limits for ferric iron, free acid and insolubles appropriate to the application. Include the supplier's storage and retesting information in the qualification file.
Oxidation control, jar testing and discharge requirements
Assess oxidation conditions and the resulting solids-separation stage in trials. Verify residual iron and discharge criteria for the actual treatment train.
Private technical documentation
Request the current Ferrous Sulfate product specification
Bespring Chemical does not publish product specifications for this water-treatment chemical online. Contact sales for the current source-specific specification or TDS and confirm its revision, methods and acceptance criteria.
Product documents
Request the current signed specification or TDS, SDS, analytical methods, representative COA and batch COA.
Safety and logistics
Confirm classification, UN transport information where applicable, compatible packing, storage segregation, shelf life and emergency controls.
Authoritative context
Review US EPA drinking-water regulations, WHO Guidelines for Drinking-water Quality and NIH PubChem. Final approval depends on the exact product, water application and jurisdiction.
Water-use note: A raw-material identity does not establish potable-water approval, disinfectant efficacy or a safe universal dose. Treatment must be designed and validated from water data, monitored for relevant residuals and by-products, and operated under applicable product approvals and regulations.
Storage and handling
Handle Ferrous Sulfate under the current SDS
- Source instructionsFollow the current SDS and specification for temperature, ventilation, segregation and shelf life.
- IncompatibilitiesPrevent contact with incompatible chemicals, moisture, heat or contamination as identified for the exact product.
- Engineered controlsUse suitable closed handling, ventilation, containment, PPE, labeling and trained emergency procedures.
Water-treatment buyer questions
Ferrous Sulfate FAQ
What is Ferrous Sulfate used for in water treatment?
Ferrous sulfate is an iron(II) salt supplied in different hydration states for selected coagulation, precipitation and reduction-stage water-treatment programs. Suitability must be established for the exact treatment system and intended water use.
Which Ferrous Sulfate identity should buyers specify?
CAS 7720-78-7 anhydrous; heptahydrate CAS 7782-63-0; Monohydrate, heptahydrate or solution—confirm. State the exact commercial form, concentration, grade and source-specific requirements.
Why is there no public specification?
Bespring Chemical does not publish specifications for this water-treatment chemical online. Contact sales for the current source-specific specification or TDS, methods and representative COA.
Can Ferrous Sulfate be used for drinking-water treatment?
Only where the exact product is approved or certified for that application and the treatment is designed, validated, monitored and operated under applicable rules. This raw-material page does not establish potable-water approval.
What should the RFQ include?
Provide the exact identity, form or concentration, water application, source-water or system data, critical limits, quantity, packing, destination, documents, Incoterm and delivery date.
Content updated 2026-09-13.
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Specification-led chemical sourcing
Request a Ferrous Sulfate specification and quote
Share identity, form or concentration, water application, water or system data, critical limits, quantity, packing, destination and document list.
- Current private specification or TDS
- Representative and batch COA
- SDS, packing and transport confirmation
- Source-specific documents on request
Product documents
Request documents
Tell us your grade and destination market so we can confirm which documents are available for your order.
An external reference is not a batch certificate or a Bespring product specification.