Ferrous Sulfate
Allzone Trading supplies ferrous sulfate to water treatment, industrial and municipal customers in Toronto, the GTA, Ontario, Quebec and across Canada. Ferrous sulfate is an iron salt used as a coagulant and reducing agent in water and wastewater treatment. Hydrate form and grade vary by supply option and are confirmed at quotation.
At a glance
- Product
- Ferrous Sulfate
- Grades
- Grade confirmed at quotation
- Typical applications
- Wastewater coagulation and precipitation · Chromate reduction in industrial effluent · Phosphorus removal
- Packaging
- Packaging confirmed at quotation against the supplier specification

- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Grade confirmed at quotation
Grade, concentration and active content are quoted and confirmed against the supplier technical data sheet before any order is placed.
Typical applications
- Wastewater coagulation and precipitation
- Chromate reduction in industrial effluent
- Phosphorus removal
- Odour and sulphide control
- Soil and agricultural applications
Why Canadian buyers choose us
- Municipal, industrial, wastewater, boiler/cooling, RO and pool duties quoted as separate specifications
- Grade, concentration and active content confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the quoted grade
- Freight arranged across Toronto, the GTA, Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from smaller lots to container loads
Typical industries served
Material identity
Ferrous sulfate — identifiers and the names buyers use
- Chemical identity
- Iron(II) sulfate, commonly supplied as the heptahydrate crystal
- Commercial split
- Hydration state and grade differ by application and are quoted separately
- Strength / active content
- UNKNOWN — declared per product on supplier documentation at quotation
- Dose
- UNKNOWN — established by jar test on the water being treated
Also searched as
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
Ferrous sulfate — what it is, where it is used, how it is chosen
Ferrous sulfate is bought for two quite different reasons. In wastewater it is a low-cost iron source that oxidises to the ferric state and then coagulates and precipitates phosphorus. In metal finishing it is a reducing agent: it converts hexavalent chromium to the trivalent form so it can be precipitated out. Buyers arriving from those two directions need different grades and different documentation, which is why the enquiry should say which job it is doing.
Primary uses
- Hexavalent chromium reduction in plating and finishing effluent
- Phosphorus precipitation in wastewater at low chemical cost
- Sulphide and odour control in collection systems
- Iron amendment in soils and turf
Applications
- Metal finishing and plating shops across southern Ontario and Quebec
- Municipal wastewater phosphorus and odour programmes
- Cement and construction-materials chromate reduction
- Agricultural and turf applications
Advantages
- Lowest-cost iron source per unit in many wastewater applications
- Dry product, so no bulk liquid storage or containment is required
- Well established in both effluent treatment and chromate reduction duty
Limitations to consider
- Needs oxidation to the ferric state before it coagulates, which is not instant in cold water
- Crystals cake if stored damp, and dissolution equipment is required
- Adds iron to the sludge, which increases volume compared with organic coagulants
- Dose is established on your own water by jar test, coupon monitoring or a controlled plant trial. Supplier literature values are starting points for that trial, not a specification.
- Many treatment chemicals are regulated in transport and have specific storage, containment and personal-protection requirements. The SDS for the exact product offered is the governing document, and it should be reviewed before the delivery is scheduled rather than after it arrives.
How to choose the right grade
- Start from a current water or effluent analysis: alkalinity, pH, turbidity, temperature and the contaminant you are actually targeting
- State whether the duty is drinking water, wastewater, industrial effluent or process-water reuse, because the certification requirement follows from it
- Say what sludge volume and disposal cost you can live with — it often decides between inorganic and organic chemistry
- Confirm the coldest water temperature the plant sees, since winter performance in Canada is the real design case
- Confirm what dosing, make-down and storage equipment already exists before changing product family
- Coagulant and flocculant selection is decided by a jar test on your own water, not by a product name. Two plants treating water that looks identical on paper often land on different chemistry and very different doses.
- Exact specification is confirmed against supplier documentation at quotation.
Typical grades
- Technical / water-treatment grade
- Heptahydrate crystal grade
- Monohydrate grade where offered
- Solution strength and active content are per-offer values, and they change the dose and the true cost per unit of water treated. Compare quotations on active content delivered, not on price per litre or per kilogram, and read the value from the supplier documentation for the exact product offered.
- Drinking-water and food-contact applications require certification held for the specific product and manufacturing site. Whether the product offered carries it is confirmed against supplier documentation at quotation and is never presented here as a held approval.
Comparable materials — how Ferrous sulfate sits against alternatives
- Ferric chloride
- Ferric sulfate
- Sodium metabisulfite for chromate reduction
- Buyers looking for an alternative or second-source supplier should state the incumbent product and the property being matched. Treatment chemicals are rarely interchangeable on name alone: comparison depends on declared documentation and on a controlled trial in the running system.
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive Ferrous sulfate
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- Product identity and family — inorganic metal salt, organic coagulant or polyacrylamide flocculant
- Solution strength or active content as the supplier declares it for the exact product
- Charge type and charge behaviour where the product is a polymer
- Physical form supplied and the make-down or dilution equipment it requires
- Freezing point and cold-weather handling behaviour for liquids
- Certification status for the intended service, where the application is regulated
Packaging options (industry-standard)
- Drum format for low-throughput and remote dosing points
- IBC / tote format for the majority of plant dosing installations
- Bulk tanker delivery where the site has receiving tankage, containment and a controlled fill point
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Confirm tank, pipework, gasket and pump material compatibility against the SDS before the first delivery — the wrong elastomer fails quickly on treatment chemicals
- Provide secondary containment sized to the largest vessel, and keep incompatible chemicals in separate bunds
- Protect from Canadian winter conditions: several treatment solutions crystallise, freeze or separate at low temperature, and heat tracing or indoor storage may be needed
- Chemical incompatibility in storage and dosing is a genuine safety issue on treatment sites. Confirm segregation distances, separate containment, dedicated fill points and clearly distinct connections before a new product is introduced alongside an existing one.
Documentation available
- Technical data sheet (TDS) for the exact product offered, stating the solution strength or active content as the supplier declares it
- Safety data sheet (SDS) in the format required for Canadian import, including transport classification and incompatibility guidance
- Certificate of analysis (COA) against the confirmed production lot
- Drinking-water or potable-service certification where the application requires it and the supplier holds it for that product
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
RFQ checklist for ferrous-sulfate-canada
Include these fields to receive an accurate Canada-landed quotation
- The system being treated and what it does — drinking water, effluent, cooling, boiler, process or recreational water
- The problem you are trying to solve, and the limit or target you have to meet
- A current water or effluent analysis, since it decides what will actually work
- Annual volume and expected per-shipment quantity
- Packaging format your receiving and dosing installation can accept
- Documentation required per shipment, including any potable-service certification
- Delivery province and site receiving arrangements
- Current water or effluent analysis, including alkalinity, pH and temperature range
- The incumbent product and dose, if you are replacing or second-sourcing one
- Sludge handling and disposal route, since coagulant choice changes both
- Dilute treatment solutions are largely water by weight, so freight distance, delivery format and discharge arrangements move landed cost as much as the chemical price does. Quotations are compared delivered to your plant, not ex-works.
- Whatever is dosed has to be measured. Confirm which residual, index or coupon test the programme is controlled against, and that your team has the instruments and reagents to run it, before the chemistry is changed.
Technical & procurement detail
Where ferrous sulfate is used+
Ferrous sulfate is an iron salt used as a coagulant and reducing agent in water and wastewater treatment. Hydrate form and grade vary by supply option and are confirmed at quotation.
Application areas are quoted separately+
Municipal water, industrial process water, wastewater, boiler and cooling water, reverse osmosis and swimming pool applications are treated as distinct specifications. Products supplied for one of these duties are not presented as interchangeable with another. State the intended application in your enquiry so the correct specification is reviewed with the supplier.
How specifications are confirmed+
Allzone does not publish assumed purity, concentration, active content, packaging, origin, certification or regulatory approval values. The grade, specification and documentation are confirmed in writing against supplier technical data sheets and safety data sheets before an order is placed. Request the technical data sheet and safety data sheet for the exact grade under consideration.
Frequently asked questions
What grade of ferrous sulfate do you supply?+
The grade and specification are confirmed at quotation against the supplier technical data sheet. No purity, concentration or certification value is published in advance.
Can I request a technical data sheet and a safety data sheet?+
Yes. Both the supplier technical data sheet and the safety data sheet for the quoted grade are provided on request and should be reviewed before purchase and use.
Do you deliver ferrous sulfate across Ontario and Quebec?+
Yes. Freight is arranged across Toronto, the GTA, Ontario, Quebec and Western Canada, and the delivery method is confirmed with the quotation.
What quantities can you supply?+
Quantities are reviewed per enquiry, from smaller lots to container loads.
Technical knowledge for Ferrous Sulfate Supplier — Ontario & Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Comparison Articles
Related products
Materials commonly quoted alongside Ferrous Sulfate by the same plants.

Poly Aluminium Chloride (PAC)
Coagulant / flocculant — municipal drinking water clarification

Ferric Sulfate
Coagulant / flocculant — drinking water and wastewater coagulation
Need a quote on Ferrous Sulfate?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.


