Founded in 2016, Zibo Dingqi Chemicals Co., LTD., headquartered in Zibo, Shandong, China, is a professional manufacturer of various water treatment chemicals, specializing in African countries to provide drinking water resources treatment, sewage treatment and other projects, currently serving more than 30 countries around the world 600+ customers.
At present, the main products are aluminum sulfate, ammonium alum, polyaluminum chloride, polyacrylamide, ferrous sulfate and other five series of pharmaceutical products.
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![Water Treatment Ferrous Sulfate]()
Water Treatment Ferrous Sulfate●Certificate:WHO drinking water standards/ISO/ GCC certification/ASEAN standards. ●MOQ:25MT. ●use:water treatment -
![Industrial Grade Ferrous Sulfate]()
Industrial Grade Ferrous SulfateThe content requirements for ferrous sulfate (FeSO₄·7H₂O) vary depending on the application field.
Why Choose us
Our Certifications
Our products have obtained ISO triple-system certification, ensuring compliance with international quality management standards.
Well-Experienced Team
We have successfully served over 300 customers across various industries worldwide, demonstrating our extensive experience and expertise in the field.
24-Hour Online Service
We provide prompt fault response and comprehensive technical support. Additionally, we have established regional service teams (e.g., local engineers in Southeast Asia) and are committed to an emergency response time of 24-48 hours to ensure customer satisfaction.
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Chemical formula |
FeSO4 |
|
Molar mass |
151.91 g/mol (anhydrous) 169.93 g/mol (monohydrate) 241.99 g/mol (pentahydrate) 260.00 g/mol (hexahydrate) 278.02 g/mol (heptahydrate) |
|
Appearance |
White crystals (anhydrous) White-yellow crystals (monohydrate) Blue-green crystals (heptahydrate) |
|
Density |
3.65 g/cm3 (anhydrous) 3 g/cm3 (monohydrate) 2.15 g/cm3 (pentahydrate) 1.934 g/cm3 (hexahydrate) 1.895 g/cm3 (heptahydrate) |
|
Melting point |
680 °C (1,256 °F; 953 K) (anhydrous) decomposes 300 °C (572 °F; 573 K) (monohydrate) decomposes 60–64 °C (140–147 °F; 333–337 K) (heptahydrate) decomposes |
|
Solubility in water |
Monohydrate: 44.69 g/100 mL (77 °C), 35.97 g/100 mL (90.1 °C) Heptahydrate: 15.65 g/100 mL (0 °C), 20.5 g/100 mL (10 °C), 29.51 g/100 mL (25 °C), 39.89 g/100 mL (40.1 °C), 51.35 g/100 mL (54 °C) |
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Solubility |
Negligible in alcohol |
|
Magnetic susceptibility (χ) |
1.24×10−2 cm3 /mol (anhydrous) 1.05×10−2 cm3 /mol (monohydrate) 1.12×10−2 cm3 /mol (heptahydrate) +10 200×10−6 cm3 /mol |
|
Refractive index(nD) |
1.591 (monohydrate) 1.526–1.528 (21 °C, tetrahydrate) 1.513–1.515 (pentahydrate) 1.468 (hexahydrate) 1.471 (heptahydrate) |
|
Std enthalpy of formation (ΔfH⦵298) |
−928.4 kJ/mol (anhydrous) −3016 kJ/mol (heptahydrate) |
The Integral Role of Ferrous Sulfate in Water Treatment
Coagulation and Clarification
In water treatment facilities, one of the first steps in purifying water is coagulation, a process that involves neutralising charged particles to allow their aggregation. Ferrous Sulphate, with its positive charge, serves as an effective coagulant. It binds with negatively charged particles suspended in water, forming larger, denser aggregates known as flocs. These flocs then settle down due to their increased weight, allowing for easy removal. The result is significantly clearer water.
Phosphate Removal
Phosphates in wastewater are a major concern as they can cause eutrophication, a process that leads to excessive growth of algae and other aquatic plants when the wastewater is discharged into natural bodies of water. The rapid growth can cause oxygen depletion in the water, resulting in the loss of aquatic life. Ferrous Sulphate plays a vital role in mitigating this problem. When added to wastewater, it reacts with phosphorus to form insoluble iron phosphates, which can then be easily removed.
Production Process of Ferrous Sulfate
Steel Pickling Method
Raw Materials: Steel pickling waste liquid (containing sulfuric acid and ferrous sulfate).
Process: After steel pickling, the waste liquid is concentrated, crystallized, separated, and dried to obtain ferrous sulfate.
Reaction: Fe + H₂SO₄ → FeSO₄ + H₂↑
By-product of Titanium Dioxide Production
Raw Materials: Waste liquid from the reaction of ilmenite (FeTiO₃) with sulfuric acid.
Process: The waste liquid is cooled, crystallized, separated, and dried to obtain ferrous sulfate.
Reaction: FeTiO₃ + 2H₂SO₄ → FeSO₄ + TiOSO₄ + 2H₂O
Reaction of Iron Scraps with Sulfuric Acid
Raw Materials: Iron scraps and sulfuric acid.
Process: Iron scraps react with sulfuric acid to produce a ferrous sulfate solution, which is then concentrated, crystallized, separated, and dried to obtain the final product.
Reaction: Fe + H₂SO₄ → FeSO₄ + H₂↑
Ferrous Sulfate Safe Storage and Handling
Store and label all chemical products in accordance with the instructions on the safety sheet. Chemicals must normally be stored in their original packaging. If you need smaller amounts of this chemical, the new packaging must be suitable for the substance.
Do not store chemicals together with inflammable material and gas cylinders.
Store chemical containers with closed lids when they are not in use.
Equipment for handling and cleaning up spillage must be in readiness and suitable for the stored chemicals. In addition, it is suitable to have equipment placed outside the chemical store.
It is important for the fire classification of storage lockers and rooms to match the types and amounts of chemicals stored therein.
Store combustible material in fireproof cupboards or in separate spaces.
Use personal protection equipment (e.g., gloves, face mask) where necessary.
Handle surplus chemicals and hazardous waste in accordance with the information in the safety data sheet.
Ensure First Aid equipment is readily available.
Clean workplaces regularly. Moreover, there must not be chemical spills on the floor.
Delivery Information
Shipping Methods
We offer a variety of shipping options, including sea freight, railway transportation, and international express delivery, to meet the diverse needs of our customers.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
Certificate
FAQ
Zibo Dingqi Chemicals Co., Ltd. is one of the most professional ferrous sulfate manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to wholesale high-grade ferrous sulfate from our factory.
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