Ferrous sulfate monohydrate
Ferrous sulfate monohydrate
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Ferrous Sulfate Monohydrate (FeSO₄·H₂O) 17375-41-6

Model NO. Ferrous sulfate monohydrate
CAS No. 17375-41-6
Formula FeSO₄·H₂O
Payment L/C, T/T, D/P, D/A, etc.
Production capacity 20000 t/y
Customization Available
Certification CE, RoHS, ISO, SGS, Halal
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Overview

XRD Chemical is a professional Ferrous Sulfate Monohydrate manufacturer and supplier in China, offering high-purity FeSO₄·H₂O powder and granules (91% min) for animal feed, water treatment, cement, and industrial applications.

Ferrous sulfate monohydrate is a gray to off-white crystalline powder with a molecular weight of 169.93 g/mol. It is obtained primarily as a byproduct of titanium dioxide production via the sulfate process and from steel pickling operations, making it a cost-effective and sustainable iron source . The monohydrate form offers higher iron content and better storage stability compared to the heptahydrate form .

The primary application of ferrous sulfate monohydrate is as an iron supplement in animal feed to prevent iron deficiency anemia in livestock, especially piglets and poultry . It is also widely used as a coagulant and flocculant in water and wastewater treatment for phosphate removal and heavy metal precipitation . In the construction industry, it serves as a chromium reducer in cement to lower hexavalent chromium content . Additional uses include iron oxide pigment production, soil amendment and fertilizer application, and as a precursor for synthesizing lithium iron phosphate cathode material for batteries .

Why Choose XRD Ferrous Sulfate Monohydrate:

• 91% FeSO₄·H₂O purity, 30% iron content — higher than heptahydrate grade
• Gray to off-white powder or granular form, free-flowing
• Feed grade for animal nutrition — prevents iron deficiency in livestock
• Effective for phosphate removal and heavy metal precipitation in water treatment
• Chromium reducer for cement — lowers Cr(VI) content
• Also suitable for fertilizers, pigments, and battery precursors
• Free samples available for evaluation
• COA and MSDS documents available for download

Details

HS Code 2833.29
Synonym Iron(II) sulfate monohydrate, Dried ferrous sulfate, Ferrous sulphate 1-hydrate
Forms Available Off-white to buff-colored powder, Granular form (for industrial applications)
Density 2.97 g/cm³ (solid), 1.2-1.5 g/cm³ (bulk density)
Purity Feed Grade (≥91% FeSO₄, heavy metals controlled), Pharmaceutical Grade (USP/EP compliance, ≥97%), Technical Grade (≥93%, for industrial use)
Molecular Weight 169.93 g/mol
Appearance Fine hygroscopic powder, Pale yellow to grayish-white color, No visible impurities (pharmaceutical grade)
Grades Feed grade (for animal nutrition), Technical grade (industrial use), Pharmaceutical grade (USP/EP standards)
Packing Options 25KG, Big bags, Palletizing, Customization

Applications

AgricultureMiningWater TreatmentIndustrial ProcessesAnimal NutritionMedical

FAQ

Q What is Ferrous Sulfate Monohydrate?

Ferrous Sulfate Monohydrate (FeSO₄·H₂O) is a gray to off-white crystalline powder with a molecular weight of 169.93 g/mol. It contains approximately 30% iron and is primarily obtained as a byproduct of titanium dioxide production or from steel pickling operations. The monohydrate form has higher iron content and better storage stability than the heptahydrate form.

Q What is the difference between ferrous sulfate monohydrate and heptahydrate?

Ferrous sulfate monohydrate (FeSO₄·H₂O) contains one water molecule and has 30% iron content, making it more concentrated. Ferrous sulfate heptahydrate (FeSO₄·7H₂O) contains seven water molecules and has only 19-20% iron content. Monohydrate has better storage stability and is preferred for feed and industrial applications, while heptahydrate is more commonly used in water treatment where rapid dissolution is needed.

Q How is ferrous sulfate monohydrate used in animal feed?

Ferrous sulfate monohydrate is the most commonly used iron source in animal feed due to its high bioavailability. It prevents iron deficiency anemia in piglets, poultry, and other livestock, promoting healthy growth and improving feed conversion ratios. It is typically added to premixes and compound feeds at controlled dosage rates according to species-specific nutritional requirements.

Q How does ferrous sulfate monohydrate work in water treatment?

In water treatment, ferrous sulfate monohydrate serves as a coagulant for removing phosphates from wastewater and as a precipitant for heavy metals including chromium, cadmium, and lead. The ferrous iron oxidizes to ferric iron in aerated water, forming iron hydroxide flocs that adsorb and settle out contaminants. It is widely used in municipal and industrial wastewater treatment plants for phosphorus removal to meet discharge regulations.

Q How does ferrous sulfate monohydrate reduce chromium in cement?

Ferrous sulfate monohydrate is the most widely used chromium reducer in cement. Hexavalent chromium Cr(VI), which is water-soluble and can cause allergic contact dermatitis, is reduced to trivalent chromium Cr(III) by the ferrous iron. Cr(III) is insoluble and non-toxic. Adding ferrous sulfate at 0.2-1.0% by weight of cement effectively reduces Cr(VI) levels below the 2 ppm regulatory limit required in many countries.

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