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FCO Registered Mineral Category

Zinc Sulphate Monohydrate

Premium micronutrient containing high-purity Zinc and Sulphur, critical for enzyme synthesis, chlorophyll formation, and hormone regulation in crops.

Soil BroadcastingFoliar FertigationNPK Dry BlendingDrip Systems
Zinc Sulphate Monohydrate - Photo 1
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Chemical Formula

ZnSO4 · H2O

CAS Registry Number

7446-19-7

Manufacturing Standard

FCO 1985 Schedule I · ISO 9001
DIRECT COMPARISON MATRIX

Compare Available Zinc Sulphate Monohydrate Grades

Compare chemical assay, physical form, and application methods side-by-side to choose the right spec for your facility.

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Grade / SpecificationActive Element AssayPhysical FormPrimary ApplicationStandard PackagingSourcing Action
Zinc Sulphate Monohydrate 21% (Soil Grade)CAS: 7446-19-7
21.0% min Zinc (as Zn), 10.0% min Sulphur (as S)Granular (2-4mm)Basal application, general soil broadcasting, bulk blending with NPK.25 kg / 50 kg HDPE bags with linerView Specs & COA
Zinc Sulphate Monohydrate 24% (Standard Grade)CAS: 7446-19-7
24.0% min Zinc (as Zn), 11.5% min Sulphur (as S)Ultra-Fine PowderSoil application in zinc-deficient areas, blending for custom micronutrient mixtures.25 kg / 50 kg HDPE bags with linerView Specs & COA
Zinc Sulphate Monohydrate 28% (Premium Soil Grade)CAS: 7446-19-7
28.0% min Zinc (as Zn), 13.0% min Sulphur (as S)Granular (2-4mm)Intensive horticultural farming, high-yield grain crops, and complex NPK compound coating.25 kg / 50 kg HDPE bags / Jumbo bagsView Specs & COA
Zinc Sulphate Monohydrate 30% (High Analysis Grade)CAS: 7446-19-7
30.0% min Zinc (as Zn), 14.0% min Sulphur (as S)Ultra-Fine PowderPremium blending, export-focused fertilizer formulations, and specialty drip irrigation.25 kg / 50 kg HDPE bags / Jumbo bagsView Specs & COA
Zinc Sulphate Monohydrate 33% (Foliar & Drip Grade)CAS: 7446-19-7
33.0% min Zinc (as Zn), 15.0% min Sulphur (as S)Ultra-Fine PowderFoliar spray, drip irrigation, fertigation, and high-purity chemical processing.25 kg bags with thick inner linear, 1000 kg Jumbo BagsView Specs & COA

Technical Spec Sheets & Lab Profiles

Click into any grade profile below for spectrometry analysis curves, heavy-metal breakdown, and container packing limits.

Zinc Sulphate Monohydrate 21% (Soil Grade)
21%Assay: 21.0% min Zinc (as Zn), 10.0% min Sulphur (as S)

Zinc Sulphate Monohydrate 21% (Soil Grade)

Basal application, general soil broadcasting, bulk blending with NPK.

Packaging:25 kg / 50 kg HDPE bags with liner
Application:8 to 10 kg per acre during land preparation or basal dressing.
Zinc Sulphate Monohydrate 24% (Standard Grade)
24%Assay: 24.0% min Zinc (as Zn), 11.5% min Sulphur (as S)

Zinc Sulphate Monohydrate 24% (Standard Grade)

Soil application in zinc-deficient areas, blending for custom micronutrient mixtures.

Packaging:25 kg / 50 kg HDPE bags with liner
Application:7 to 8 kg per acre depending on soil deficiency.
Zinc Sulphate Monohydrate 28% (Premium Soil Grade)
28%Assay: 28.0% min Zinc (as Zn), 13.0% min Sulphur (as S)

Zinc Sulphate Monohydrate 28% (Premium Soil Grade)

Intensive horticultural farming, high-yield grain crops, and complex NPK compound coating.

Packaging:25 kg / 50 kg HDPE bags / Jumbo bags
Application:6 to 8 kg per acre as a basal application or top dressing.
Zinc Sulphate Monohydrate 30% (High Analysis Grade)
30%Assay: 30.0% min Zinc (as Zn), 14.0% min Sulphur (as S)

Zinc Sulphate Monohydrate 30% (High Analysis Grade)

Premium blending, export-focused fertilizer formulations, and specialty drip irrigation.

Packaging:25 kg / 50 kg HDPE bags / Jumbo bags
Application:5 to 6 kg per acre or through fertigational drip setup (consult agronomist).
Zinc Sulphate Monohydrate 33% (Foliar & Drip Grade)
33%Assay: 33.0% min Zinc (as Zn), 15.0% min Sulphur (as S)

Zinc Sulphate Monohydrate 33% (Foliar & Drip Grade)

Foliar spray, drip irrigation, fertigation, and high-purity chemical processing.

Packaging:25 kg bags with thick inner linear, 1000 kg Jumbo Bags
Application:Foliar Spray: Dissolve 3-5g of 33% Zinc per liter of water. Spray during active vegetative growth.
Procurement Guidance

Frequently Asked Questions

Zinc Sulphate 21% contains 21% elemental zinc in a free-flowing granular format engineered for basal soil broadcasting and automated NPK blending. Zinc Sulphate 33% is a concentrated, ultra-fine water-soluble monohydrate powder designed specifically for drip fertigation and foliar spraying with zero nozzle clogging.

Yes, every production run and shipping batch is tested via in-house Atomic Absorption Spectroscopy (AAS). A detailed COA certifying active assay percentage and heavy metals (Lead < 10ppm, Cadmium < 5ppm, Arsenic < 2ppm) is provided with every shipment.

We offer standard 25 kg bags, 50 kg HDPE bags, and 1000 kg (1 MT) jumbo bags with moisture-proof inner poly liners. Custom brand markings and palletized container stuffing are available for recurring commercial contracts.

Direct Factory Pricing

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