Zinc Sulfate Monohydrate
- Appearance: White powder
- Chemical Formula: ZnSO4·H2O
- CAS No.: 7446-19-7
- Zinc Sulfate Monohydrate (ZnSO4·H2O): > 98%
- Zinc (Zn): > 35%
- Sulfur (S): > 17%
- Water Solubility: 100%
- Water-Insoluble Matter: < 0.05%
- Moisture: < 1.0%
- pH: 4.0-6.0 (1% solution)
Reference price range:USD 1140 - 1540
Zinc Sulfate Monohydrate
Premium agricultural Zinc Sulfate Monohydrate: high-analysis Zn/S raw material for fast zinc supply and professional fertilizer formulation
Ihumate Zinc Sulfate Monohydrate (ZnSO4·H2O, CAS 7446-19-7) is a high-purity, fully water-soluble agricultural zinc-sulfur fertilizer raw material with ZnSO4·H2O > 98%, zinc (Zn) > 35% and sulfur (S) > 17%. The white powder grade is designed for water-soluble fertilizers, compound fertilizers, granulated fertilizers, foliar products, fertigation products, seed treatment and micronutrient premix production.
1. High-analysis zinc supply: zinc supports auxin formation, enzyme activity, internode development, pollen viability, root growth and early fruit development.
2. Dual Zn/S nutrition: zinc improves shoot, leaf and root growth, while sulfur supports amino acids, proteins, oils, flavor compounds and stress metabolism.
3. Built for fertilizer factories: it can be used in NPK, WSF, compound fertilizers, granules, humic acid, amino acid, seaweed and micronutrient systems as a reliable Zn/S module.
4. The Ihumate advantage: batch control covers assay, Zn, sulfur, insoluble matter, moisture, pH, appearance and dissolution performance, backed by COA, SDS, export documents, dependable supply, formulation support and OEM/ODM packaging.
Compatibility note: avoid direct concentrated mixing with phosphates, carbonates and strong alkaline materials. With calcium fertilizers, phosphate fertilizers or pesticides, run a jar test and use A/B tanks where needed.
Zinc Sulfate Monohydrate Specifications
| Technical Parameters | Detailed Specs | Testing Methods | Reference Standards |
|---|---|---|---|
| Appearance | White powder | Visual inspection | - |
| Chemical Formula | ZnSO4·H2O | - | - |
| CAS No. | 7446-19-7 | - | - |
| Zinc Sulfate Monohydrate (ZnSO4·H2O) | > 98% | EDTA titration | - |
| Zinc (Zn) | > 35% | EDTA titration | - |
| Sulfur (S) | > 17% | Calculated value | - |
| Water Solubility | 100% | Visual and gravimetric method | - |
| Water-Insoluble Matter | < 0.05% | Gravimetric method | - |
| Moisture | < 1.0% | Oven drying | - |
| pH | 4.0-6.0 (1% solution) | pH meter | - |
Agricultural Zinc Sulfate Monohydrate - Product Introduction Video
- Premium agricultural Zinc Sulfate Monohydrate white powder
- Solubility, particle size and OEM packaging presentation
COA, TDS, MSDS & HM Test Reports
Certificate of Analysis (COA)
Certificate of Analysis: Zinc Sulfate Monohydrate
Technical Data Sheet (TDS)
TDS: Zinc Sulfate Monohydrate
Safety Data Sheet (MSDS)
MSDS: Zinc Sulfate Monohydrate
Heavy Metal Test Report
Heavy Metal Test Report: Zinc Sulfate Monohydrate
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Frequently Asked Questions
1
What is Zinc Sulfate Monohydrate used for in agriculture?
It supplies zinc and sulfur for deficiency correction, WSF, compound fertilizer, granulation, foliar feeding, fertigation, seed treatment and micronutrient premixes.
2
How is zinc sulfate different from EDTA zinc?
Zinc sulfate is high-analysis and cost-efficient for field use and fertilizer manufacturing. EDTA zinc is more stable in precision fertigation and micronutrient correction programs.
3
Which crops often need zinc?
Corn, rice, wheat, citrus, grapes, apple, cotton, potato, legumes and vegetables often need zinc, especially in alkaline soils, high-phosphorus soils, sandy soils or cold wet conditions.
4
Can it be used for foliar feeding?
Yes where local labels allow it. Use low concentrations, spray in the morning or evening, avoid heat and intense light, and test compatibility and crop safety first.
5
Do the packaging-image specifications apply?
No. Packaging images show Ihumate bag formats and OEM/ODM capability only. Final guaranteed analysis, net weight and regulatory text follow the contract, batch COA, SDS and destination-market requirements.
6
Are you a trading company or a manufacturer?
We are a professional manufacturing enterprise. Our modern factory is located in Huozhou, Linfen, Shanxi, China. With an annual capacity of 500,000 tons, we invite global partners to visit our facility.
7
How do you perform quality control?
8
Do you provide samples?
9
What are the payment terms?
10
How can I track my shipment after payment?
11
What is the Minimum Order Quantity (MOQ)?
12
Can you customize packaging or print our logo?
13
How long is the delivery time?
More questions about our products?
Application & Dosage: Zinc Sulfate Monohydrate
For WSF, compound fertilizers, granulated fertilizers, foliar products, fertigation products, seed treatment, soil zinc supply and Zn/S premixes. Count ZnSO4·H2O, Zn and S in formulation calculations and adjust from soil pH, available phosphorus, tissue analysis and registration requirements.
Fertilizer Manufacturing
- Zn/S Raw-Material Module:Calculate inclusion from ZnSO4·H2O > 98%, Zn > 35% and S > 17% for NPK, WSF, compound, granulated and liquid fertilizers.
- Compatibility Control:Validate water quality, pH, phosphates, carbonates, calcium salts, alkaline materials and storage stability; use A/B tanks for concentrated stocks where needed.
Agricultural Application
- Root-Zone Zinc Supply:Split applications during seedling, new flush, pre-flowering and early fruit stages according to soil pH, available P, EC and tissue analysis.
- Fast Foliar Correction:Spray low concentrations at early zinc deficiency; avoid heat and intense light, and jar-test mixes with pesticides or micronutrients.
Application Ratio Scheme
| Crop Name | Growth Stage | Application Ratio |
|---|---|---|
| Fertilizer formulation | WSF, compound, granulated or liquid fertilizer | Calculate from Zn > 35%, S > 17% and target guaranteed analysis |
| Fertigation/Soil drench | Seedling, new flush or zinc-deficiency correction | 2-8 kg/ha per application; adjust by analysis |
| Foliar spray | Early zinc deficiency, pre-flowering or early fruit stage | 0.1%-0.3%; test crop safety first |
| Seed treatment/Soil use | Before sowing or base fertilizer formula | Follow crop, soil testing and local label directions |
Product Advantages: Zinc Sulfate Monohydrate
Ihumate Zinc Sulfate Monohydrate delivers high-analysis zinc and sulfur, clean solubility and stable batch management for professional fertilizer manufacturers.
1
High-Analysis Zinc Source
ZnSO4·H2O > 98% and Zn > 35% support zinc-deficiency correction and high-quality zinc fertilizer formulas.
2
Dual Zinc and Sulfur Nutrition
Zinc supports auxin, enzyme activity, pollen viability and roots; sulfur supports proteins, oils, flavor and stress-related metabolism.
3
Suitable for Large-Scale Formulas
Works in NPK, WSF, compound fertilizer, granulation, foliar, fertigation and micronutrient premix systems.
4
Ihumate Export and OEM Support
Batch COA, SDS, export documents, reliable supply, formulation advice and 1-25 kg OEM/ODM packaging are available.
Certifications: Zinc Sulfate Monohydrate
Ihumate is backed by globally recognized certifications.
- 🏅 OMRI Listed – Approved for organic use (USDA/NOP standards)
- 🏅 CERES Certified – High-standard organic inputs for sustainable agriculture
- ✔ Excellent international production process with full batch traceability
- ✔ Meeting the strict demands of global distributors and formulators
Ihumate Global Exhibition Videos
We showcase our Humic Acid, Seaweed, Liquid Fertilizer, and Bio-control series globally.
Join us at our 2026 exhibitions:
Event: Shanghai CAC (Fshow)
Booth: 12G05
Date: March 17-19, 2026
Address: No. 333 Songze Avenue, Qingpu District, Shanghai
Join us at our 2026 exhibitions:
Event: Shanghai CAC (Fshow)
Booth: 12G05
Date: March 17-19, 2026
Address: No. 333 Songze Avenue, Qingpu District, Shanghai
No. 64 Nangou, Chencun, Bailong Town, Huozhou City, Linfen City, Shanxi Province
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