Zinc Sulphate Heptahydrate Manufacturer & Reliable Supplier in China
Zinc Sulphate Heptahydrate (ZnSO₄·7H₂O) is a white crystalline powder widely used in fertilizers, animal feed, industrial manufacturing, water treatment, and micronutrient formulations.
We supply high-purity agricultural grade, feed grade and industrial grade Zinc Sulphate Heptahydrate with stable quality, competitive price and fast delivery to more than 60 countries.
As a leading Zinc Sulphate Heptahydrate manufacturer and exporter in China, we strictly follow ISO and FAMI-QS quality standards, providing COA, MSDS, SGS certification and customized packing options.
Key Advantages
• High purity & stable quality
• Suitable for fertilizer, feed and industrial applications
• Free-flowing crystalline granules or powder
• Fast shipment from Chinese main ports
•OEM packing available (25kg bags / jumbo bags)
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General product information
| Place of Origin: | China |
| Brand Name: | Willdo |
| Model Grade: | Feed grade/Fertilizer grade/ Industrial grade |
| Certification: | Fami-QS. ISO9001.FDA.SGS |
| CAS NO.: | 7446-20-0 |
| Appearance： | White Crystalline powder /Granular |
| Minimum Order Quantity: | 20MTS/20’FCL |
| Packaging Details: | 25kg/22.68kg/50kg bags 46 x 50lb Bags 1000kg/1050kg/1250kg/ bulk bags 1 x 1050kg Totes Customized bags as per customer’s requirement |
| Delivery Time: | within 20~30 days after confirming the order. |
| Payment Terms: | TT / LC |
| Supply Ability: | 1000 Tons/Month |
| Sample： | Available And Free |
Applications of Zinc Sulphate Heptahydrate
1. Fertilizer Industry
Used as a micronutrient in NPK fertilizer blends and soil conditioners. Helps correct zinc deficiency in crops such as corn, rice, wheat and fruit trees.
2. Animal Feed Additive
Provides essential zinc for livestock and poultry, improving immunity, growth performance and enzyme activities.
3. Industrial Applications
Used in:
• Electroplating
• Dye and pigment production
• Water purification
• Zinc salt manufacturing
4. Other Uses
• Leather treatment
• Preservatives
• Textile auxiliary chemicals
Customers Also View:
Copper Sulphate – Feed, Fertilizer and Industrial Applications Copper Sulphate
Sodium Bicarbonate – Electrolyte Balance for Feed Formulation Sodium Bicarbonate
Manganese Sulphate Monohydrate – Cost-Effective Mn Source manganese sulphate mono
❓FAQ— Zinc Sulphate Heptahydrate
1. What is the difference between Zinc Sulphate Heptahydrate and Monohydrate?
Answer:
Zinc Sulphate Heptahydrate contains seven water molecules, while Monohydrate contains only one.
• Heptahydrate has lower zinc content (~21%)
• Monohydrate has higher zinc content (~33%)
Heptahydrate is mainly used in fertilizers and feed due to its lower cost and easy solubility.
2. What is your typical Zinc content for Heptahydrate?
Answer:
Our Zinc Sulphate Heptahydrate contains minimum 21% Zn, meeting agricultural and feed-grade standards.
Higher-purity grades can be supplied upon request.
3. Do you provide COA, MSDS, SGS or sample test reports?
Answer:
Yes, we provide COA, MSDS, SGS, CIQ, and other third-party test reports.
Samples are available before bulk order.
4. What are the packing options?
Answer:
• 25kg PP bags
• 50kg bags
• 1000kg jumbo bags
• Customized OEM packing with your logo
All packing is moisture-proof and suitable for long-distance sea freight.
5. Can you ship Zinc Sulphate to South America / Africa / Middle East / Europe?
Answer:
Absolutely. We regularly export to:
Brazil, Chile, Mexico, Turkey, South Africa, Egypt, UAE, Vietnam, Thailand, EU markets, and many more.
We handle all export documentation.
6. Is your Zinc Sulphate Heptahydrate suitable for fertilizer production?
Answer:
Yes. It is widely used in NPK compound fertilizers, water-soluble fertilizers, and zinc micronutrient formulations.
We supply both powder and granular forms.
7. Do you offer feed-grade Zinc Sulphate Heptahydrate?
Answer:
Yes. Our feed-grade product meets FAMI-QS and international feed additive standards, ensuring safety and low heavy metal
8. How long is your delivery time?
Answer:
• 7–10 days for regular orders
• 10–15 days for customized packing
We maintain stable stock and production capacity all year.
9. What is the minimum order quantity (MOQ)?
Answer:
MOQ is 1 ton, but we also support mixed-container shipping with other sulfate products.
10. Do you offer free samples?
Answer:
Yes. We provide 500g–1kg free samples, with shipping cost paid by the buyer or refunded after official order.
Specification
| ormula | ZnSO4·7H2O |
| Purity: | 98% |
| Zn: | 22%min， |
| Pb: | 15ppm max |
| Cd: | 15ppm max |
| As: | 5ppm max |
| Insoluble: | 0.05% max |
| Size： | Granules 1-2mm,2-4mm |
WHY CHOOSE US
Reliable
We have handled chemical.additives for more than 20 years.And enjoy good reputation in the world market for our good quality and reasonable prices.A partner you can trust.
Rich resources
We have two factories which is specialized in zinc sulphate and manganese sulphate.Over 100000tons per year.Ensure sufficient supply for customers
A wide range of products
We are familiar with the domestinc raw material market and are involved in the business of ferrous sulfate,copper sulfate ammonium sulfate,and all Sulphate salts.
Strong communication skills and service ethic
As the agent of factory,our team have same expertise as the factory but stronger communication skills to improve the efficiency of negotiations.
