Good Quality Wholesale Powder 0.1-3mm Feed-Grade Free Sample Zinc Sulfate Monohydrate
Zinc Sulfate Monohydrate, chemically named zinc sulfate monohydrate, has the molecular formula ZnSO4·H2O and CAS No. 7446-19-7. It is a low water-of-crystallization sulfate compound with a stable crystal structure. Its appearance is white to off-white crystalline powder or regular granules, with a particle size that can be controlled between 0.1-3mm as required. At 20ºC, its water solubility reaches 54g/100mL, and the pH value of its 1% concentration aqueous solution ranges from 4.0 to 6.0 (weakly acidic) with no pungent odor. Its core advantage lies in significantly lower hygroscopicity than zinc sulfate heptahydrate (moisture absorption rate <3% under an equilibrium humidity of 60%), which prevents caking during storage and facilitates industrial metering and feeding.
| Item |
Indicator |
| Purity (as ZnSO4·H2O) |
≥ 98.0% |
| Zinc Content (as Zn) |
≥ 35.7% |
| Insoluble Matter |
≤ 0.02% |
| pH Value (50g/L solution) |
4.0 - 5.0 |
| Chlorides (as Cl) |
≤ 0.20% |
| Heavy Metals (as Pb) |
≤ 0.002% |
| Iron (Fe) Content |
≤ 0.008% |
| Manganese (Mn) Content |
≤ 0.01% |
- Industrial-grade Zinc Sulfate Monohydrate: ZnSO4 content ≥98%, with impurities strictly controlled (Fe≤0.005%, Pb≤0.0005), complying with GB/T 23380-2009. It is mainly used in the galvanizing industry (as the main salt in electroplating solutions to improve the uniformity and adhesion of coatings) and the coating industry (as a raw material for rust inhibitors to enhance the corrosion resistance of coatings).
- Agricultural-grade Zinc Sulfate Monohydrate: ZnSO4 content ≥95%, meeting HG/T 3277-2012. As a zinc fertilizer, it is suitable for crops such as corn, citrus, and rice to prevent zinc deficiency issues like leaf yellowing and small fruits. It can also be used to supplement zinc in aquaculture water to promote the growth of fish and shrimp.
- Food-grade Zinc Sulfate Monohydrate: ZnSO4 content ≥99%, conforming to GB 14880-2012. It is applied in food nutrition fortification (e.g., adding zinc to grains and dairy products) and as a raw material for health supplements.
Packaging
25kg bag/50kg bag---27tons/1FCL without pallet
1000kg bag---25tons/1FCL without pallet
Loading and transportation
We have long-term and stable cooperation with shipping companies such as MSC, MSK, MCC, SITC, TSL, OOCL, COSCO and WANHAI, ensuring safe, fast and timely delivery to 278 customers from 58 countries and regions to their countries.
Our Warehouse
We have 4 warehouses in China to ensure the lowest cost delivery to our customers.


Shandong Jiuchong Chemical Co.,Ltd. was located in Weifang City, Shandong Province, China. Since 2010, we have served 278 customers from 58 countries and regions, winning their trust in terms of price, product quality, and delivery time.
We meet the demands of global industry and agriculture by providing high-quality and environmentally friendly chemicals, helping to improve the quality of life for the world's population. The mission of Jiuchong is to become the preferred supplier of chemical products for customers, create sustainable value for consumers and partners, and achieve the overall happiness of employees.
Jiuchong Chemical is a professional chemical company specializing in the production and sale of sulfates, carbonates, chlorides, water treatment chemicals and nitrogen fertilizers. It has 16 years of OEM production experience in China.
We mainly supply magnesium sulphate, with an annual production capacity of 80,000 tons; as well as sodium bicarbonate, calcium chloride, magnesium chloride, water treatment chemicals and nitrogen fertilizer with production capacities of 100,000 tons each per year. In addition, the range of products is always expending according to customers' needs.
1. Who are we?
We are based in Shandong, China, start from 2016, sell to Domestic Market (50.00%), Southeast Asia (20.00%), South Asia (10.00%), Africa (10.00%), North America (5.00%), South America (5.00%). There are total about 11-50 people in our office
2. How can we guarantee quality?
Always a pre-production sample before mass production.
Always final Inspection before shipment.
3.What can you buy from us?
Magnesium Sulphate, Calcium Chloride, Sodium Metabisulfite, Magnesium Chloride, Aluminum Sulfate
4. Why should you buy from us not from other suppliers?
Annual supply chain capacity over 200,000 ton
Pre-sale and after-sale service
Fast delivery with 15 days
Customized product size and packing
24 hours online service
Stable and qualified supply chain
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU,Express Delivery.
Accepted Payment Currency:USD;
Accepted Payment Type: T/T, L/C,Credit Card.
Language Spoken:English,Chinese