Zinc Sulfate is a food-grade inorganic zinc salt providing a cost-effective, bioavailable zinc source for food fortification, supplements and pharmaceutical applications.We supply bulk Zinc Sulfate sourced from leading China manufacturers, available in powder and granular forms for global food and beverage producers. Our Zinc Sulfate is widely used in capsules, beverage fortification, oral rehydration salts, infant formula mineral source and agricultural zinc micronutrient.
Zinc Sulfate (ZnSO₄·7H₂O or ZnSO₄·H₂O) is produced by reacting zinc with sulfuric acid.
It provides 22-36% elemental zinc (depending on hydrate) and is one of the most cost-effective and widely used zinc fortification sources. Used in supplements, food and beverage fortification, oral rehydration salts and agricultural micronutrient sprays.
Grades / Types Available: Food Grade, Feed Grade
| Item | Specification |
|---|---|
| Appearance | White crystalline granules |
| Assay | ≥ 99.0% |
| Zinc Content | ≥ 22% (heptahydrate) / ≥ 36% (monohydrate) |
| Loss on Drying | Per hydrate spec |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 3 mg/kg |
| Grade | Monohydrate |
| Purity (Monohydrate) | 99.0-100.5% |
| Alkali metal | ≦0.5% |
| Acidity | Pass test |
| Selenium | ≦0.003% |
| Mercury | ≦0.0001% |
| Lead | ≦0.0004% |
| Cadmium | ≦0.0002% |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Zinc Sulfate with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.