Food minerals

Zinc Sulfate Monohydrate & Heptahydrate – High-Purity Food Grade Zinc Supplement

  • Type Sulfate
  • E No.
  • CAS No. 7446-20-0 / 7446-19-7
  • Qty in 20' FCL 25MTs
  • Packaging 25kg bags

📌 Detailed Introduction of Zinc Sulfate

✔ What is Zinc Sulfate?

Zinc Sulfate is an essential zinc compound used as a food additive and nutritional supplement. It is a highly soluble, bioavailable source of zinc for human and animal nutrition.

Available Forms:

  • Zinc Sulfate Monohydrate (ZnSO₄·H₂O) – CAS 7446-19-7

  • Zinc Sulfate Heptahydrate (ZnSO₄·7H₂O) – CAS 7446-20-0

Both forms are widely used for zinc supplementation in food, beverages, dietary supplements, and animal feed.


Zinc Sulfate Food Grade (Monohydrate & Heptahydrate) – Specifications

Supplied by Jiangsu Khonor Chemicals Co., Limited

PropertyZinc Sulfate Monohydrate (ZnSO₄·H₂O)Zinc Sulfate Heptahydrate (ZnSO₄·7H₂O)
CAS Number7446-19-77446-20-0
AppearanceWhite crystalline powderWhite crystalline powder
Purity (%)≥ 98.0≥ 99.0
Zinc Content (Zn, %)≥ 35.5≥ 22.0
Lead (Pb, ppm)≤ 10≤ 10
Cadmium (Cd, ppm)≤ 1≤ 1
Arsenic (As, ppm)≤ 3≤ 3
pH (5% Solution)4.0 – 6.04.0 – 6.0
SolubilityCompletely soluble in waterCompletely soluble in water
Packing25kg bags or customized25kg bags or customized



📌 Applications of Zinc Sulfate

✔ Food Industry

  • Nutritional Zinc Supplementation – Used in fortified foods, beverages, and dietary supplements to prevent zinc deficiency.

  • Food Processing – Functions as a preservative and stabilizer in food production.

  • Baking & Confectionery – Helps in improving the nutritional profile of baked goods.

✔ Pharmaceutical Industry

  • Zinc-Based Medications – Used in oral zinc supplements and pharmaceutical preparations.

  • Skin & Wound Treatments – Incorporated into ointments and skincare products due to its antibacterial properties.

✔ Animal Nutrition & Feed Additive

  • Essential Micronutrient in Livestock Feed – Ensures proper growth, immune function, and reproduction in poultry, cattle, and aquaculture.

  • Prevention of Zinc Deficiency – Maintains optimal metabolic functions in animals.

✔ Water Treatment & Industrial Uses

  • Water Purification – Used in water treatment plants for removing contaminants and heavy metals.

  • Chemical & Textile Industry – Utilized in dyeing, bleaching, and manufacturing of pigments.


📌 Working Principle of Zinc Sulfate

  1. Zinc Supplementation: Provides essential zinc ions for enzyme functions, metabolism, and immune system support.

  2. Preservative & Stabilizer: Helps in maintaining product shelf life by preventing microbial growth.

  3. Nutritional Absorption: Offers high bioavailability, ensuring effective zinc absorption in food and pharmaceutical applications.

  4. Water Solubility & Reactivity: Readily dissolves in aqueous solutions, making it suitable for various formulations in food, supplements, and industrial processes.


📌 Production Method & Raw Materials

✔ Raw Materials Used:

  • Zinc Ore or Zinc Ash

  • Sulfuric Acid (H₂SO₄)

  • Water (H₂O)

✔ Production Process:

  1. Dissolution: Zinc ore or zinc ash is dissolved in sulfuric acid to form zinc sulfate solution.

  2. Purification: The solution is filtered to remove impurities and unwanted metals.

  3. Crystallization: The purified zinc sulfate solution is evaporated to produce monohydrate or heptahydrate crystals.

  4. Drying & Packaging: The final product is dried and packed in sealed bags to maintain purity.


📌 Famous Zinc Sulfate Brands Worldwide

  • Merck (Germany)

  • Sigma-Aldrich (USA)

  • Thermo Fisher Scientific (USA)

  • Jiangsu Khonor Chemicals Co., Limited (China)


📌 Why Choose Jiangsu Khonor Chemicals Co., Limited?

Premium Food-Grade Zinc Sulfate – High Purity & Bioavailability
Compliant with International Quality Standards (ISO, HACCP, GMP)
Competitive Pricing & Reliable Global Supply Chain
Custom Packaging Options & Fast Shipping


📌 Order High-Quality Zinc Sulfate from Jiangsu Khonor Chemicals Co., Limited Today!

Looking for a trusted supplier of Zinc Sulfate (Monohydrate & Heptahydrate)? Jiangsu Khonor Chemicals Co., Limited provides top-quality Zinc Sulfate for food, pharmaceutical, and industrial applications.

📞 Contact us now for quotations & technical specifications!


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