Zinc Sulfate Heptahydrate for Livestock Feed Additive

CAS No.: 7446-20-0 | Molecular Formula: ZnSO₄·7H₂O

Zinc Sulfate Heptahydrate, commonly known as Zinc Vitriol, is a high-purity, water-soluble inorganic zinc salt with wide-ranging industrial, agricultural, and livestock applications. It appears as white or slightly pale yellow crystalline granules or powder. Featuring excellent water solubility, slight solubility in ethanol and glycerin, the product effloresces gradually in dry air and loses crystal water step by step under heating conditions with stable chemical properties. As a core essential raw material with controllable impurities and reliable performance, our zinc sulfate heptahydrate is widely supplied to global markets, covering agricultural fertilization, feed additives, electroplating, printing and dyeing, water treatment, and chemical synthesis, serving as a staple product for bulk B2B procurement worldwide.

- Product Categories: Zinc sulfate heptahydrate is available in several grades, including industrial-grade, agricultural-grade, rubber additive-grade, electronic-grade, and pharmaceutical-grade. Each grade is available in different particle sizes: 2–4 mm, 1–3 mm, and <1 mm.

- Product Keywords: zinc sulfate heptahydrate for animal feed.

Appearance: White crystalline granules / powder

Zinc (Zn) Content: ≥22.5%

Zinc Sulfate Heptahydrate Purity: ≥99.0%

Water Insoluble Matter: ≤0.05%

Impurities (Iron, Chloride, Heavy Metals): Strictly controlled per grade standards

Solubility: Easily soluble in water, weakly acidic aqueous solution

1. Rapid Dissolution & High Absorption Rate
This product is fully water-soluble without insoluble residues, perfectly compatible with drip irrigation, fertigation, foliar spraying, and electrolyte preparation processes. It releases zinc ions stably and effectively avoids zinc fixation by soil colloids, ensuring high utilization efficiency for both agricultural and industrial use.

2. Multiple Grades for Diversified Scenarios
We provide agricultural grade, feed grade, and industrial grade zinc sulfate heptahydrate, complying with HG/T 2326 and GB/T 25865 national industry standards. The content of zinc element is stable, and heavy metal impurities including lead, arsenic, and cadmium are strictly controlled to meet the import inspection standards of Europe, America, Southeast Asia, the Middle East, and other global regions.

3. Stable Purity & Traceable Batches
Adopting refined raw materials and standardized production processes, our products feature uniform color, less caking, and consistent quality. Each batch is equipped with complete quality inspection certificates, including COA and SDS documents, supporting third-party testing and facilitating customs clearance and internal quality control for global clients.

4. Flexible Packaging & Sea Freight Adaptability
The standard package is 25kg woven bags with inner plastic lining. Customized services such as pallet packaging, neutral packaging, and OEM private labeling are available. The fully sealed and moisture-proof packaging design effectively prevents efflorescence, caking, and moisture damage during long-distance maritime transportation.

1.Agriculture & Horticulture
As a high-efficiency zinc fertilizer, Zinc Sulfate Heptahydrate effectively prevents and corrects crop zinc deficiency symptoms such as leaf atrophy, clustered leaves, yellowing leaves, and low fruit setting rate. It is widely applicable to corn, rice, wheat, citrus, apples, vegetables, cotton, and other crops. It can be used for soil base fertilization, flushing fertilization, foliar spraying, and seed soaking. It promotes chlorophyll synthesis, enhances plant enzyme activity, accelerates carbohydrate transportation, and significantly improves crop yield and fruit quality, with particularly prominent effects on alkaline soil.

2.Animal Husbandry & Aquaculture
Feed-grade zinc sulfate heptahydrate is an essential trace element additive for livestock, poultry, and aquatic products. It supplements sufficient zinc for pigs, poultry, fish, and shrimp, maintaining healthy fur, normal immune function, reproductive performance, and bone development. It effectively solves growth retardation and dermatitis caused by zinc deficiency, and is a core raw material for premix and compound trace element feed.

3.Industrial Fields
Electroplating & Electrolysis: A key raw material for galvanizing electrolyte, ensuring uniform and stable anti-corrosion coating for metal surface treatment.
Printing, Dyeing & Leather Industry: Used as a mordant for printing and dyeing, and a preservative for wood and leather, as well as an auxiliary agent for viscose fiber production.
Water Treatment: Serves as a coagulant aid and water quality stabilizer for turbidity removal and scale inhibition in circulating water systems.
Chemical Synthesis & Pigments: Applied to produce zinc-based products such as lithopone, zinc borate, and zinc stearate, and used as chemical catalysts and mineral processing agents.
Other Uses: Widely used in battery electrolyte additives, laboratory analytical reagents, and medical astringent raw materials.

Store in a cool, dry, and ventilated warehouse, away from humid environments and oxidants. Keep packages sealed and avoid long-term open-air storage to prevent efflorescence and caking. Avoid strong sunlight exposure, rain soaking, and package damage during transportation. Wear protective equipment during operation to prevent dust inhalation and wash skin thoroughly after contact. Do not discharge waste liquid arbitrarily. For detailed safety guidelines, please refer to the official SDS document.

Why Choose Us as Your Reliable Supplier?

We are a professional manufacturer and supplier of high-quality zinc sulfate heptahydrate with stable inventory all year round. Both granular and powder forms are in stock, supporting small-batch sample orders and full-container bulk orders. We can adjust impurity indicators and product grades according to regional import standards to meet customized client demands. Equipped with complete customs clearance documents and rich export experience, we serve agricultural distributors, feed factories, electroplating enterprises, and chemical traders across Southeast Asia, the Middle East, South America, and other regions. We provide transparent pricing, stable delivery cycles, and professional technical after-sales support. Feel free to contact us for latest quotations, free samples, and complete SDS files.

Company R&D Capabilities

• We have a team of over 20 professional R&D personnel spanning multiple fields, including chemistry and engineering.
• Team members possess extensive R&D experience; key members have previously worked at Merck & Co. in the U.S. and the Max Planck Society in Germany.

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