Zinc Sulfate Heptahydrate USP (CAS Number: 7446-20-0) is a high-purity, pharmaceutical-grade inorganic compound that fully complies with United States Pharmacopeia (USP) monograph standards. With the molecular formula ZnSO₄·7H₂O and a molecular weight of 287.54 g/mol, this product appears as colorless transparent crystals or white crystalline powder with excellent water solubility and stable chemical properties.
As a refined USP-grade raw material, our Zinc Sulfate Heptahydrate undergoes strict purification and quality control procedures, free from excessive heavy metals, impurities, and harmful residues. It is widely recognized for high purity, consistent batch stability, and compliance with global pharmaceutical, food, and industrial regulatory requirements, serving as a reliable zinc source for diverse commercial and industrial applications 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: pharmaceutical grade zinc sulfate heptahydrate; high purity zinc sulfate heptahydrate.
Core Product Advantages
- Strict USP Compliance: Manufactured and tested in full accordance with USP monograph specifications, with complete test reports and certification documents. Every batch strictly meets pharmaceutical-grade purity and impurity control standards, eligible for US and global regulated market sales.
- Ultra-High Purity & Low Impurity: Adopts advanced purification technology, effectively controlling heavy metals, chloride, iron, and other trace impurities. No harmful residues, ensuring safety and stability for pharmaceutical and food-grade applications.
- Excellent Solubility & Stability: Features rapid and complete water solubility without precipitation. The crystal structure is stable with low efflorescence, maintaining consistent physical and chemical properties across different storage and usage environments.
- Batch Consistency: Standardized production process and strict quality inspection system ensure uniform particle size, purity, and moisture content of each batch, avoiding product fluctuation and ensuring stable end-product quality.
- Multi-Scenario Adaptability: Balances pharmaceutical safety, food grade hygiene, and industrial applicability, supporting customized specifications and packaging to meet diverse customer demands.
Wide Applications
Zinc Sulfate Heptahydrate USP is a versatile high-grade zinc supplement raw material, widely applied in pharmaceutical, dietary supplement, food, agriculture, and fine chemical industries:
Pharmaceutical Industry
It is a core raw material for pharmaceutical zinc supplements, used in the production of zinc sulfate oral solutions, tablets, and injections. It effectively treats and prevents zinc deficiency in humans, improves immune function, and assists in the treatment of skin diseases and digestive disorders. Strict USP certification ensures compliance with pharmaceutical ingredient safety standards.
Dietary Supplement & Food Industry
Serves as a legal and safe zinc fortifier for functional foods, health supplements, and beverage products. It supplements human zinc intake, promotes growth and development, and is widely used in infant food, nutritional supplements, and daily functional food formulations.
Agricultural Industry
As a high-purity zinc fertilizer additive, it corrects crop zinc deficiency symptoms, promotes plant photosynthesis and growth, and improves crop yield and quality. Its high solubility ensures rapid absorption by crops, suitable for soil fertilization and foliar spraying of various crops.
Fine Chemical & Industrial Fields
Used as a raw material for producing zinc salts, zinc pigments, and chemical reagents. It also applies in electroplating solutions, water treatment, textile printing and dyeing, and feed additive processing, providing stable chemical performance for industrial production.
Packaging & Storage
Standard packaging: 25kg plastic drum / kraft paper bag; customized packaging (1kg, 5kg, 10kg, 12kg) is available according to customer requirements. All packages are sealed and moisture-proof, suitable for long-distance ocean and land transportation.
Storage Conditions
Store in a cool, dry, and well-ventilated warehouse, away from moisture, high temperature, and direct sunlight. Keep sealed during storage to prevent efflorescence and moisture absorption. Separate storage with alkaline substances and toxic chemicals is required to avoid chemical reactions. The valid shelf life is 24 months under proper storage conditions.
Quality Assurance & Service
Our Zinc Sulfate Heptahydrate USP is produced in a standardized GMP-compliant workshop, with each batch accompanied by complete COA (Certificate of Analysis), USP compliance report, and shipping documents. We support third-party testing and provide customized product solutions and technical guidance according to customer application scenarios.
With stable supply capacity, fast delivery, and professional after-sales service, we have established long-term cooperative relationships with customers from North America, Europe, Southeast Asia, and other global regions, winning wide recognition for product quality and service credibility.
Complete After-Sales Service System
We provide full-cycle, one-stop after-sales support for all customers purchasing Zinc Sulfate Heptahydrate, focusing on solving customer usage and cooperation problems efficiently, with comprehensive service guarantees as follows:
Professional Technical After-Sales Support
We arrange professional chemical technical engineers to provide 24-hour online technical consultation, including product usage guidance, formulation matching, storage and handling precautions, and industry application solution optimization. For customers with special application scenarios, we can provide targeted technical debugging and parameter adjustment guidance to ensure the product exerts optimal performance.
Quality Problem Handling Guarantee
In case of product quality problems that do not meet USP standards, batch inconsistency, or non-compliance with contract specifications confirmed by third-party authoritative testing, we provide free replacement, full refund, or supplementary delivery services in the shortest time. We bear all resulting logistics and testing costs to fully protect customers' legitimate rights and interests.
Logistics & Transportation After-Sales Support
Track the whole logistics process of orders, timely feedback on transportation progress and abnormal situations. For product damage, moisture, or package damage caused by long-distance transportation, we provide timely compensation, re-delivery and follow-up processing services, solving all transportation-related after-sales problems for customers.
Customized Service Follow-up
For customers with customized packaging, special specifications and bulk order demands, we provide one-on-one exclusive customer manager follow-up service, regularly inquire about product usage effects, collect customer feedback, and continuously optimize products and service schemes according to customer needs.
Long-Term Cooperative After-Sales Benefits
For long-term cooperative customers, we provide regular product quality follow-up reports, free sample support for new product testing, priority delivery rights, and exclusive bulk order discounts. We support regular factory audits and third-party joint testing to ensure long-term stable product supply quality.
Global Multi-Language Service
Equipped with professional multilingual service teams, we provide barrier-free after-sales communication and problem-solving services for global customers, adapting to the service needs of different regional markets.
Contact Us
For wholesale prices, bulk order discounts, customized specifications, and sample testing services of Zinc Sulfate Heptahydrate, please feel free to contact us. We will provide you with the most competitive quotation and professional product technical support within 24 hours.
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