Premium Zinc Source for Agricultural & Industrial Applications
Zinc Sulphate Granular (ZnSO₄·7H₂O), also known as zinc sulfate heptahydrate, is a white to pale yellow crystalline compound that serves as the world’s most widely used zinc micronutrient fertilizer. Containing approximately 21-23% zinc content, it provides essential zinc nutrition for plant growth, enzyme activation, and overall crop quality. Beyond agriculture, Zinc Sulphate Granular finds extensive use in animal nutrition, pharmaceutical manufacturing, and various industrial applications due to its high purity, excellent solubility, and chemical stability.
Product Specifications
| Property | Specification |
|---|---|
| Chemical Formula | ZnSO₄·7H₂O (Heptahydrate) |
| Appearance | White to pale yellow crystalline granules |
| Purity | ≥ 95% ZnSO₄·7H₂O (Fertilizer Grade), ≥ 99% (Food Grade) |
| Zinc Content | 21-23% Zn (Heptahydrate), 35-36% Zn (Monohydrate) |
| Moisture Content | ≤ 1% maximum |
| Solubility | 965 g/L in water at 20°C |
| pH (5% Solution) | 4.0 – 6.0 |
| Granule Size | 1.0-4.0 mm (granular), 100-200 mesh (powder) |
| Packaging | 25 kg bags, 50 kg bags, 1000 kg big bags |
Applications of Zinc Sulphate Granular
✅ Agricultural Fertilizer Applications
- Field crop nutrition for corn, wheat, rice, soybeans, and other cereal grains
- Fruit and vegetable production including citrus, potatoes, tomatoes, and leafy greens
- Orchard management for apples, pears, stone fruits, and nut trees
- Specialty crops including cotton, sugar beets, oil palm, and ornamental plants
✅ Animal Feed Industry
- Poultry nutrition for broilers, layers, and breeding stock
- Livestock feed for cattle, sheep, goats, and swine
- Aquaculture applications for fish and shrimp farming
- Pet food manufacturing for companion animal nutrition
✅ Pharmaceutical Manufacturing
- Dietary supplements for human zinc deficiency treatment
- Topical medications for skin disorders and wound healing
- Pharmaceutical intermediates in drug synthesis processes
- Veterinary medicines for animal health applications
✅ Chemical Manufacturing
- Zinc oxide production through thermal decomposition
- Zinc-based catalysts for chemical reactions
- Pigment manufacturing for paints and coatings
- Galvanizing processes for metal protection
✅ Industrial Applications
- Water treatment for precipitation and coagulation
- Textile industry for mordanting and dyeing processes
- Paper manufacturing for bleaching and preservation
- Rubber industry as a vulcanization accelerator
✅ Food Processing
- Nutritional fortification of food products
- Food preservation through antimicrobial properties
- Dietary supplements manufacturing
- Functional food development
Benefits of Zinc Sulphate Granular
✔ High Zinc Content
Contains 21-23% zinc in heptahydrate form, providing concentrated micronutrient nutrition with efficient application rates.
✔ Excellent Solubility
Highly water-soluble (965 g/L) ensuring rapid dissolution and immediate availability for plant uptake or industrial processes.
✔ Cost-Effective Solution
Most economical source of zinc for agricultural and industrial applications, offering excellent value for money in bulk quantities.
✔ Versatile Application Methods
Compatible with broadcasting, fertigation, foliar application, and soil incorporation systems, providing flexibility for different operational requirements.
✔ Chemical Stability
Maintains quality and potency under proper storage conditions, ensuring consistent performance over extended periods.
✔ Multiple Grade Options
Available in food-grade, fertilizer-grade, and industrial-grade specifications to meet diverse application requirements.
Agricultural Benefits & Plant Nutrition
Zinc Functions in Plants
- Enzyme activation supporting over 300 enzyme systems in plants
- Protein synthesis essential for plant growth and development
- Chlorophyll formation and photosynthesis enhancement
- Auxin metabolism controlling plant growth hormones
Deficiency Symptoms Prevention
- Interveinal chlorosis in young leaves
- Stunted growth and reduced plant vigor
- Delayed maturity and poor fruit set
- Rosetting in fruit trees and ornamentals
Crop Quality Enhancement
- Grain quality improvement in cereals
- Fruit size and quality in horticultural crops
- Protein content enhancement in legumes
- Oil quality improvement in oilseed crops
Yield Optimization
- Grain fill improvement in cereal crops
- Fruit development enhancement in fruit trees
- Root development promotion for better nutrient uptake
- Overall productivity increase across all crop types
Animal Nutrition Applications
Poultry Benefits
- Egg shell quality improvement in layers
- Feather development and plumage quality
- Immune system enhancement and disease resistance
- Reproductive performance optimization
Livestock Applications
- Hoof health improvement in cattle and sheep
- Reproductive efficiency enhancement
- Immune function support and disease prevention
- Growth rate optimization in young animals
Aquaculture Uses
- Fish growth promotion and feed conversion
- Disease resistance improvement
- Reproduction enhancement in breeding stock
- Water quality management support
Industrial Process Applications
Chemical Manufacturing Processes
- Precipitation reactions for metal removal
- Catalyst preparation for chemical synthesis
- Pigment production for industrial coatings
- Electroplating solutions for metal finishing
Water Treatment Operations
- Coagulation processes for suspended solids removal
- pH adjustment in treatment systems
- Heavy metal precipitation and removal
- Algae control in water bodies
Textile Industry Applications
- Mordanting for dye fixation
- Antimicrobial treatments for fabrics
- Flame retardant formulations
- Fabric finishing processes
Application Guidelines
Agricultural Applications
- Soil testing to determine zinc requirements
- Crop-specific rates based on deficiency levels
- Timing optimization for maximum uptake efficiency
- Application methods selection based on crop and equipment
Fertilizer Application Rates
- Cereal crops: 2-5 kg Zn/ha depending on soil test levels
- Fruit trees: 10-25 kg/ha for mature orchards
- Vegetable crops: 5-15 kg/ha based on intensive production
- Rice paddies: 10-20 kg/ha for zinc-deficient soils
Animal Feed Inclusion Rates
- Poultry: 40-100 ppm in complete feed
- Cattle: 30-60 ppm in dry matter
- Swine: 100-150 ppm in complete feed
- Aquaculture: 30-50 ppm in fish feed
Industrial Dosing
- Water treatment: 5-50 ppm for precipitation applications
- Textile processing: According to fabric type and process
- Chemical manufacturing: Stoichiometric calculations based on reactions
- Food fortification: According to nutritional requirements
Quality Control & Testing
Physical Properties Testing
- Particle size distribution for application uniformity
- Bulk density measurements for handling calculations
- Moisture content determination for storage stability
- Flowability evaluation for processing equipment
Chemical Analysis
- Zinc content verification by atomic absorption spectroscopy
- Sulfate content determination by gravimetric analysis
- Heavy metals screening for contaminants
- pH measurement for process optimization
Microbiological Testing
- Total plate count for food-grade specifications
- Pathogen screening including Salmonella and E. coli
- Yeast and mold counts for shelf-life determination
- Sterility testing for pharmaceutical applications
Storage & Handling
Storage Requirements
- Store in dry, well-ventilated warehouses
- Protect from moisture to prevent caking
- Maintain temperature below 25°C
- Use moisture-resistant packaging materials
Handling Precautions
- Wear appropriate personal protective equipment
- Avoid dust inhalation during handling
- Ensure adequate ventilation in storage areas
- Prevent contamination from incompatible materials
Transportation
- Use covered vehicles for moisture protection
- Secure loads to prevent shifting during transport
- Comply with hazardous materials regulations
- Maintain proper documentation for traceability
Environmental Considerations
Sustainable Agriculture Practices
- Precision application to minimize environmental impact
- Soil testing for targeted zinc supplementation
- Integrated nutrient management for balanced fertilization
- Foliar application for efficient micronutrient delivery
Environmental Safety
- Appropriate dosing to prevent soil accumulation
- Buffer zones near water bodies
- Runoff prevention through proper application timing
- Soil pH monitoring for optimal zinc availability
Packaging & Delivery Options
Standard Packaging
- 25 kg Polypropylene Bags – Ideal for small farms and specialty applications
- 50 kg Woven Bags – Standard for medium-scale agricultural operations
- 1000 kg Big Bags – Cost-effective for large commercial operations
Specialized Packaging
- Food-grade packaging for food industry applications
- Pharmaceutical packaging meeting USP/BP standards
- Moisture-resistant packaging for extended storage
- Custom packaging for specific customer requirements
Global Distribution Network
- Strategic warehouses in key agricultural regions
- Reliable transportation with temperature-controlled options
- Fast delivery across South Africa, SADC, and international markets
- Technical support for application optimization
Technical Support Services
Agronomic Support
- Soil testing interpretation and recommendations
- Crop nutrition planning and optimization
- Application guidance for maximum efficiency
- Deficiency diagnosis and correction strategies
Industrial Applications Support
- Process optimization for manufacturing applications
- Quality assurance for consistent performance
- Technical documentation for regulatory compliance
- Custom formulations for specific requirements
Regulatory Compliance
Food Grade Standards
- FDA approval for food contact applications
- HACCP compliance for food processing operations
- Kosher and Halal certification available
- Organic certification for approved organic applications
Feed Grade Standards
- AAFCO compliance for animal feed applications
- EU regulations for feed additive approval
- Quality assurance for consistent nutritional content
- Batch certification for traceability
Why Choose Our Zinc Sulphate Granular?
✔ Superior Purity
Manufactured using advanced crystallization processes to meet the highest quality standards for food, pharmaceutical, and industrial applications.
✔ Consistent Quality
Rigorous quality control testing ensures batch-to-batch consistency and reliable performance across all applications.
✔ Competitive Pricing
Direct sourcing relationships and efficient supply chain management enable competitive bulk pricing for all grade levels.
✔ Technical Expertise
Experienced technical team provides comprehensive support for application optimization and regulatory compliance.
✔ Reliable Supply
Established production capacity and strategic inventory management ensure consistent availability throughout the year.
✔ Multiple Grades Available
Food-grade, fertilizer-grade, and industrial-grade options to meet diverse application requirements and specifications.
