AOLANSU Magnesium Sulfate Heptahydrate is a versatile magnesium-sulfur compound designed for fertilizer manufacturing, crop nutrition, water-soluble fertilizer production, and selected industrial applications. With the molecular formula MgSO₄·7H₂O and CAS No. 10034-99-8, it provides a readily available source of magnesium and sulfur with excellent water solubility. AOLANSU manufactures and supplies crystal, powder, and granular grades to meet the processing and application requirements of fertilizer distributors, agricultural suppliers, and industrial buyers.
Unlike products that focus primarily on concentrated nutrient content, this material is valued for its rapid dissolution, flexible formulation capability, and compatibility with different fertilizer application systems. AOLANSU applies controlled crystallization, purification, drying, and packaging procedures to maintain consistent quality between batches. The company also holds a Hazardous Chemicals Business License , supporting compliant chemical product operations and professional supply services for qualified customers.
AOLANSU Magnesium Sulfate Heptahydrate is available in different physical forms to accommodate fertilizer blending, direct agricultural application, and industrial processing. Each batch is inspected for key chemical and physical parameters before shipment.
| Parameter | Specification |
|---|---|
| Product Name | Magnesium Sulfate Heptahydrate |
| Molecular Formula | MgSO₄·7H₂O |
| CAS No. | 10034-99-8 |
| Heptahydrate Content | ≥99.0% |
| Magnesium Content | Mg ≥16% |
| Sulfur Content | S ≥13% |
| Appearance | Colorless crystals or white powder |
| Particle Size | Crystal: 0.5–2 mm; Powder: 80–100 mesh; Granular: 2–4 mm |
| Water Solubility | Excellent and rapidly soluble in water |
| Packaging | 25 kg / 50 kg bags or customized packaging |
| Applications | Agriculture, fertilizer production, fertigation, industrial processing, and specialty applications |
Magnesium is an essential component involved in chlorophyll formation and photosynthesis, while sulfur contributes to protein synthesis and plant metabolic processes. The combination of these two nutrients makes this material a practical ingredient for correcting magnesium-sulfur deficiencies and developing balanced fertilizer formulations.
Its strong water solubility allows the product to dissolve efficiently when preparing liquid fertilizers or nutrient solutions. This characteristic makes it suitable for fertigation, drip irrigation, foliar nutrition, and water-soluble fertilizer manufacturing where rapid nutrient availability is required.
Different customers have different processing requirements. AOLANSU supplies crystal, powder, and granular forms, allowing fertilizer manufacturers to select an appropriate particle structure according to blending equipment, application technology, transportation conditions, and end-user requirements.
For fertilizer manufacturers, batch-to-batch consistency is essential for maintaining a stable final formulation. AOLANSU controls magnesium content, sulfur content, purity, particle characteristics, and product appearance during production and final inspection to support reliable large-volume procurement.
AOLANSU has a Hazardous Chemicals Business License (危险化学品经营许可证) and maintains standardized procedures for chemical product management, documentation, storage, and supply. This provides qualified agricultural and industrial buyers with additional confidence when sourcing magnesium sulfate products for international business.
AOLANSU uses a controlled manufacturing process that includes raw material inspection, purification, crystallization, separation, drying, screening, and packaging. Production parameters are monitored to maintain consistent crystal structure, purity, particle size, and dissolution characteristics.
Before delivery, finished products undergo quality inspection covering magnesium content, sulfur content, purity, moisture, particle size, and appearance. For bulk orders, production and inspection records can be maintained according to customer and export requirements, helping distributors and fertilizer manufacturers achieve more consistent downstream product quality.
AOLANSU Magnesium Sulfate Heptahydrate can be used as a magnesium-sulfur raw material in compound fertilizers, water-soluble fertilizers, liquid nutrient formulations, and specialty fertilizer products. Its good solubility makes it convenient to incorporate into formulations requiring readily available magnesium and sulfur.
When properly dissolved and applied according to agronomic recommendations, the product can be used in fertigation and drip irrigation systems. This allows growers to deliver magnesium and sulfur through irrigation water and adjust nutrient supply according to crop development, soil conditions, and cultivation methods.
Magnesium and sulfur supplementation can be particularly valuable in intensive cultivation of fruit trees and vegetables. The product can be used for crops such as apples, citrus, grapes, tomatoes, peppers, leafy vegetables, and other crops where balanced secondary-nutrient management is required.
For rice, wheat, corn, soybeans, and other field crops, the product provides an additional source of magnesium and sulfur when soil testing or crop conditions indicate a nutrient requirement. Application programs can be incorporated into base fertilization, top dressing, or water-based nutrient management.
High-purity magnesium sulfate heptahydrate can also serve as a raw material or processing ingredient in selected industrial and specialty applications. AOLANSU can discuss purity, particle size, packaging, and documentation requirements with industrial buyers according to their intended use.
A commercial rice-growing operation in Southeast Asia experienced uneven plant growth and reduced leaf vitality during the tillering and grain-filling stages. Local agronomic evaluation indicated that magnesium and sulfur supplementation could help improve the nutrient balance of the crop.
The grower incorporated AOLANSU Magnesium Sulfate Heptahydrate into a water-based nutrient program and applied it through fertigation and foliar nutrition at different growth stages. Following application, the treated fields showed greener foliage, more uniform plant development, and improved grain-filling performance compared with the previous cultivation program.
The case demonstrated the value of a highly soluble magnesium-sulfur source in intensive rice production, particularly where growers need flexible nutrient delivery through existing irrigation and crop management systems.
| Comparison | Magnesium Sulfate Heptahydrate | Anhydrous Magnesium Sulfate |
|---|---|---|
| Crystal Water | Contains seven molecules of crystal water | Contains no crystal water |
| Formula | MgSO₄·7H₂O | MgSO₄ |
| Dissolution | Excellent water solubility | Excellent water solubility |
| Nutrient Concentration per Unit Weight | Lower due to crystal water | Higher due to absence of crystal water |
| Typical Advantage | Flexible agricultural and fertilizer formulation | Concentrated magnesium-sulfur applications |
| Common Forms | Crystal, powder, granular | Powder and customized forms |
Raw materials are checked before entering production to help control impurity levels and maintain stable chemical composition. This provides a consistent starting point for subsequent crystallization and purification processes.
Finished batches are analyzed for key indicators including purity, magnesium content, sulfur content, and other relevant quality parameters. Testing helps ensure that delivered products remain within the agreed specification.
Appearance, particle size, moisture condition, and packaging integrity are inspected before shipment. Different physical forms can be prepared according to customer requirements, supporting fertilizer production and different application systems.
AOLANSU can provide relevant commercial and technical documentation according to order requirements, including COA, MSDS/SDS, Certificate of Origin, packing documentation, and other applicable export documents. The company also holds a Hazardous Chemicals Business License (危险化学品经营许可证) for compliant chemical product business operations.
A: It is mainly used as a magnesium and sulfur source for fertilizer manufacturing, soil fertilization, fertigation, drip irrigation, and foliar nutrient applications. The appropriate application method should be determined according to crop type, soil conditions, and local agricultural recommendations.
A: Yes. Its excellent water solubility makes it suitable for water-soluble fertilizer formulations and irrigation-based nutrient delivery. Customers should confirm compatibility with the complete fertilizer formulation before commercial-scale blending.
A: AOLANSU can supply crystal, powder, and granular forms. Particle size can also be discussed according to the customer's fertilizer production equipment and application requirements.
A: Store the product in a cool, dry, and well-ventilated warehouse and protect it from direct moisture exposure. Bags should remain properly sealed during storage and transportation to help maintain product quality.
A: Yes. AOLANSU holds a Hazardous Chemicals Business License (危险化学品经营许可证) and provides professional chemical product supply and documentation services for qualified customers.
A: Yes. AOLANSU supports customized packaging specifications, bag printing, private labeling, particle size, and bulk supply solutions according to order volume and market requirements.
AOLANSU combines standardized production, laboratory quality control, flexible product forms, and international supply experience to serve fertilizer manufacturers, agricultural distributors, and industrial buyers. The company focuses on stable specifications and long-term supply rather than one-time transactions.
For customers purchasing magnesium sulfate products in bulk, AOLANSU can provide product specifications, COA, MSDS/SDS, packaging solutions, export documentation, and customized supply arrangements. The Hazardous Chemicals Business License further supports professional and compliant chemical business operations.
For quotations, product samples, technical specifications, customized packaging, export documentation, or long-term supply cooperation, contact the AOLANSU sales team.
Email: yang.jiao@dicotbio.com
Phone: +86-18554319686
WhatsApp: +8613953143210
Address: (North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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(North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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