Molecular Formula: MgSO₄·7H₂O
Molecular Weight: 246.47
CAS NO.: 10034-99-8
HS Code: 2833.21
Payment Terms: T/T, L/C
Trade Terms: FOB, CFR, CIF
MOQ: 20GP ≈ 20-25MT
Packaging Options: 25kg/1000kg bags, pallet packing, Customization
1. Basic Information
Product Name: Magnesium Sulfate Heptahydrate /Epsom Salt / Bitter Salt
Chemical Name: Magnesium Sulfate Heptahydrate
Product Introduction: This product is high-purity magnesium sulfate heptahydrate refined by crystallization process, presented as pure white transparent needle/oblique column crystals with 7 crystal waters. It is the most widely used magnesium and sulfur raw material for agricultural planting and industrial manufacturing. Divided into industrial grade and agricultural fertilizer grade, it features excellent water solubility, fast dissolution rate and ultra-low impurities. It has dual functions for industrial raw material application and agricultural magnesium & sulfur supplement, suitable for foreign trade export, conventional chemical production, field and cash crop planting, serving as a global universal bulk magnesium-sulfur raw material.
2. Physical & Chemical Index Table
Executive Standard: Industrial Grade: HG/T 2680-2009; Agricultural Fertilizer Grade: GB/T 26568-2011
3. Product Core Characteristics
Superior Solubility: With stable crystal water structure, it dissolves rapidly in water with clear solution. Dissolution speed is faster than anhydrous and monohydrate magnesium sulfate, applicable for foliar fertilizer, drip irrigation fertilizer and industrial liquid batching.
High-Availability Nutrients: Water-soluble magnesium and sulfur elements are easily absorbed by crop roots and leaves, effectively improving crop leaf chlorosis and seedling premature senescence caused by magnesium deficiency.
Dual-Grade Compliance: Clear classification of industrial and agricultural grades, meet national and international industry standards, complete qualification documents for global customs clearance, fit domestic and overseas sales channels.
Stable Batch Quality: Produced by automatic crystal purification production line, stable nutrient and impurity indexes per batch, no quality deviation, fit factory standardized production and large-scale farm fertilization.
Wide Application Range: The most popular magnesium-sulfur raw material worldwide, usable for direct industrial processing and farm fertilization, also core raw material for compound fertilizer, water-soluble fertilizer and foliar fertilizer production.
4. Grade Application
1 Industrial Grade Usage
Building Material: Raw material for magnesium fireproof board, lightweight thermal insulation material, cement grinding aid and curing agent
Chemical Industry: Industrial desiccant, catalyst carrier, electrolyte regulator, printing and dyeing mordant, electroplating additive, food grade auxiliary raw material
Light Industry & Environmental Protection: Water hardness adjustment, ceramic glaze preparation, papermaking, leather processing, daily chemical powder material, sewage treatment auxiliary agent
2 Agricultural Fertilizer Grade Usage
Product Efficacy: Supplement magnesium and sulfur secondary nutrients, enhance crop photosynthesis, ameliorate acidified soil, improve fruit color, sweetness and yield, strengthen crop disease and stress resistance.
Application Method: Base fertilizer spreading, compound fertilizer blending, drip irrigation, flushing fertilization, foliar spraying, soilless culture nutrient solution preparation
Applicable Crops: Fruit trees, greenhouse vegetables, tobacco, tea, Chinese medicinal herbs, cotton, tuber crops, field grain and oil crops