Tianjin Xingyu Fertilizer Industry Co., Ltd. is a top-tier magnesium sulphate heptahydrate manufacturer in China. Our magnesium sulphate hydrate 0.1–1mm fine crystal grade (MgS04 . 7H20) is specially processed to achieve uniform particle size distribution, brilliant white crystal clarity, and exceptional solubility.
Produced in our state-of-the-art magnesium sulphate heptahydrate factory, this 0.1–1mm specification dissolves almost instantly in water without leaving any insoluble residue, making it the preferred choice for liquid fertilizer blenders, agricultural fertigation systems, and industrial chemical processing.
Rapid & Complete Dissolution: The ultra-fine crystal size (0.1–1mm) offers a higher surface area for instant solubility in cold and warm water, leaving zero residue to clog spray nozzles or drip irrigation emitters.
High Purity & High MgO Content: Formulated with minimum 99% purity (MgS07H20>99%,MgO> 16.2%) to maximize plant nutrient absorption.
Excellent Free-Flowing Property: Anti-caking treatment ensures good particle flow during storage, automatic batching, and mechanical blending.
Low Heavy Metals: Produced under strict quality control, compliant with EU agricultural and feed safety standards.
3. Recommended Applications
Ideal for direct drip irrigation (fertigation), center pivot systems, hydroponics, and foliar spraying due to its non-clogging and rapid-dissolving performance.
Acts as a premium magnesium and sulfur nutrient source in water-soluble NPK dry formulations.
Serves as an easily absorbable magnesium supplement for dairy cows, poultry, and aquaculture feeds.
Widely used in water treatment, textiles, leather tanning, detergent formulations, and paper manufacturing requiring fine-grain MgSO4.
4. Packaging & Logistics Solutions
Standard Bags: 25kg or 50kg PP woven bags with PE inner liner (Moisture-proof).
Jumbo Bags: 1,000kg or 1,250kg big bags with bottom discharge spout for easy industrial unloading.
Custom OEM Packaging: Private label design, UV-resistant bags, and custom pallets (ISPM 15 heat-treated or plastic pallets) available upon request.
Loading Capacity: 25–27 MT per 20'FCL container.
