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CAS NO.10034-99-8
Magnesium Sulfate Heptahydrate offers exceptional versatility and reliability across multiple industries due to its high purity, excellent solubility, and consistent chemical composition. Manufactured to meet USP, BP, EP, and CP standards, this product ensures pharmaceutical-grade quality suitable for both medicinal and industrial use. Its heptahydrate form provides a stable and highly bioavailable source of magnesium and sulfur, making it ideal for applications in agriculture as a dual-nutrient fertilizer that improves crop yield and quality. The product’s crystalline structure enhances solubility and ease of handling, while the availability of various granular sizes—including regular, medium, large, and dyed granules—ensures adaptability for customized applications, such as precision field spreading, controlled-release formulations, and visible tracking during use. The dyed versions offer practical advantages in compound fertilizers and field visibility. In addition to its agricultural and pharmaceutical benefits, magnesium sulfate heptahydrate is also widely used in food processing, water treatment, chemical synthesis, personal care formulations, and bath products, making it a high-demand, multi-functional compound in global markets.
Magnesium Sulfate Heptahydrate (MgSO?·7H?O), commonly referred to as Epsom Salt, is a highly water-soluble inorganic salt with a wide range of applications in agriculture, pharmaceuticals, chemical manufacturing, and personal care. We offer this product in multiple forms, including regular crystal, large granular, medium granular, and dyed granular versions, tailored to specific industrial and agricultural needs.
The product conforms to USP/BP/EP/CP standards and features high purity, stable quality, and excellent solubility. The granular variations provide flexibility in application methods—dyed granules are especially beneficial for visual identification in compound fertilizers or field application, ensuring even distribution.
Used as a magnesium and sulfur source in fertilizers, and in pharmaceutical, chemical, and personal care industries.
Available in 25kg or 50kg plastic woven bags with PE inner liners, jumbo bags, or customized packaging as required.
| Specification | Heptahydrate (MgSO?·7H?O) | Pentahydrate (MgSO?·5H?O) | Trihydrate (MgSO?·3H?O) | Dihydrate (MgSO?·2H?O) | Monohydrate (MgSO?·H?O) | Anhydrous (MgSO?) |
|---|---|---|---|---|---|---|
| Appearance | White crystal | White powder or crystal | White powder or crystal | White powder or crystal | White powder or crystal | White powder or crystal |
| Main Content (%) | ≥99.5 | ≥99 | ≥99 | ≥99 | ≥99 | ≥98 |
| Magnesium (Mg) (%) | 9.80 | 11.31 | 13.65 | 15.23 | 17.21 | 19.60 |
| Sulfate (SO?) (%) | 48.59 | 56 | 68 | 76 | 86 | 98 |
| Magnesium Oxide (MgO) (%) | 16.20 | 19.00 | 22.70 | 25.30 | 28.60 | 32.60 |
| pH (5% solution) | 5.0 – 9.2 | 5.0 – 9.2 | 5.0 – 9.2 | 5.0 – 9.2 | 5.0 – 9.2 | 5.0 – 9.2 |
| Iron (Fe) (%) | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 |
| Chloride (Cl) (%) | ≤0.014 | ≤0.014 | ≤0.014 | ≤0.014 | ≤0.014 | ≤0.014 |
| Heavy Metals (Pb) (%) | ≤0.0006 | ≤0.0006 | ≤0.0007 | ≤0.0007 | ≤0.0008 | ≤0.0008 |
| Arsenic (As) (%) | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 |