Grade | Purity (%min) | MgSO4 (%min) | MgO (%min) | Mg (%min) | PH (5% H2O) | Crystal size (≥90%)mm |
AAA | 98 | 98 | 32.6 | 19.8 | 5.0-7.5 | 0.1-1 1-3 1-4 |
AA | 99 | 48.48 | 16.23 | 9.7 | 5.0-7.5 | |
A | 98 | 47.99 | 16 | 9.6 | 5.0-7.5 | |
B | 95 | 46 | 15 | 9 | 5.0-7.5 |
The unique structure of Magnesium Sulphate Heptahydrate underpins its high solubility and stability.
Chemical Formula: MgSO₄·7H₂O
Molecular Weight: 246.47 g/mol
Hydration: Contains seven water molecules per magnesium sulfate unit, contributing to crystal stability and solubility.
| Property | Description |
|---|---|
| Form | Colorless or white crystalline powder or granules |
| Solubility | Highly soluble in water, insoluble in alcohol |
| Odor | Odorless |
| Taste | Slightly bitter |
| Crystal System | Orthorhombic |
The heptahydrate form ensures a stable lattice with water molecules bound to Mg²⁺ ions.
This hydration enhances solubility, making it ideal for rapid magnesium supplementation in agricultural or pharmaceutical applications.
The orthorhombic crystal system contributes to mechanical stability during storage and transport.
Technical parameters ensure consistency and suitability for industrial and commercial applications.
| Parameter | Specification | Test Method |
|---|---|---|
| MgSO₄ Content | ≥99% | Titration |
| Magnesium (Mg) | 9.8–10.5% | ICP-OES / Atomic Absorption |
| Water Insoluble Matter | ≤0.05% | Gravimetric |
| Heavy Metals (Pb, Cd, Hg) | ≤10 ppm | ICP-MS |
| pH (1% Solution) | 5–7 | pH Meter |
| Loss on Drying | 12–13% | Thermogravimetric Analysis |
Each batch is accompanied by a Certificate of Analysis (CoA).
Random sampling ensures compliance with pharmaceutical, food, or industrial-grade standards.
Continuous monitoring of moisture content prevents caking or degradation.
Magnesium Sulphate Heptahydrate is widely recognized for its eco-friendly properties, making it suitable for sustainable applications.
| Standard | Requirement | Relevance |
|---|---|---|
| REACH | Registration, Evaluation, Authorization, Restriction of Chemicals | Ensures safe chemical handling in Europe |
| RoHS | Restriction of Hazardous Substances | Confirms absence of heavy metals for safe industrial use |
| ISO 14001 | Environmental Management System | Promotes sustainable production and handling practices |
Biodegradable and non-toxic, safe for soil and water systems.
Low heavy metal content minimizes environmental contamination.
Complies with agricultural and pharmaceutical environmental regulations.
Customer feedback highlights the practical performance, quality, and reliability of Magnesium Sulphate Heptahydrate.
Farmers report improved crop yield and magnesium content in soil.
Water-soluble crystals dissolve quickly, facilitating foliar and soil applications.
Used as a raw material in medicines and dietary supplements.
High purity ensures consistency and regulatory compliance.
Industries using MgSO₄·7H₂O for chemical processing or pH adjustment note excellent solubility and stability.
Suppliers providing certified batches improve operational efficiency and reduce batch-to-batch variability.
Customer Feedback Summary Table:
| Industry | Feedback | Key Benefit |
|---|---|---|
| Agriculture | Rapid dissolution, improved soil Mg | Increased crop yield |
| Pharmaceutical | High purity, consistent quality | Regulatory compliance |
| Chemical Industry | Stable solubility and composition | Efficient process control |
| Food Industry | Safe additive, tasteless | Product quality assurance |
Magnesium Sulphate Heptahydrate has versatile applications across multiple industries.
Corrects magnesium deficiency in soil.
Promotes chlorophyll formation and photosynthesis.
Can be applied via soil amendment or foliar spray.
Used in laxatives, mineral supplements, and food additives.
Provides essential magnesium for human nutrition.
Serves as a neutralizing agent in chemical processes.
Used in water treatment, cement additives, and chemical synthesis.
Proper handling preserves crystal integrity and chemical effectiveness.
Store in a cool, dry, ventilated area.
Keep containers tightly closed to prevent moisture absorption.
Avoid contamination with acids, metals, or other chemicals.
Use protective gloves and dust masks.
Avoid inhaling fine powders.
Ensure safe handling to prevent caking or loss of efficacy.
High Purity: Ensures consistent chemical performance.
Eco-Friendly: Compliant with environmental standards.
Highly Soluble: Rapid dissolution in water for agricultural and industrial use.
Versatile: Suitable for agriculture, pharmaceuticals, food, and chemical industries.
Certified Quality: Accompanied by CoA and batch testing.
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