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Magnesium Sulfate Heptahydrate, commonly known as Epsom Salt, is a highly water-soluble magnesium and sulfur compound widely used in agriculture, horticulture, animal nutrition, aquaculture and industrial applications.
Magnesium Sulfate Heptahydrate – MgSO₄·7H₂O is supplied in various grades according to application requirements, including agricultural, feed, industrial and specialty grades.
Our Magnesium Sulfate Heptahydrate is available for bulk and commercial requirements and has been supplied since 1993, serving customers across agriculture, industrial and related sectors.
Magnesium sulfate is classified under HS Code 283321, commonly described as sulfate of magnesium. In India, the corresponding tariff classification is commonly shown as 28332100.
We supply Magnesium Sulfate Heptahydrate / Epsom Salt for agriculture, fertigation, horticulture, animal nutrition, aquaculture and industrial applications.
Our supply capability can support customers requiring:
Agricultural grade
Industrial grade
Feed-related grades, subject to specification
Bulk supply
Export supply
Customized packaging
Regular contract requirements
With supply experience dating from 1993, we focus on consistent product quality, commercial supply capability and application-oriented product selection.
Customers can request the appropriate TDS, SDS, COA, packing details and commercial quotation according to their application.
Magnesium Sulfate Heptahydrate is the hydrated form of magnesium sulfate with the chemical formula MgSO₄·7H₂O. It is commonly known as Epsom Salt.
Yes. It is highly soluble in water and is therefore suitable for preparing aqueous solutions and, where agronomically appropriate, for fertigation systems.
Yes, suitable agricultural grades can be used in drip irrigation and fertigation programs where magnesium and sulfur supplementation is required.
Yes. Its high water solubility makes appropriate grades suitable for sprinkler-based fertilizer application, subject to the irrigation system and agronomic recommendations.
It can be used as a magnesium and sulfur source for various fruit crops when soil or plant nutrition indicates a requirement.
Correcting a magnesium deficiency may improve crop performance, but fruit sweetness depends on many factors. Magnesium sulfate should therefore be considered part of a balanced crop nutrition program rather than a guaranteed sweetness-enhancing product.
The international 6-digit HS subheading is 283321 – Sulphates of magnesium. India commonly uses 28332100 as the tariff item.
Magnesium Sulfate Heptahydrate (Epsom Salt) is a versatile, highly water-soluble source of magnesium and sulfur with applications across agriculture, horticulture, fertigation, animal nutrition, aquaculture and industry.
Its excellent solubility makes it particularly valuable for drip irrigation, sprinkler irrigation and other water-based agricultural applications, while its chemical properties support a range of industrial uses including selected wastewater-treatment, mineral-processing, leather and paper applications.
For reliable commercial supply, customers should select the grade according to the intended application and request the corresponding COA, TDS and SDS before purchase.
Magnesium Sulfate Heptahydrate | Epsom Salt | MgSO₄·7H₂O | CAS 10034-99-8 | HS Code 283321
One of the major advantages of Magnesium Sulfate Heptahydrate is its excellent water solubility.
This makes it particularly suitable for applications where magnesium and sulfur need to be delivered through irrigation water or prepared as an aqueous solution.
It can be used in:
Drip irrigation
Sprinkler irrigation
Fertigation
Greenhouse cultivation
Horticulture
Fruit production
Vegetable crops
Field crops
Specialty agriculture
The suitability of a particular grade should be confirmed against the crop, irrigation-water quality and local agricultural requirements.
Magnesium is an essential plant nutrient and plays an important role in plant growth, including its role in chlorophyll and photosynthetic processes.
Because Magnesium Sulfate Heptahydrate dissolves readily in water, it can be incorporated into suitable fertigation and irrigation programs.
It is particularly useful where soil or crop conditions indicate a requirement for supplemental magnesium and sulfur.
Drip irrigation systems
Sprinkler irrigation systems
Fertigation systems
Greenhouse irrigation
Orchard irrigation
Commercial horticulture
Fruit plantations
Vegetable production
For South American agricultural markets, product selection, dosage and application should be adjusted according to local crop conditions, soil analysis and agronomic recommendations.
Magnesium Sulfate Heptahydrate can be used as a source of magnesium and sulfur for a variety of crops.
Potential agricultural applications include:
Fruits
Vegetables
Citrus
Grapes
Bananas
Tomatoes
Potatoes
Beans
Cereals
Oilseed crops
Commercial horticultural crops
Plantation crops
Adequate magnesium nutrition can support healthy plant development and photosynthetic activity.
For fruit crops, balanced nutrition is important for achieving good fruit development, size, quality and overall crop performance. Claims regarding increased fruit plumpness or sweetness should be considered crop- and nutrition-dependent, rather than guaranteed results.
Epsom Salt
Magnesium plays an important role in plant metabolism and chlorophyll formation. Where magnesium is deficient, correcting the deficiency can contribute to improved plant growth and crop performance.
Magnesium Sulfate can therefore form part of a balanced crop nutrition program designed to support:
Healthy foliage
Photosynthetic activity
Plant growth
Fruit development
Crop quality
Nutrient balance
Actual improvements in fruit size, plumpness and sweetness depend on the crop variety, soil condition, irrigation, climate and overall fertilizer program.
Magnesium sulfate is also used in animal nutrition and feed-related applications, depending on the required regulatory and feed grade.
Potential applications include:
Animal feed
Livestock nutrition
Poultry-related applications
Aquaculture
Mineral supplementation
Feed premixes and formulations
For animal feed and aquaculture, only material meeting the appropriate feed-grade specifications and applicable regulatory requirements should be used.
Magnesium is an important mineral in aquatic environments, and magnesium sulfate may be used in certain aquaculture and water-conditioning applications.
Potential uses include:
Aquaculture water management
Mineral supplementation
Water chemistry adjustment
Shrimp farming
Fish farming
Application rates should always be determined according to the species, water chemistry, salinity and aquaculture system.
Commercial specifications can vary according to grade and manufacturer. A typical analytical-grade reference identifies Magnesium Sulfate Heptahydrate as MgSO₄·7H₂O, CAS 10034-99-8, with molecular weight 246.48 g/mol and high water solubility.
For example, one published USP specification for magnesium sulfate crystals specifies an assay range of 99–100.5%, although this should not be treated as the specification of every commercial agricultural or industrial grade.
For commercial supply, the applicable TDS, COA and product grade specification should be used to establish purity, magnesium content, sulfur content, moisture, insoluble matter and trace-element limits.
Magnesium Sulfate Heptahydrate can be supplied in packaging suitable for agricultural, industrial and bulk applications, subject to order quantity and grade.
Typical commercial packaging may include:
25 kg bags
50 kg bags
Jumbo bags
Palletized bags
Bulk quantities
Packaging can be customized according to customer requirements and export destination.
Store Magnesium Sulfate Heptahydrate in a cool, dry and well-ventilated area.
Because hydrated magnesium sulfate can be affected by moisture and may cake during prolonged storage, bags should remain properly sealed and protected from excessive humidity.
Recommended storage practices include:
Keep containers tightly closed.
Protect from moisture.
Store on pallets where appropriate.
Avoid direct contact with water.
Keep away from incompatible chemicals.
Follow the product SDS for detailed handling requirements.
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