Magnesium Sulfate Heptahydrate (Epsom Salt) Manufacturer & Supplier
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.
HS Code 283321 – Magnesium Sulfate
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.
Magnesium Sulfate Heptahydrate Supplier
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
Why Choose Our Magnesium Sulfate Heptahydrate?
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.
Frequently Asked Questions
What is Magnesium Sulfate Heptahydrate?
Magnesium Sulfate Heptahydrate is the hydrated form of magnesium sulfate with the chemical formula MgSO₄·7H₂O. It is commonly known as Epsom Salt.
Is Magnesium Sulfate Heptahydrate water soluble?
Yes. It is highly soluble in water and is therefore suitable for preparing aqueous solutions and, where agronomically appropriate, for fertigation systems.
Can it be used for drip irrigation?
Yes, suitable agricultural grades can be used in drip irrigation and fertigation programs where magnesium and sulfur supplementation is required.
Can it be used for sprinkler irrigation?
Yes. Its high water solubility makes appropriate grades suitable for sprinkler-based fertilizer application, subject to the irrigation system and agronomic recommendations.
Is Magnesium Sulfate suitable for fruits?
It can be used as a magnesium and sulfur source for various fruit crops when soil or plant nutrition indicates a requirement.
Can Magnesium Sulfate increase fruit sweetness?
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.
What is the HS code?
The international 6-digit HS subheading is 283321 – Sulphates of magnesium. India commonly uses 28332100 as the tariff item.
Conclusion
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
Product Identification
| Parameter | Specification |
|---|---|
| Product Name | Magnesium Sulfate Heptahydrate |
| Common Name | Epsom Salt |
| Chemical Formula | MgSO₄·7H₂O |
| CAS Number | 10034-99-8 |
| Molecular Weight | 246.48 g/mol |
| HS Code | 283321 |
| Physical Form | Crystalline solid |
| Water Solubility | Highly water-soluble |
| Magnesium Source | Magnesium |
| Sulfur Source | Sulfate sulfur |
Magnesium sulfate heptahydrate is commonly supplied as a crystalline material and is readily soluble in water.
100% Water-Soluble Magnesium & Sulfur Source
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 Sulfate for Drip Irrigation and Sprinkler Irrigation
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.
Suitable Irrigation Applications
-
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.
Application in Fruits and Crops
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.

| Porduct Name | Magnesium sulfate |
| Part Number | RXSOL-94-1011-050 |
Company Details:....
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai , Chennai, Vizag, Kolkata, UAE , OMAN , CANADA and KENYA
| Phone | +91 22 20871200 - 1400 |
| Fax | +91 22 27612100 :::AOH :0091 9821214367 |
| mail@rxmarine.com | |
| Website | www.rxmraine.com |

| Component | Cas No | Weight | EC-No. |
| Magnesium sulfate | 7487-88-9 | 120,37 g/mol | 231-298-2 |


| Eye Contact | After eye contact: rinse out with plenty of water. Remove contact lenses. |
| Skin Contact | In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. |
| Swallowed | After swallowing: make victim drink water (two glasses at most). Consult doctor if feeling unwell. |
| Inhalation | After inhalation: fresh air. |
| Most important symptoms and effects, both acute and delayed | The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 |
| Indication of any immediate medical attention and special treatment needed | No data available |

| Suitable extinguishing media | Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. |
| Unsuitable extinguishing media | For this substance/mixture no limitations of extinguishing agents are given. |
| Special hazards arising from the substance or mixture | Sulfur oxides,Magnesium oxide Not combustible. Ambient fire may liberate hazardous vapours. |
| Advice for firefighters | In the event of fire, wear self-contained breathing apparatus. |
| Further information | Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system. |

| Personal Protection | Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8. |
| Enviromental Precaution | Do not let product enter drains. |
|
Methods and materials for containment and cleaning |
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts. |
| Reference to other sections | For disposal see section 13. |

| Handling | For precautions see section 2.2. |
| Storage conditions |
Tightly closed. Dry. Hygroscopic |
| Storage class | Storage class (TRGS 510): 13: Non Combustible Solids |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated |

| Eye/face Protection | Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses |
| Skin and body protection |
This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:KCL 741 Dermatril® L |
| Respiratory Protection | Required when dusts are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type P1 The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented. |
| Control of environmental exposure | Do not let product enter drains. |

| Physical state | Granular, powder |
| Appearance |
Form: granular, powder Color: white |
| Odor | Odorless |
| Odor Threshold | No information available |
| pH | ca.7,9 at 50 g/l at 25 °C |
| Melting Point/Range | 1.124 °C - (Lit.) |
| Boiling Point/Range | No data available |
| Flash Point | Not applicable |
| Evaporation Rate | No data available |
| Flammability (solid, gas) | The product is not flammable. |
| Flammability or explosive limits | No data available |
| Vapor Pressure | 0,1 hPa at 20 °C |
| Vapor Density | No data available |
| Density | 2,66 g/cm3 at 20 °C |
| Water Solubility | 300 g/l at 20 °C - completely soluble |
| Partition coefficient; n-octanol/water | Not applicable for inorganic substances |
| Autoignition Temperature | No data available |
| Decomposition Temperature | 1.124 °C - |
| Viscosity | Viscosity, kinematic: No data available Viscosity, dynamic: No data available |
| Explosive properties | No data available |
| Oxidizing properties | None |

| Reactive Hazard | No data available |
| Stability | The product is chemically stable under standard ambient conditions (room temperature) . |
| Conditions to Avoid | Hygroscopic no information available |
| Incompatible Materials | Strong |
| Hazardous decomposition products | In the event of fire: see section 5 |
| Hazardous Reactions | no information available |

Acute Toxicity
LD50 Oral - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 425)
Inhalation: No data available LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402)
Remarks: (in analogy to similar products)
The value is given in analogy to the following substances: potassium sulphate
| Skin corrosion/irritation | Skin - reconstructed human epidermis (RhE) Result: No skin irritation - 5 min (Regulation (EC) No. 440/2008, Annex, B.46) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: potassium sulphate |
| Serious eye damage/eye irritation | Eyes - Rabbit Result: No eye irritation (OECD Test Guideline 405) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: potassium sulphate |
| Respiratory or skin sensitization | Local lymph node assay (LLNA) - Mouse Result: negative (OECD Test Guideline 429) |
| Germ cell mutagenicity |
No data available Test Type: In vitro mammalian cell gene mutation test Test system: mouse lymphoma cells Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 476 Result: negative
|
| Carcinogenicity | No information available. |
| Reproductive toxicity | No information available. |
| Specific target organ toxicity - single exposure | No data available |
| Specific target organ toxicity - repeated exposure | No data available |
| Aspiration hazard | No information available. |
Additional Information
Repeated dose toxicity - Rat - male - Oral - 104 Weeks - NOAEL (No observed adverse effect level) - 256 mg/kg
Remarks: (in analogy to similar products) The value is given in analogy to the following substances: ammonium sulphate RTECS: OM4500000 Diarrhea, Vomiting, Central nervous system depression To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. Toxic effects are only to be expected at very high doses. However, when the product is handled appropriately, hazardous effects are unlikely to occur.
Therapeutically used substance. Handle in accordance with good industrial hygiene and safety practice.

| Toxicity to fish | static test LC50 - Pimephales promelas (fathead minnow) - 680 mg/l - 96 h (US-EPA) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: potassium sulphate |
| Toxicity to daphnia and other aquatic invertebrates | static test LC50 - Daphnia magna (Water flea) - 720 mg/l - 48 h (US-EPA) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: potassium sulphate |
| Toxicity to algae | static test EC50 - Chlorella vulgaris (Fresh water algae) - 2.700 mg/l - 18 Days Remarks: (in analogy to similar products) |
| Toxicity to bacteria | EC50 - Photobacterium phosphoreum - 84.000 mg/l - 30 min Remarks: (IUCLID) |
| Persistence and degradability | The methods for determining the biological degradability are not applicable to inorganic substances. |
| Bioaccumulative potential | No data available |
| Mobility in soil | No data available |
| Results of PBT and vPvB assessment | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |
| Other adverse effects | Other adverse effects |
| Component | log Pow |
| Acetic acid | -0.2 |

| Waste treatment methods |
Product See www.retrologistik.com for processes regarding the return of chemicals and containers, or contact us there if you have further questions. |

| UN number | ADR/RID: - IMDG: - IATA: - |
| Proper Shipping Name |
ADR/RID: Not dangerous goods IMDG: Not dangerous goods IATA: Not dangerous goods |
| Hazard Class | ADR/RID: - IMDG: - IATA: - |
| Environmental hazards |
ADR/RID: no IMDG Marine pollutant: no IATA: no |
| Packing Group | ADR/RID: - IMDG: - IATA: - |
|
Special precautions for user Further information |
Not classified as dangerous in the meaning of transport regulations. |

Safety, health and environmental regulations/legislation specific for the substance or mixture
This material safety data sheet complies with the requirements of Regulation (EC) No. 1907/2006.
Chemical Safety Assessment
For this product a chemical safety assessment was not carried out

| Other Information |
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and weassume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Rx Marine International has been advised of the possibility of such damages. DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable. |
| Magnesium sulfate |
| Magnesium sulfate |
| No information available. |
| No information available. |
| No information available. |