Industrial Chemicals
Magnesium Sulphate
Magnesium sulphate (Epsom salt) is a highly soluble magnesium and sulphur source supplied in heptahydrate, monohydrate and anhydrous forms. Agricultural grade is used on magnesium-deficient soils and in fertigation; technical grades serve feed, chemical, construction and compounding applications.
Quick facts
- CAS number
- 10034-99-8 (heptahydrate) · 7487-88-9 (anhydrous)
- Formula
- MgSO₄·7H₂O / MgSO₄·H₂O / MgSO₄
- Appearance
- White crystal / powder / granular, odourless
- HS heading
- 2833.21
Customs classification depends on declared use and current regulation. Confirm the applicable code with your customs broker for your shipment.
Specification
Typical technical specification
Indicative values. This table shows typical published figures for this commodity. The controlling specification is the technical data sheet (TDS) and certificate of analysis issued for your order.
| Parameter | Value |
|---|---|
| MgSO₄·7H₂O (heptahydrate) | ≥ 99.5% |
| MgO content (heptahydrate) | ≥ 16.2% |
| MgSO₄ (anhydrous, as is) | ≥ 98.0% |
| Water insoluble matter | ≤ 0.05% |
| Chloride (as Cl) | ≤ 0.02% |
| Iron (as Fe) | ≤ 0.002% |
| Heavy metals (as Pb) | ≤ 10 ppm |
Grades and forms
Heptahydrate (7H₂O)
Agriculture, fertigation, bath salt
Monohydrate (H₂O)
Feed additive, granulation feedstock
Anhydrous
Chemical use, low-water systems
Applications
- Magnesium and sulphur fertiliser for field crops and orchards
- Fertigation and water-soluble fertiliser blends
- Animal feed magnesium supplement
- Bath salt and cosmetic raw material
- Chemical intermediate and magnesium compound feedstock
- Construction additive / magnesium cement systems
FAQ
Questions importers ask about this product
- What packing options are available for Magnesium Sulphate?
- 25 kg PP/PE laminated bag; 50 kg PP/PE laminated bag; 1000 kg / 1200 kg jumbo bag with liner; Optional palletised, shrink-wrapped loads. Private-label printing and buyer-specific shipping marks can be arranged.
- Can you supply Magnesium Sulphate to a specific specification?
- Yes. Send the grade, purity and any impurity limits your process requires and we will confirm what we can supply. Indicative specifications for our standard grades are listed on this page; the controlling values are those in the technical data sheet (TDS) issued for your order.
- Which documents are provided with a Magnesium Sulphate shipment?
- Commercial invoice, packing list, bill of lading, certificate of analysis for the batch, and the technical data sheet (TDS) and safety data sheet (SDS) for the product. Certificates for specific destinations can be arranged on request.
- What is the minimum order quantity?
- It depends on the specification, packing and destination. Tell us your requirement and target port and we will confirm the minimum quantity we can ship economically.
Enquire about Magnesium Sulphate
Grade, purity, packing, quantity and destination port is all we need to quote.