Magnesium Sulfate (Epsom Salt) Overview
Magnesium sulfate heptahydrate (Epsom salt), industrial and agricultural grades with 99.5%+ purity. Buyers usually compare grade, packing, destination port, sample approval and required documents before confirming a quote.
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Specifications
| Item | Details |
|---|---|
| Form | Magnesium sulfate heptahydrate |
| Grade | Industrial / Agricultural |
| Purity | 99.5%+ |
| Packing | 25kg bags |
What Buyers Confirm Before Ordering
Before sampling or bulk supply, most importers confirm the target grade, particle form, export packing, destination market documents and whether the product is intended for industrial or food-related use.
Export Packing and Documents
Magnesium Sulfate Supplier Proof and RFQ Checklist
Before sending a purchase order, buyers should confirm the supplier can match the exact heptahydrate or anhydrous grade, MgSO4 content, crystal size, agriculture or industrial use, and packing moisture control. This section is designed for procurement teams comparing real bulk supply, not casual retail purchases.
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Get a Quote
Share the target purity, packing, destination port and order quantity. We will reply with a quotation soon.
Bulk Buyer Decision Guide
Magnesium Sulfate Procurement Decision Guide
Use this section to qualify magnesium sulfate supplier offers before requesting a formal quotation. The goal is to compare suppliers on the same basis: grade, specification, application fit, packing, documents, delivery terms and after-sales communication.
Grade and Specification Checks
Do not compare price only by product name. Confirm the exact grade and the limits that affect your process.
- MgSO4 content
- MgO equivalent
- moisture
- particle size
Packing and Export Documents
Ask for packing photos, label language and palletizing details before shipment. Final loading quantity should be confirmed by product density, bag size and destination requirements.
- 25kg bags
- 50kg bags
- jumbo bags by order
- COA, SDS, packing list, invoice and other export documents by order requirement
Common Grade Comparison
| Option | Buyer check |
|---|---|
| Magnesium sulfate heptahydrate | Confirm assay, appearance, moisture and target application before comparing offers. |
| anhydrous magnesium sulfate by order | Confirm assay, appearance, moisture and target application before comparing offers. |
| fertilizer or industrial grade | Confirm assay, appearance, moisture and target application before comparing offers. |
Application Fit
| Application | What to confirm |
|---|---|
| Fertilizer Blending | Share process conditions, target market and required documents so the correct grade can be matched. |
| Agriculture | Share process conditions, target market and required documents so the correct grade can be matched. |
| Industrial Processing | Share process conditions, target market and required documents so the correct grade can be matched. |
| Feed Or Technical Uses By Requirement | Share process conditions, target market and required documents so the correct grade can be matched. |
RFQ Checklist
Send product name, grade, quantity, destination port, packing, trade term, required documents and target delivery window.
Price Factors
Bulk price changes with assay, form, packing, order volume, freight route, pallet requirement and seasonal demand.
Sample Review
For new suppliers, request a sample or recent COA before bulk order confirmation when your application is sensitive.
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Buyer Notes for Magnesium Sulfate Procurement
Separate agriculture and industry
Agriculture, fertilizer blending and industrial uses can require different magnesium sulfate forms, solubility and packing. Tell the supplier whether the order is for fertigation, blending or processing.
Review solubility and size
Confirm MgSO4 assay, magnesium content, water solubility, particle size and appearance. These details affect dissolution speed, mixing behavior and user acceptance in repeated purchases.
Confirm route and packing
For export shipments, ask for moisture-resistant bags, pallet details and container loading photos. This is especially useful when the destination has long transit time or humid storage conditions.
Repeat Order Control for Magnesium Sulfate
For magnesium sulfate repeat orders, keep the same grade name, assay basis, particle size range, packing and COA format in your purchase file. If the application changes from fertilizer blending to fertigation or industrial processing, confirm the specification again instead of reusing an old quotation without review.
New Magnesium Sulfate Procurement Articles
Use these related buyer guides to compare grades, applications, packing, documents and bulk quotation basis before ordering Magnesium Sulfate.
Magnesium Sulfate Technical and Buyer Guides
Twenty-eight consolidated resources covering magnesium sulfate heptahydrate specifications, grades, applications, comparisons, sourcing, documents and logistics.