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White magnesium sulphate crystals

Product Detail

Magnesium Sulphate (Epsom Salt)

MgSO4 heptahydrate or monohydrate for magnesium and sulfur nutrition in foliar and soil programs. Assays are typical for evaluation and confirmed per batch COA.

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What it is / When to use

Magnesium and sulfur source for visible deficiency correction

RunziChem supplies bulk Magnesium Sulphate (Epsom salt) as heptahydrate (MgSO4·7H2O, 99.5%) and monohydrate (MgSO4·H2O), a water-soluble magnesium and sulfur source for foliar, soil, and soluble crop-nutrition products. White crystal, packed in 25/50 kg export bags, jumbo bags, and custom packaging, with TDS, batch COA and SDS on request.

  • What it is Magnesium sulphate heptahydrate / monohydrate.
  • When to use Use it where crop programs need Mg correction, sulfur contribution, or a soluble raw material for magnesium-containing blends.
  • Honesty note specifications are typical for evaluation; final values are confirmed per batch COA.
Mg + SMagnesium Sulphate (Epsom Salt)
White magnesium sulphate crystals

Specification

Typical specification for buyer evaluation

Formula, CAS, purity, appearance, content, solubility, packaging, and document availability are shown for procurement screening. Final values are confirmed per batch COA.

ProductMagnesium Sulphate (Epsom Salt)
Chemical nameMagnesium sulphate heptahydrate / monohydrate
FormulaMgSO4·7H2O; also MgSO4·H2O
CAS10034-99-8 (heptahydrate) / 14168-73-1 (monohydrate)
Grade/Purity99.5% heptahydrate grade; monohydrate also available
AppearanceWhite crystal
Content/AssayMg + S source; typical 99.5% grade confirmed per batch COA
Solubility113 g/100 mL water at 20 °C (heptahydrate); 35.1 g/100 mL on anhydrous MgSO4 basis
ApplicationsCorrects magnesium deficiency; foliar and soil application routes
Packaging25 kg / 50 kg export bags, jumbo bags, and custom packaging on request
DocumentsTDS, current batch COA, and SDS available on request
Indicative priceUS$70–500 per metric ton, FOB Qingdao. Final quotation depends on grade, volume, and packaging — confirm per inquiry.

Applications

Where Magnesium Sulphate (Epsom Salt) fits

Confirm crop, rate, compatibility, and local label requirements before application.

Magnesium deficiency

Used to correct Mg deficiency symptoms when local agronomy and crop testing confirm need.

Foliar formulas

Water-soluble crystals can be used in foliar-grade products after compatibility checks.

Soil nutrition

Fits soil programs where magnesium and sulfur are required as a straightforward raw material route.

Soluble blending

Can be specified for water-soluble fertilizer or trace-element blend manufacturing.

Hepta or mono grade

Heptahydrate is listed at 99.5%; monohydrate can be discussed by target spec.

Export packaging

Available in 25 kg / 50 kg bags, jumbo bags, and custom packaging on request.

Packaging & Documents

Export packaging with batch-level documents

RunziChem supports standard export bags and procurement documents for review before order confirmation.

  • Packaging 25 kg / 50 kg export bags, jumbo bags, and custom packaging on request.
  • Documents TDS, current batch COA, SDS, packing list, and shipment documents on request.
  • Quality system ISO 9001-certified quality management, with final product values confirmed by batch COA.

Procurement note

Send target grade, annual volume, destination port, packaging preference, and application route. The export team can reply with the current specification, document set, and quotation.

25 kg 50 kg Jumbo bags Custom pack TDS COA SDS

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Buyer FAQ

Magnesium Sulphate (Epsom Salt) questions

What is the difference between the heptahydrate and monohydrate grades?
Heptahydrate is MgSO4·7H2O (CAS 10034-99-8, MW 246.47), the classic Epsom-salt crystal carrying more water of crystallisation. Monohydrate is MgSO4·H2O (CAS 14168-73-1, MW 138.38), a more concentrated, lower-moisture form. RunziChem supplies both; choose by your target magnesium content and blend stability.
Why choose magnesium sulphate as a magnesium and sulfur source?
Magnesium sulphate dissolves freely in water, delivering both magnesium and sulfur in plant-available sulfate form. That makes it a straightforward raw material for foliar sprays, fertigation, drip lines, and soil correction of magnesium deficiency, as well as for soluble fertiliser and trace-element blends.
Is a fine micro-powder grade available for foliar formulas?
Yes. Alongside the standard crystal, RunziChem can supply magnesium sulphate as a fine 200–500 mesh micro-powder for faster dissolution and absorption, plus a granular grade for soil and basal application. Confirm the target mesh, grade, and application route with the export team.
Are the listed assay and specification values guaranteed?
The values shown here are typical or representative for buyer evaluation. The current batch certificate of analysis confirms the final assay, appearance, moisture, and quality. Request the TDS, COA, and SDS for procurement, formulation, and safety review before order.

Request Magnesium Sulphate (Epsom Salt) documents and price.

Send annual volume, destination market, packaging, and application route. RunziChem can provide TDS, current batch COA, SDS, and a formal quotation.

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