HS Code | 380541 |
| Chemicalformula | MgSO4 |
| Molarmass | 120.37 g/mol |
| Appearance | White crystalline powder |
| Solubilityinwater | 25.5 g/100 mL (20°C) |
| Meltingpoint | 1124°C (decomposes) |
| Density | 2.66 g/cm³ |
| Odor | Odorless |
| Casnumber | 7487-88-9 |
| Ph | 5.5–7.0 (50 g/L,water,20°C) |
| Boilingpoint | Decomposes before boiling |
| Refractiveindex | 1.62 |
| Stability | Stable under normal conditions |
As an accredited Anhydrous Magnesium Sulphate factory,we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White HDPE bag with clear labeling,contains 25 kg anhydrous magnesium sulphate,tightly sealed,moisture-resistant,with handling instructions displayed. |
| Container Loading (20′ FCL) | Container loading for Anhydrous Magnesium Sulphate (20′ FCL):Typically loaded in 25kg bags,totaling around 24 metric tons per container. |
| Shipping | Anhydrous Magnesium Sulphate should be shipped in tightly sealed containers,kept dry and protected from moisture. Store and transport in a cool,well-ventilated area,away from incompatible substances. Follow local regulations for chemical packaging and labeling. Handle with care to prevent spillage and avoid inhalation of dust during shipping. |
| Storage | Anhydrous Magnesium Sulphate should be stored in a tightly sealed container,in a cool,dry,and well-ventilated area. It must be kept away from moisture,acids,and incompatible substances. Ensure the storage area is designated for chemicals and clearly labeled. Avoid exposure to air for prolonged periods to prevent absorption of water and contamination. |
| Shelf Life | Anhydrous Magnesium Sulphate has a shelf life of 3-5 years when stored tightly sealed in a cool,dry place. |
Purity 99.5%:Anhydrous Magnesium Sulphate with purity 99.5% is used in pharmaceutical synthesis,where high purity ensures minimal contaminant levels in final drug products. Particle Size 0.5 mm:Anhydrous Magnesium Sulphate with particle size 0.5 mm is used in agricultural micronutrient formulations,where fine granularity allows for rapid dissolution and nutrient availability. Melting Point 1124°C:Anhydrous Magnesium Sulphate with a melting point of 1124°C is used in high-temperature industrial dehydration,where thermal stability supports efficient removal of water from organic solvents. Moisture Content <0.2%:Anhydrous Magnesium Sulphate with moisture content below 0.2% is used in analytical laboratories,where low moisture content guarantees accurate drying of sensitive samples. Bulk Density 0.8 g/cm³:Anhydrous Magnesium Sulphate with bulk density 0.8 g/cm³ is used in chemical manufacturing,where optimal density improves ease of handling and storage. Stability Temperature 350°C:Anhydrous Magnesium Sulphate stable up to 350°C is used in polymer resin processing,where high stability temperature ensures consistent dehydration performance. Solubility 36 g/100 mL (at 20°C):Anhydrous Magnesium Sulphate with solubility of 36 g/100 mL at 20°C is used in laboratory reagent preparation,where high solubility enables rapid solution formulation. Heavy Metal Content <5 ppm:Anhydrous Magnesium Sulphate with heavy metal content below 5 ppm is used in food additive applications,where low heavy metal presence assures food safety compliance. |
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At our chemical plant,we’ve spent decades handling the fine details of magnesium salts,shaping our anhydrous magnesium sulphate into a product we trust for performance batch after batch. Every sack and every shipment draw from real-world learning on the factory floor,feedback from industrial-scale users,and constant supervision of purity levels. Our manufacturing lines operate under strict monitoring,always targeting a magnesium sulphate with the consistent quality that large-scale agriculture,chemical synthesis,and specialty industries demand.
Magnesium sulphate—known to chemists by its formula MgSO4—shows up in various hydration states. Ours leaves the drier belt as the anhydrous grade,a fine,white,free-flowing powder without a trace of moisture locked within its crystals. This “anhydrous” form fits into applications where every bit of water content matters,and where even small hydration can change critical results.
We’ve chosen the anhydrous grade for a reason. Regular testing confirms contents of magnesium and sulphur meet or surpass internationally recognized benchmarks. In each batch,the magnesium content sits above 16 percent by weight,with sulphur topping 32 percent. Chloride and heavy metal impurities get squeezed down to parts per million or lower. Because the powder is made strictly from selected raw materials—often processed from natural magnesite or refined brines—there’s no accidental cross-contamination. Our finished product keeps a low loss on ignition and leaves little or no residue,so customers can trust in the mineral without worrying about filler or hidden byproducts.
Particle size control matters. Some users want the finest powders possible,something that can dissolve quickly in solvents or spread evenly in powders. Others prefer a slightly more granular texture,especially in bulk drying or blending operations. Our systems adapt to those needs,though demand for a free-flowing,dust-free powder remains the norm. Each grade leaves our factory after it clears a rigorous round of moisture and particle size testing,ensuring genuine anhydrous character and avoiding the “caking” that often plagues lower-grade competitors.
In the chemical world,there’s never a “universal” raw material. Still,anhydrous magnesium sulphate has earned its place as a quiet workhorse. We see most demand from industries that need absolute control over moisture. Anhydrous magnesium sulphate’s ability to pull water from batches or mixes makes it a favorite desiccant in organic synthesis,drying solvents or gases in pharma and laboratory applications,and even protecting moisture-sensitive pigments in high-value coatings.
Agriculture won’t settle for the hydrated version if moisture content throws off a fertilizer blend or if liquid spreads clog lines. Here,the anhydrous powder can slip into blends and fortify soils without introducing unwanted clumping or dilution. Magnesium supplies are critical for plant chlorophyll formation,and sulphur has grown more important as modern fertilizers limit the “hidden” sulphur farmers once got from less-processed products. Our customers reach out for the anhydrous grade so their compounding results never suffer from uneven distribution or accidental caking.
Textile finishers,pulp and paper mills,and some dyeing shops draw from the same supply,counting on the salt’s high solubility and absence of contaminants. Where strict dryness or reactivity is needed,they steer away from hydrated variants. Often,customers report better outcomes on final product purity and less “unknown interference” during large-scale processing. The result:less wasted raw materials,fewer process adjustments,and less downtime in the long run.
Even the food and pharmaceutical worlds—when they call for feed-grade or higher-purity anhydrous magnesium sulphate—keep a close eye on trace contaminants. For us,this means constant analytical control and full traceability back through the supply chain. We invest in sectioned production lines and dedicated storage to avoid any hint of cross-contamination. Every time a food blender allows a new ingredient,they look to our certificate of analysis not for vague reassurance,but for traceable data verified by independent assay.
Many businesses still reach for magnesium sulphate “heptahydrate”—the classic Epsom salt—since it’s easier to store and ship for general use. In bulk trade,it comes wet,with seven molecules of water binding to every magnesium sulphate. Some suppliers sell the “monohydrate” grade,holding just one molecule of water for each formula unit. These hydrate grades can work well in some fields,but there’s a reason true anhydrous stands alone for precision work and heavyweight drying performance.
With anhydrous,you avoid accidental dilution. Any moisture baked into a hydrate and tossed into a dry mix can set off unintended reactions or degrade shelf life. Moisture-sensitive pharmaceuticals or specialty chemicals suffer,not just in terms of yield,but in safety and long-term stability. Hydrates can attract more water from the air,set off runaway caking,and clump inside process feeders or packaging lines. In our anhydrous batch,each sack leaves the drier sealed and sampled;random bag checks across warehouses still read below 0.8 percent moisture,even after months in storage.
In industrial drying or laboratory synthesis,hydrated magnesium sulphate tends to give up moisture less predictably. We’ve seen how labs that try using Epsom salts as a desiccant run into trouble:the processes slow,water release isn’t complete,and there’s leftover residue. Our anhydrous grade consistently reaches the very low humidity targets that precise syntheses demand,and without introducing additional water into the system.
Physical appearance also marks a clear difference. Anhydrous magnesium sulphate we make flows easily and never sticks together,even in humid climates. It spreads smoothly in automated mixers and leaves almost no dust behind. Hydrates are much bulkier and wetter-feeling,resulting in handling challenges and inconsistent dispensing. For manufacturers who care about process speed and cost,choosing the right grade cuts rework,waste,and unscheduled maintenance.
Commercial-scale users never face a one-size-fits-all solution. One of the main challenges is shipping and storing a product that always wants to pull water from the air. Our answer starts where our packaging line meets real-world shipping lanes. Weather-tight,multilayer bags and drum containers keep the powder dry on its journey. Every round of transit simulation shows that our standard packaging holds up to weeks at sea or months on warehouse racks.
Industrial demand cycles swing all year long,and storage times can stretch. Poor packaging means more caking,less free-flowing powder,and—over time—hard product at the bottom of a silo. We’ve spent years improving both our sealing process and batch traceability. If a shipment ever reveals excess moisture or caking,we check sealing and humidity logs,track the warehouse,and audit handling procedures. Correction happens at the source;we don’t “just replace” the bad bags without learning from the event.
Quality holds steady only when upstream raw materials are genuine. Magnesium comes from a wide mix of mineral sources—magnesite ore,sea water,industrial brines. We source magnesium first from suppliers with a proven history:known content,zero unexpected heavy metals,and full documentation. Each incoming shipment lands in our own quality control lab before it touches the blending or drying line. In times when global supply faces political or transportation instability,having this network keeps our customers supplied without sudden shocks in quality or specs.
Every facility upgrades its lines at some point. Our driers run modern temperature controls and airflow monitoring,but old-style equipment can still sneak in variability—so periodic recalibration beats out “set and forget” routines. Only trained operators adjust those controls. Automated sensors flag any off-spec batch. Final product that doesn’t meet target moisture or magnesium content is reworked,not blended or “averaged out,” because we know precisely dosed mixes demand exactly measured raw materials.
Some customers shift needs suddenly,swinging from powders targeted for stock feeds into high-solubility grades for spray fertilizer. Our custom sieving and blending options grew from dozens of small requests. New customers enter a dialogue with our product engineers,matching their machines and batching routines with the right particle range and packaging for their workflow. This communication shapes products grounded in daily use,not in laboratory trial runs alone.
On the documentation side,regulations never slow down. Markets that take food or pharma-grade magnesium sulphate demand up-to-date certifications and batch records. Our quality team follows a documentation process that lets clients track each batch back to its original production run,resolving inquiries or concerns in days,not weeks. We meet HACCP,FAMI-QS,ISO standards—any leading customer wants a copy on file,and we provide these instruments in updated,ready-to-audit form.
Like any mineral plant,our operations balance product output with environmental care. Magnesium and sulphur themselves are natural elements,widely found in soil and water. Used responsibly,magnesium sulphate poses little risk to air or groundwater. Still,the production process—especially mining and refining of magnesite or brine—can threaten local ecosystems if shortcuts occur.
Since regulations tightened worldwide,we made a choice to audit upstream suppliers for best environmental practice,not just lowest raw material cost. Our wastewater lines feed into multi-stage treatment facilities,neutralizing effluents and catching particulates before they leave the grounds. Air emissions from the drier stage undergo scrap recovery,and dust collection reduces off-gas to below legal thresholds—all while aiming to exceed local standards rather than meet the minimum legal line.
Warehouse workers and mixers know that proper personal protective equipment prevents unnecessary exposure. The dry,fine powder demands dust masks and good ventilation. We hold regular staff training and don’t send bulk shipments to customers who can’t guarantee safe offloading. Those steady efforts mean both our staff and our customers work in safer environments.
As industries now face stricter waste standards,more customers ask about closed-loop and circular economy solutions. We’ve assisted bulk users in recycling packaging and,in some regions,run pilot batch return programs. These moves keep extra plastic and paper out of landfills,cut end-user costs,and strengthen reputation in a market that increasingly values sustainability alongside technical merit.
The lessons about quality most often learned the hard way are the ones that stick. The most defeat comes from one-off mistakes,such as batches handled in wet warehouses or supplies running low on a critical day. Our response always returns to preventive action:tight process control,raw material tests,and the accountability that follows each bag out the door. Customers shouldn’t discover a problem through their own failures;the fault lines are caught today,not tomorrow.
We also keep a customer complaint log—not for bureaucratic reasons,but because every reported off-spec shipment can hint at plant-level improvement. Several years back,a shipment of magnesium sulphate arrived at an auto parts plant clumped into unusable blocks. A review of the batch paperwork pointed to condensation on the loading dock. After weeks of digging,we overhauled our packaging plant’s humidity control and set a repeat staff audit. These events,although costly,fed back into better handling and lessened future risk.
Analytical support for client labs also stands as an ongoing service. We share analytical methods,provide reference samples,and occasionally co-test raw materials to diagnose cross-lab differences. This transparency builds trust,so customers can back up their process changes with hard data,not promises.
In a competitive market,many producers cut corners on documentation or drift from full-disclosure safety practices. We insist on closing the loop,so each sack’s origin and parameters are never in doubt. End users should always be able to ask,“What’s in this batch?”—and get more than a vague assurance in response.
Magnesium sulphate,as basic as it seems,sits in the middle of industry trends pushing for more specialized,high-purity mineral inputs. Clients from electric battery makers,flame retardant formulators,and pharmaceutical start-ups each look for niche performance,not just “white salt” by the ton. Automated process controls and advanced inline spectrometry now catch process errors in real time,not just after-the-fact through lab assay. These systems drive tighter tolerance for both impurity and grade control.
We also engage closely with technical consortia and universities,trialing new drying,refining,or packaging methods. Targeted R&D on lower-energy dehydration,closed-circuit dust recycling,and digital lot tracking continue to shape next-generation products. Markets in animal nutrition and fortified human food show rising scrutiny;so every innovation that cuts batch variability and boosts purity pays off on both regulatory compliance and customer trust.
Technical documentation,long prized by only food or pharmaceutical sectors,is now sought even by fertilizer or industrial-grade customers,all wanting full test reports before unloading a container. This push keeps us sharpening our quality approach,expanding documentation,and rolling out batch test data as routine,not exception. Clear labeling,reflective of production reality,continues to smooth supply chain flow—no batch gets shipped without its full record attached.
From a manufacturer’s desk,the difference between an average magnesium sulphate and a top-quality,truly anhydrous grade comes down to constant care,consistency,and a willingness to invest in real solutions. The cost of cutting corners appears in lost batches,clumped product,failed certifications,or shaken customer confidence. Foresight on source materials,packaging,transportation,and testing takes more effort up front,but it pays off every day in business earned and repeat orders kept.
Our commitment to the product runs deeper than a formula. Every ton of anhydrous magnesium sulphate rolling out our gates carries the mark of process integrity,robust engineering,and strict environmental stewardship. We take pride in building a material that doesn’t just meet a chemical spec sheet,but proves itself batch after batch in the difficult environments required by modern industries.
This is not just another “commodity mineral.” It’s a catalyst,a foundation for precision process,essential for competing in a world of tightening tolerances and rising expectations. Our technical teams and factory floor staff stay committed to refining this product—even after decades of production—cementing our promise to deliver real reliability and value for every kilogram that crosses to your side of the supply line.