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HS Code |
165233 |
| Chemical Name | Sodium Selenate |
| Chemical Formula | Na2SeO4 |
| Molar Mass | 188.94 g/mol |
| Appearance | White crystalline solid |
| Odor | Odorless |
| Solubility In Water | Very soluble |
| Melting Point | 590 °C (decomposes) |
| Density | 3.098 g/cm³ |
| Ph Of 1 Percent Solution | approximately 9 |
| Cas Number | 13410-01-0 |
As an accredited Sodium Selenate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sodium Selenate packaged in a 500g amber plastic bottle, tightly sealed, labeled with hazard warnings, batch number, and purity information. |
| Shipping | Sodium selenate should be shipped in tightly sealed, corrosion-resistant containers, protected from moisture and incompatible materials. It is classified as a hazardous material, requiring appropriate labeling and documentation. During transport, it must be secured to prevent leaks or spills, in accordance with local, national, and international regulations for toxic substances. |
| Storage | Sodium selenate should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible substances such as strong acids and strong reducing agents. Store it away from heat and moisture. Ensure proper labeling and keep out of reach of unauthorized personnel. Use chemical-resistant shelving and avoid storing with food or animal feed. |
Applications of Sodium Selenate in Industrial ManufacturingSodium selenate serves as a critical additive and feedstock in tightly regulated manufacturing chains. Our production supports major industrial sectors by supplying high-purity selenate optimized for process yields, strict quality control, and downstream integration. The following application scenarios highlight established use cases, precise compliance routines, process parameters, and actual finished products demanded by global markets. 1. Micronutrient Fertilizer Additives for Crop BiofortificationCommercial fertilizer blenders use sodium selenate to fortify fertilizers with selenium, targeting crops grown in selenium-deficient soils. Agricultural engineers prefer it over selenite salts for its higher solubility and plant uptake efficiency, particularly in dryland cereal and forage farming. Upstream, precise dosing and homogenous blending are essential to avoid soil or crop toxicity, adhering to strict residue controls for food-grade agricultural supply chains. Selenium-fortified fertilizers support enhanced nutritional value in grains and animal fodders, directly impacting food security mandates. Industry compliance standards
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2. Trace Element Premix in Livestock and Pet NutritionSodium selenate operates as an essential selenium fortification ingredient in vitamin-mineral premixes and feed additives for ruminants, swine, poultry, and companion animals. Feed integrators select selenate forms for their high bioavailability and low inclusion rates, subject to limit controls to avoid selenium toxicity in animal tissue and milk. The manufacturing process demands accurate premix batching, dust minimization, and homogeneity validation to comply with food safety and animal health standards in domestic and export supply chains. Industry compliance standards
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Specialty and flat glass producers utilize sodium selenate in specific formulations to achieve color control through redox reactions during furnace melting. Selenate ions serve as oxidizers that reduce excess iron coloration and create pink to red hues in tableware, automotive, and architectural glasses. Manufacturers tightly govern selenate dosages and batch melting conditions, since trace-level contamination or imbalance directly influences optical quality and downstream glass cutting and finishing steps. Industry compliance standards
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4. Selenium Intermediate for API Synthesis in PharmaceuticalsPharmaceutical manufacturers use high-purity sodium selenate as an intermediate or reagent for the controlled synthesis of selenium-based active ingredients. Downstream, selenate enables the preparation of seleno-amino acids, diagnostic agents, or selenoprotein supplements manufactured under strict process containment and validated analytical protocols. Production requires validated traceability and quality assurance, with rigorous monitoring of heavy metals, endotoxins, and microbial levels to meet stringent pharmacopeial standards for finished drugs and health supplements. Industry compliance standards
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5. Metal Surface Treatment and Plating BathsElectroplating and metal finishing plants incorporate sodium selenate in controlled amounts to improve the performance of nickel and copper decorative plating baths. Selenate ions act as grain refiners during electrodeposition, which enhances surface appearance and corrosion protection in plated components. Process engineers need to tightly manage bath chemistry and waste streams to comply with heavy metal effluent restrictions, ensuring safe workplace handling and product traceability for automotive, electronics, and decorative hardware supply chains. Industry compliance standards
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6. Chemical Catalyst and Industrial Oxidation ProcessesIn the production of specialty chemicals, sodium selenate acts as a mild oxidizing agent or catalyst precursor for targeted organic and inorganic synthesis. Typical users include manufacturers of dyestuffs and chemical intermediates, where selenate enables step-wise oxidation at controlled rates. Operations demand rigorous containment, air monitoring, and catalyst recovery procedures to maintain worker safety and batch reproducibility. Downstream users enforce strict documentation and process audits to meet environmental, health, and product quality requirements for global chemical trade. Industry compliance standards
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Competitive Sodium Selenate prices that fit your budget—flexible terms and customized quotes for every order.
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Every batch of sodium selenate tells a story about chemistry, investment, and a real need for precision. In our facility, we don’t just make a white crystalline powder for a spec sheet — we manufacture a compound that ends up shaping many sectors, from agriculture to glass production, water treatment to feed supplementation. Over years in chemical manufacturing, we’ve learned how subtle adjustments in temperature, purity, and even packaging can affect every downstream use. There’s no mystery to sodium selenate, but there’s a lot of craft in getting it right, lot after lot.
Our sodium selenate runs as Na2SeO4, a form that achieves the highest solubility out of selenium salts. Consistency in crystal structure and low trace contamination make or break many applications. If a batch doesn’t meet our minimum guaranteed 99.0% purity, we rerun it. Typical models are available as both technical and feed grades, with purity ranging upwards (sometimes over 99.5% for those needing extreme consistency). Feed grade looks for strict limitations on heavy metals and soluble selenium, as animals respond with narrow tolerance windows. We don’t treat model codes as marketing spin—those numbers trace back to minute adjustments in filtration or drying times that we log for every lot. End users can trace their sample to the line it rolled out from, down to the hour.
Potassium selenate works, but our clients mostly stick to sodium selenate for cost efficiency and compatibility. The sodium version dissolves rapidly in water, settling in aqueous solutions without solvent residues or stubborn precipitates. We see very little dust-off during bagging, which means less waste for industrial users. Compared to sodium selenite, sodium selenate is more stable in both storage and use. A big advantage comes out in agriculture: plants absorb selenate’s selenium about three times better than selenite’s. This difference matters when a high-yield farm in western China or Australia needs every ppm of selenium tightly managed throughout a growing season.
Years ago, we would get calls from users complaining about off-color or slushy crystals from lower-grade imports. We responded the only way manufacturers can: by retooling parts of our purification line to cut sulfate and transition metal residues. Now, our sodium selenate batches run clear, hard, and consistent. We test each lot for iron, copper, nickel, excess halides, and especially arsenic and cadmium, since those metals travel with selenium in the ore. Feed and fertilizer customers care about this, because their products pass through regulatory hoops and, eventually, end up in the food chain. Every lot comes with a full analysis profile, because even a fraction of a gram difference in toxic elements can turn a sale into a recall.
Agriculture stands out as the largest outlet. Grain, wheat, and animal feed all draw selenium from sodium selenate blended into trace element fertilizers. The chemical’s high solubility means uniform metering in irrigation systems or feed mixers, letting farmers achieve selenium supplementation with predictable uptake. In our facility, we calibrate dosers to down to milligrams, because we know too much selenium can tip the balance from benefit to toxicity. The same goes for the glass industry. Slight variations in feedstock purity shift color and transmission characteristics in specialty glass manufacturing; technical grade sodium selenate is chosen there for its clarity and lack of contaminants.
Pharmaceutical and nutrition buyers walk our production floor to verify segregation from other selenium compounds, especially where sodium selenite or metallic selenium might get involved. Feed and fertilizer producers ask for batch certificates of analysis that go beyond the typical heavy metals scan; they want confirmation from an external lab. Sometimes these requests seem picky, but as a manufacturer, we know that skipping these checks exposes us (and the user) to real risk. We bring internal controls up to ISO and FAMI-QS standards. Traceability isn’t just a buzzword here. For every shipment, we can go back and prove chloride or iron never topped acceptable limits.
Manufacturers have a front-row seat to the safety issues these chemicals raise. In sodium selenate, even a few parts per billion can mean the difference between benefit and health risk. Operators wear specialized protective gear in unloading and mixing. Our storage is designed to keep sodium selenate dry and isolated from acids or reducers. Early on, some new hires underestimated the risks, but we insist on hands-on training, not just a stack of safety data sheets. Residual dust exposure is monitored by sampling plant air and using local exhaust, because repeated exposure, even at low levels, builds up. We take these precautions seriously because no batch is worth risking a team member’s long-term health.
Turning selenium dioxide to sodium selenate sounds simple on paper, but in practice, every step needs patience. The process starts with controlled oxidation, often running days on end, especially at scale. We dissolve the resulting selenium oxide in hot caustic, monitoring the dissolution rate to prevent hotspots that can ruin yield. Filtration and decolorization come next, using vacuum systems to avoid mechanical loss. From there, crystallization is set by timing, temperature, and even humidity in the storage area; slow growth yields the strong, glassy structure that shippers and end users prefer because it holds up in transit. Every step puts the spotlight on purity. We trade throughput for surety: better to hold a batch for an extra day than to rush and risk contamination.
After a decade and a half producing sodium selenate, we’ve spoken with hundreds of users in fertilizer plants, animal feed processors, researchers, and specialty manufacturers. Their priorities boil down to three things: consistency, safety, and price. Consistency, because shifting concentrations or batch-to-batch variations spell trouble for automated dosing systems. Safety, because selenium—beneficial at trace amounts—quickly crosses into toxic territory if mislabeled or mishandled. Price, because cost always matters, but only alongside reliability. We’ve found that manufacturers who cut corners at the level of reagents or in testing may undercut on price only to lose business after a single failed shipment or out-of-spec complaint.
Sodium selenite shows up in some of the same applications, but two points set selenate apart. Uptake through plant roots works best with selenate, due to its oxidation state. Selenite tends toward quicker leaching and sometimes lower bioavailability. From a production standpoint, selenite processes can produce more redox byproducts, forcing harder filtration cycles. Potassium or ammonium selenates show niche use but don’t match the market price or production scale of sodium. Our lines stay focused on sodium selenate for this reason—scale, quality, and reliability come together in this one product better than the field of alternatives.
Regulation around selenium is only getting stricter worldwide. Lawmakers address runoff due to its environmental persistence and toxicity to aquatic life. For us, this means continuously improving our waste management—scrubbing process streams, monitoring solid waste, and adjusting water discharge concentrations. Internally, we’ve set up closed-loop handling for most of our selenium intermediates, limiting emissions to trace levels. Some years ago, enforcement was patchy in some regions, letting substandard selenium products leak onto the market. Now, tight enforcement and buyer awareness put the spotlight on manufacturing practices. We see traceability audits requested far more often, not just paperwork but site walkthroughs and sample retesting. Genuine manufacturing guarantees that what leaves our plant meets specifications, no shortcuts, no “gray batch” blending.
Shipping sodium selenate isn’t as simple as loading up a container. High solubility means strong moisture barriers—double-layered bags, composite drums, and sealed liners. A small tear on a bag in transit can release not just dust but a regulated substance. We source stronger films for this reason, not to win fashion points but to limit risk in the real world. Each customer has a standing option for tamper-evident packaging and unique labeling to help trace a shipment if anything goes wrong in the chain of custody. Regional customers may request returnable containers, streamlining inventory and reducing wastage. For international shipments, we go the extra step with export-certified drums, especially because regulatory scrutiny is strict in Europe and North America.
Users run into questions, from optimal storage to field application methods. The most common question is about dosing: how to blend small, precise amounts into big-volume fertilizer mixers or animal feed troughs? Our team responds with straightforward advice—dilution in stepwise fashion with deionized water, mechanical agitation (not air bubbling), and using corrosion-resistant equipment for bulk operations. Test kits for field selenium are on hand, because real-world soils and feeds vary significantly in background concentrations. We offer on-site training sessions, not just to sell product but to pass on practical hands-on approaches that keep users safe and get the best uptake values. There’s no substitute for direct advice from the manufacturer; we’ve seen every mistake people can make in storage, dosing, or even paperwork, and we try to help customers sidestep those issues.
Buyers won’t take excuses for missed deadlines. Raw selenium sources can fluctuate, especially since much selenium comes as a byproduct of copper refining. We hedge supply through long-term contracts and multistage purification, keeping a reserve buffer for critical orders. Few people appreciate how much planning goes into keeping a year-round stable supply. Our purchasing and SMS systems track not just raw material specs but anticipated shipping delays, allowing us to communicate proactively with downstream clients. By running multiple parallel production lines, we rarely face a total stoppage, even if equipment maintenance or regulatory checks slow a portion of production.
Years in chemical manufacturing teach humility: leaks, electrical outages, or minor reagent impurities all create real-world complications. Sodium selenate can be unforgiving—overconcentration leads to rapid crusting, too rapid cooling turns crystals brittle. Listening to user feedback made us overhaul our quality control lab and invest in more robust plant environmental monitoring. Sometimes that means pausing production mid-batch until a spec is rechecked by a second tech. Downtime costs us, but it protects long-term trust. Customers notice; repeat business often tells us more about product quality than any ad campaign or sales pitch ever could.
We watch regulatory shifts on selenium closely. Green chemistry trends push us toward closed-loop water recycling and lower-energy drying technology. Some clients experiment with time-release formulations or microencapsulated blends, requiring shifts in baseline sodium selenate purity or granule size. Rather than treat these as burdens, we adapt, running pilot batches with alternate drying or blending steps. The next few years look set to reward manufacturers who can hit purity, consistency, and cost targets all while shrinking environmental impact. Our investments in new emission controls and tighter batch monitoring aren’t just for compliance, but to position ourselves as the first call whenever selenium regulations or market needs shift.
We think of sodium selenate as more than a commodity. Manufacturers like us stand apart from traders or repackagers because we know the provenance and process behind every drum or bag. When a client calls with a traceability claim, we don’t dig through third-party paperwork; we open up our digital maintenance records and lab notes, showing how a specific lot number mapped from raw selenium dioxide to finished sodium selenate. This direct connection gives confidence to both buyers and regulators. It helps us respond quickly to field issues, unexpected audits, or new industrial applications that demand slight tweaks to composition. Traders may sell the same tonnage, but the real value comes from the partnership built on the back of manufacturing plant experience and accountability.
The true difference in sodium selenate isn’t just what’s listed on an analysis sheet. It’s the reliability built into the raw material sourcing, the consistency across every lot, and the willingness to stand behind each kilogram leaving the plant. Clients value that. The real price of sodium selenate comes from the steady hand at every link—chemistry, packaging, logistics, and after-sale support. We focus on being that steady hand, because that’s what keeps us in business, shipment after shipment, year after year.
