|
HS Code |
267958 |
| Chemical Name | Ammonium Sulfate |
| Chemical Formula | (NH4)2SO4 |
| Molar Mass | 132.14 g/mol |
| Appearance | White crystalline solid |
| Solubility In Water | Highly soluble |
| Melting Point | 235 to 280°C (decomposes) |
| Density | 1.77 g/cm³ |
| Odor | Odorless |
| Ph In Aqueous Solution | 5.0-6.0 (1% solution) |
| Cas Number | 7783-20-2 |
| Boiling Point | Decomposes before boiling |
| Main Use | Fertilizer |
| Stability | Stable under normal conditions |
As an accredited Ammonium Sulfate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ammonium Sulfate is packaged in a 25 kg white woven polypropylene bag, labeled with product name, manufacturer, and safety instructions. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Ammonium Sulfate typically holds 25MT, packed in 25/50kg bags, suitable for efficient bulk transport. |
| Shipping | Ammonium sulfate is shipped in tightly sealed, moisture-proof packaging such as bags, drums, or bulk containers. It should be stored in cool, dry, well-ventilated areas away from incompatible substances. During transport, it is classified as non-hazardous, but should be handled carefully to prevent spills and environmental contamination. |
| Storage | Ammonium sulfate should be stored in a cool, dry, and well-ventilated area, away from moisture and incompatible substances like strong oxidizers. Keep the material in tightly sealed containers, preferably made from corrosion-resistant materials. Ensure the storage area is secure, clearly labeled, and protected from excessive heat or direct sunlight to prevent decomposition. Avoid storing near food or feed products. |
| Shelf Life | Ammonium sulfate has an indefinite shelf life if stored in a cool, dry, well-ventilated area, away from moisture and contaminants. |
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Purity 99%: Ammonium Sulfate with purity 99% is used in fertilizer manufacturing, where high purity ensures consistent nitrogen release for optimal crop yield. Particle size 1-3 mm: Ammonium Sulfate with particle size 1-3 mm is used in granular blending, where uniform granules enhance even nutrient distribution in soil. Water solubility 100%: Ammonium Sulfate with water solubility 100% is used in liquid fertilizer formulations, where complete solubility prevents clogging of irrigation systems. Melting point 235°C: Ammonium Sulfate with a melting point of 235°C is used in fire retardant materials, where high thermal stability contributes to effective flame suppression. Stability temperature up to 200°C: Ammonium Sulfate with stability temperature up to 200°C is used in industrial fermentation processes, where thermal stability maintains enzyme activity. Low heavy metal content (<0.001%): Ammonium Sulfate with low heavy metal content (<0.001%) is used in pharmaceutical excipient production, where minimal impurities ensure product safety and compliance. Moisture content ≤0.2%: Ammonium Sulfate with moisture content ≤0.2% is used in dry powder detergent formulations, where low moisture prevents caking and improves shelf life. Granular form: Ammonium Sulfate in granular form is used in soil conditioning, where the physical structure allows for slow and controlled nutrient release. Molecular weight 132.14 g/mol: Ammonium Sulfate with molecular weight 132.14 g/mol is used in laboratory reagent preparation, where accurate molecular properties enable precise analytical results. pH 5.5 (1% Solution): Ammonium Sulfate with pH 5.5 (1% solution) is used in buffer systems for biochemical assays, where correct pH control supports enzyme function. |
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Ammonium sulfate stands out as a reliable source of nitrogen and sulfur for a wide array of industries, from crop production all the way to water treatment and industrial applications. We have seen firsthand how consistency and purity make all the difference in daily plant operations and customer results. Our ammonium sulfate, manufactured here at our facility under tightly controlled conditions, consistently meets the highest expectations of solubility and chemical stability.
Manufacturing ammonium sulfate begins with the reaction between ammonia and sulfuric acid. This controlled chemical process produces large crystalline or granular ammonium sulfate, both types well-suited for specific industry needs. At each step, our operators monitor temperature, pH, and product formation to keep impurities out and maximize the conversion of starting materials. Our plant’s design includes efficient evaporation stages to concentrate and crystallize the product, followed by thorough washing and drying. Every step influences the product’s solubility, flow, and response in practical settings.
We prioritize low moisture and minimal insoluble matter, since field feedback shows that excess moisture leads to caking and application issues. The primary specifications we monitor: nitrogen content sits near 21%, with sulfur close to 24%. Achieving this target range every time means growers, formulators, and process engineers depend on reliable nutrient delivery and predictable reactions. Our laboratory team runs regular batch analyses, with routine checks for heavy metals and any foreign materials. Bringing the numbers to every load ensures each ton works exactly as expected in real-world jobs, not just on paper.
Crystalline ammonium sulfate flows consistently for liquid solutions and direct dissolution. Granular variants bring larger particle sizes, simplifying blending and broadcasting in both agriculture and fertilizer factories. Granular lots handle rougher transport and avoid dust, giving a better spread pattern in the field and reducing worker exposure to nuisance dust. Through direct feedback from our partners, the granulated material proves easiest in big-acre fertilizer programs where even distribution counts most. The crystal form continues to win favor in water solubility for fertigation and specialty formulations.
Our teams interact daily with customers using ammonium sulfate. In the field, we’ve observed nutrient deficiencies resolved quickly after application, especially in sulfur-deficient soils. Farmers confirm that side-dress or pre-plant use near seeds provides an early nitrogen and sulfur boost that supports young crops. Horticultural users prefer our higher-purity grade in fertigation, where particle size and absence of fines keep tanks and emitters clean and unclogged.
In water treatment, operators value how our product reliably supplies ammonia for chloramination processes, balancing nutrients and suppressing unwanted byproducts. Our industrial buyers use ammonium sulfate as a precipitant, rewarding our consistently fine particle distribution and rapid solubility. For any application, the biggest issues we’ve seen in the marketplace come from foreign-matter contamination and uneven granulation; both are controlled under our quality system built over years of manufacturing experience.
We get the questions every season: how does ammonium sulfate stack up for environmental goals? Ammonium sulfate supplies nitrogen in a form less prone to volatilization compared to urea, making use of both N and S more efficient under a wide range of conditions. Sulfate-sulfur proves immediately available to plants, skipping the lag time found with elemental sulfur sources. These factors matter most where nutrient stewardship programs demand both effectiveness and reduced losses to air or runoff.
On farms dealing with heavy rainfall or light, sandy soils, ammonium sulfate’s sulfate form won’t leach as quickly as nitrate-based alternatives, especially when placed in bands or incorporated. Our own fieldwork confirms soil tests point to higher sulfur levels post-application, and we see larger root zones and greener leaves where balanced applications occur. Meanwhile, nitrogen in ammonium sulfate is less likely to be lost through ammonia volatilization than urea, especially in neutral or slightly acidic soils. This supports responsible management plans while boosting yield potential and crop quality.
Direct conversations with mixers and blender operators taught us valuable lessons over the years: ammonium sulfate cooperates well in most NPK blends, but some combinations cause clumping or setting. We worked to reduce particle size variation and control moisture, producing a product that stores well alongside phosphates and potassium salts. Compatibility with urea, MAP, and DAP remains a strength—no nitrogen immobilization or reaction concerns. Ammonium sulfate does not mix well with calcium-containing materials, such as lime or CAN, due to the risk of gypsum formation, so we always advise against co-storage and recommend separate application passes when soil amendments come into play.
Our ammonium sulfate supports more than crop nutrition. In fermentation, pharmaceutical, and fermentation media, the requirement centers on purity. We manufacture high-purity grades free of coloring agents, heavy metals, or organics that can disrupt sensitive biological processes. Solubility and particle size are tightly controlled, avoiding clogs in process lines or unwanted precipitation in reactors. Our customers in these sectors value direct access to technical support, where our process engineers troubleshoot dosage, dissolution, and handling based on years of direct manufacturing experience.
Decision-makers often weigh ammonium sulfate against urea, ammonium nitrate, and various sulfur options. We build these comparisons into our advisory work, since field-level tradeoffs can shift with soil type, climate, and local prices. Urea, with its high N content, supports condensed hauling and reduced application rates, but it loses more nitrogen to volatilization unless incorporated quickly. Ammonium nitrate offers faster plant uptake and lower vapor losses, though regulatory control and security risks usually steer many large volume buyers away.
Elemental sulfur provides concentrated S inputs, but the time taken for microorganisms to oxidize and convert to sulfate hampers immediate uptake. Our product eliminates the lag, feeding crops quickly under most growing conditions. For acidifying effects, ammonium sulfate gives a reliable, moderate drop in soil pH over time, playing a key role where alkalinity reduces nutrient uptake or where water carries excess bicarbonate.
We learned early in our manufacturing history that ammonium sulfate keeps best in cool, dry buildings away from direct water or high humidity. Bulk storage needs strong, reinforced covers and ventilation to stop caking and hardening. In fertilizer plants, moisture control makes the difference between smooth flowing hoppers and hours lost to cleanup, so we monitor particle moisture and screen out fines that can hang in dead spots or attract dampness. Teams receive guidance on PPE, especially eye and respiratory protection when handling larger quantities, since fine dust remains an irritant for unprotected staff. Our experience shows that with clean, dry storage and simple safety precautions, ammonium sulfate presents few hazards compared to many other industrial chemicals.
Farmers and large-acre managers are under increasing pressure to improve environmental outcomes while keeping production high. In our opinion, ammonium sulfate lines up with these goals better than many alternatives. The ready availability of sulfate for crops translates to less risk of off-target loss and avoids surprises from slow nutrient response. The stable ammonium form, in contrast to nitrate-based fertilizers, holds up better in wet conditions without leaching quickly from root zones—something we confirmed by tracking fields over several rainy seasons. Field trial comparisons run by customer cooperatives showed clear gains in protein, oil seed filling, and yield levels where balanced N and S nutrition came from ammonium sulfate blends.
For sustainability programs, our manufacturing data and frequent batch testing support traceability, and our customers appreciate a transparent record showing not just what is in the bag but how it was made. As part of the manufacturing team, we advocate for targeted, soil-tested applications, and offer application guides based on local settings. This is the best way we’ve found to close the loop from plant to crop and make every pound pay off in both yield and stewardship performance.
Regulation in our sector has only increased, especially for export and specialty uses. Every lot of our ammonium sulfate meets or beats the heavy metal limits set by international standards. Our plant process uses certified, traceable raw materials, and we document every batch’s content for customer audit purposes. Application in food and feed industries calls for further testing; we conduct regular dioxin, PCB, and microbiology screens, and make reports available for all food and feed grade materials. Our commitment to transparency comes from direct requests over the years by food manufacturers and water suppliers determined to meet tightening requirements.
Manufacturing ammonium sulfate presents real-world complications, from unpredictable raw material supply swings to moisture control in high-humidity regions. We learned to build inventory of critical spares for evaporation and pumping systems, since breakdowns halt the entire downstream process. Operator shifts include hourly checks for product temperature, particle size, and screen throughput since subtle shifts reveal developing issues before they affect bulk shipments. On the logistics side, proper bulk handling equipment and lined railcars keep knock-on storage problems from showing up at the end-user’s facility. Over time, it’s become clear that simplicity and attention to small details on site pay off for both factory efficiency and customer satisfaction.
Every product improvement stems from field and plant-level feedback. Customers asked for cleaner, dust-free ammonium sulfate to reduce eye and respiratory issues—our operations added second-stage screening and air-classification. High-purity users in fermentation and water treatment needed ever-lower metal and organics limits—plant staff responded with better acid purification and ammonia supply contracts. Greater granulation consistency came from slower cooling and adjusted spray rates, after consultation with large-scale blenders facing blend separation and spreading problems. These changes have taken years, but the results show in better returns for both us and our customers.
Customers come directly to our manufacturing team for troubleshooting, dosing, and quality assurance advice. We routinely visit field sites, mixing plants, and process facilities, helping fine-tune rate, placement, and handling to squeeze every advantage out of our product. Many times, simply improving storage or mixer calibration solves performance issues that look chemical or formulation-based. Our team’s willingness to share real-time advice, drawn from decades making and troubleshooting ammonium sulfate every day, separates us from traders or resellers who focus on paperwork instead of practical results. It matters to us that each load supports measurable business gains, not just tonnage shipped.
We have seen ammonium sulfate deliver real results across agriculture, water treatment, and industry. Differences between products in the market almost always boil down to the details of manufacture: purity, particle size, chemical consistency, and reliability in use. Every truckload leaving our facility carries a track record built over years of direct attention to process control, batch testing, and customer feedback. Our approach puts manufacturing expertise at the customer’s service, making ammonium sulfate more than just a commodity but a dependable tool for better productivity and environmental stewardship. With careful handling and an open line for direct technical support, we ensure our customers gain every benefit from a product proven in real-world operation.