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Ammonium Phosphate Dibasic

    • Product Name Ammonium Phosphate Dibasic
    • Alias Diammonium Phosphate
    • Einecs 231-534-3
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    419716

    Chemical Name Ammonium Phosphate Dibasic
    Chemical Formula (NH4)2HPO4
    Cas Number 7783-28-0
    Molar Mass 132.06 g/mol
    Appearance White crystalline solid
    Solubility In Water 58 g/100 mL (25°C)
    Melting Point 155 °C (decomposes)
    Density 1.619 g/cm³
    Ph Of 1percent Solution 7.8–8.2
    Odor Odorless
    Common Uses Fertilizer, flame retardant, food additive
    Stability Stable under normal temperatures and pressures

    As an accredited Ammonium Phosphate Dibasic factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 25 kg white plastic woven bag labeled "Ammonium Phosphate Dibasic," includes hazard symbols, batch number, manufacturer details, and safety instructions.
    Shipping Ammonium Phosphate Dibasic is shipped in tightly sealed, moisture-resistant containers, such as bags or drums. The packaging prevents contamination and absorbs moisture. It should be stored and transported in a cool, dry, well-ventilated area, away from incompatible substances and sources of ignition, following applicable regulations and safety guidelines.
    Storage Ammonium Phosphate Dibasic should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from moisture, incompatible substances such as strong acids and alkalis, and sources of ignition. Keep away from food and drink. Store on corrosion-resistant shelving and label clearly. Avoid storage with materials that can produce toxic fumes if mixed.
    Application of Ammonium Phosphate Dibasic

    Applications of Ammonium Phosphate Dibasic in Industrial Manufacturing

    Our manufacturing-grade Ammonium Phosphate Dibasic serves as a critical raw material in several tightly regulated industrial sectors. All downstream application scenarios presented below reflect established, technically verified industrial uses, with strict adherence to sector-specific quality and compliance expectations.

    1. Compound Fertilizer Production

    Professional fertilizer manufacturers use this phosphate as a phosphorus and nitrogen source in the formulation of complex NPK (nitrogen, phosphorus, potassium) fertilizers. The material integrates into granulation processes, supplying nutrients with controlled solubility to meet agronomic requirements for various crops. Downstream processes require tight quality checks at key blending and granulation steps, ensuring consistent field performance and regulatory compliance for global agricultural markets.

    Industry compliance standards

    • FAO Fertilizer Specifications
    • EU Regulation (EC) No 2003/2003 on Fertilizers
    • ISO 8157:2015 for Fertilizer Materials
    • Relevant USDA agricultural input standards

    Typical usage ratio

    • Ranges from 5% to 15% by total batch weight, adjusted for nutrient targets, crop type, and formulation balance among NPK components.

    Downstream process integration

    • Added during pre-mix blending before wet granulation or direct incorporation into melt-slurry systems for compound fertilizer production.

    Final product types

    • Granular NPK fertilizers
    • Bulk blended fertilizers
    • Water-soluble fertilizers for drip or foliar application

    2. Fire Extinguishing Powder Manufacturing

    The phosphate compound provides flame-retardant properties essential for Class A, B, and C fire-extinguishing powders. Downstream formulators select the material for its ability to promote charring and to interfere with combustion chemistry. Quality and particle size distributions are managed according to safety standards, and the product enters blending and milling stages to produce a free-flowing extinguishing agent for safety equipment manufacturers worldwide.

    Industry compliance standards

    • UL 299 Standard for Dry Chemical Fire Extinguishers
    • EN 615:2009 Fire Fighting Equipment – Portable Fire Extinguishers
    • NFPA 10 Standard for Portable Fire Extinguishers
    • ISO 7165:2017 Fire Fighting – Portable Extinguishers

    Typical usage ratio

    • Blending ratio typically 60–80% in the final fire extinguishing powder, with adjustments based on required class of fire protection and flow properties.

    Downstream process integration

    • Integrated into dry blending and fine milling steps; post-blend dust control and anti-caking agents added before packaging.

    Final product types

    • ABC dry chemical powder (monoammonium/diammonium base)
    • Portable dry powder fire extinguishers
    • Bulk powder systems for industrial fire suppression

    3. Metal Surface Treatment (Phosphating)

    Surface treatment providers apply this phosphate during metal phosphating baths to form insoluble iron phosphate layers on steel components. This application enhances paint adhesion, reduces corrosion risk, and supports downstream powder coating or wet paint finishing. The chemical enters directly into the phosphating bath, and its concentration is critical for meeting technical standards of automotive, appliance, and machinery sectors. Continuous process control and bath monitoring ensure compliance with client and industry specifications.

    Industry compliance standards

    • ISO 9717:2017 Iron Phosphate Coatings
    • ASTM B117 Salt Spray Test (for performance validation)
    • Automotive manufacturer OEM paint/pre-treatment specifications (e.g., Ford WSS-M2P177-A1)
    • RoHS Directive for restricted substances

    Typical usage ratio

    • Typical bath concentration ranges from 10 g/L to 30 g/L, optimized by pilot line trials and metal substrate requirements.

    Downstream process integration

    • Dosed into phosphating tanks during bath makeup or replenishment; monitored continuously in-line for consistent film deposition.

    Final product types

    • Phosphated sheet steel for automotive use
    • Steel appliance bodies with phosphate pretreatment
    • Machinery components with enhanced anti-corrosion finish

    4. Food and Beverage Processing (Leavening Acidulant)

    This phosphate is permitted as an acidity regulator and leavening agent in specific food manufacturing, notably baked goods and dry beverage powders. Food processors control addition rates tightly, guided by national food additive regulations and individual product formulation requirements. Ingredient dissolves into upstream batch operations either alone or with other acidulants, ensuring quality control for finished food safety and regulatory audits.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius E341(ii) – Food Grade Phosphates
    • FDA 21 CFR 182.1073 (as a GRAS substance)
    • EU Regulation (EC) No 1333/2008 on Food Additives
    • GB 2760-2014 (China National Food Safety Standard – Food Additive Use)

    Typical usage ratio

    • Usually 0.5%–2.5% by total formulation weight, controlled to avoid excessive phosphate in finished foods and to maintain desired pH for product stability.

    Downstream process integration

    • Blended into dry ingredient pre-mixes or dosed into wet batter phases; subjected to blending QC and solution testing for acidulant performance.

    Final product types

    • Baking powders for cakes, biscuits, and bread
    • Dry beverage pre-mixes and powdered soft drink bases
    • Emergency ration baked products

    5. Detergent and Cleaning Formulations

    Industrial cleaning and detergent manufacturers utilize the phosphate for its sequestering and pH buffering actions. It supports scale removal in institutional/industrial detergents and assists process equipment cleaning in food processing, dairies, and textile dyeing. The compound is added at specified points during blending and granulation, with in-process monitoring to ensure compatibility with surfactants and anti-redeposition agents for the target cleaning application.

    Industry compliance standards

    • EU Detergents Regulation (EC) No 648/2004
    • US EPA Safer Choice Standard (for industrial cleaning)
    • EN 1276: Chemical Disinfectants and Antiseptics
    • ISO 9001:2015 for QC management of chemical blends

    Typical usage ratio

    • Final formulation content between 1% and 10%, depending on wash application, water hardness, and national phosphate limits.

    Downstream process integration

    • Blended during powder or liquid detergent compounding; post-mix QC for phosphate content and solution clarity prior to final granulation or bottling.

    Final product types

    • Institutional heavy-duty laundry detergents
    • Dishwasher machine powders and tablets
    • Industrial surface and equipment cleaners

    6. Ceramic and Porcelain Additives

    Advanced ceramics manufacturers incorporate this phosphate as a deflocculant and binder in the preparation of ceramic slips and glazes. Its chemical functionality assists with dispersion of clay particles, aids in reducing viscosity, and improves strength of green bodies during shaping and firing. The compound is introduced during slurry preparation, with constant adjustment based on raw material batch characteristics and required end-product specifications.

    Industry compliance standards

    • ISO 13006:2018 – Ceramic Tiles Definitions and Specifications
    • ASTM C485 for Porcelain and Ceramic Tile Standards
    • QC protocols based on finished tile water absorption and bonding strength limits
    • REACH Registration for non-food use chemicals

    Typical usage ratio

    • Generally 0.2%–1.5% by weight in slip or glaze formulations, fine-tuned through viscosity checks and molding trials.

    Downstream process integration

    • Dosed during slip or glaze mixing; subsequent in-line monitoring to assess flow properties, particle dispersion, and drying behaviors.

    Final product types

    • Porcelain floor tiles and wall tiles
    • Glazed ceramic sanitary ware
    • Decorative ceramic tableware
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    Certification & Compliance
    More Introduction

    Ammonium Phosphate Dibasic: Reliable Supply from a Dedicated Manufacturer

    What Sets Our Ammonium Phosphate Dibasic Apart

    In the field of phosphate salts, Ammonium Phosphate Dibasic—also known as Di-Ammonium Hydrogen Phosphate or DAP with the chemical formula (NH4)2HPO4—stands out for its well-known consistency and solubility. As producers with years of hands-on experience, we understand that performance begins with purity, particle control, and well-established process management at the factory level.

    Our product offers a consistent white crystalline form. We adhere to strict internal standards and often exceed industry norms for purity, usually wading well above 99% on a dry basis in every production run. Customers from sectors including fertilizers, fire retardants, food processing, and water treatment depend on a batch that meets strict solubility and composition targets—not rough averages—and our tight process controls ensure the ammonium and phosphate ratio is always on point. We manage particle sizing to fit the machinery and downstream integration needs of our partners, avoiding the caking and dust issues that crop up too often with substandard materials.

    The Real Value: Performance Across Industries

    As a base ingredient for phosphate fertilizers, Ammonium Phosphate Dibasic is often the first choice for N and P supplementation on farms. On the shop floor, precision in pH buffering and free-flowing granules have allowed our clients in specialty nutrient blends to maximize absorption rates and limit the common problem of runoff. Plants respond quickly to the nutrient profile, and our product’s ease of dissolution means it works well in both soil and hydroponic blends. The crystal purity translates directly into efficiency for growers, reducing application rates and minimizing excess mineral buildup.

    In fire retardants, consistency is more than a marketing point—it’s a safety issue. If a grade contains excess moisture or off-ratio composition, spraying is uneven or unreliable. With our vertical integration and close oversight from raw material selection to shipment, we back up every load with transparency. Customers in fire prevention can count on each bag delivering the phosphate buffering needed for foams, coatings, and forest spray operations without clumping or anomalous chemical residues.

    Direct industrial applications include use as a buffer in fermentation processes, a component in ceramics glazing, and even as a high-purity reagent in laboratory testing. Our Ammonium Phosphate Dibasic dissolves cleanly, supporting both high-throughput and small-batch operations. This directly lowers downtime from clogged lines, poorly mixed tanks, or unresolved residues, all preventable issues when working with a thoroughly filtered and dried product.

    Food processors use this salt in bakery production, beverage formulations, and as a yeast nutrient. We establish parallel lines and maintain records to support compliance with relevant food grade standards. Our own approach to traceability keeps things simple for clients during inspections and certification reviews—the documentation you receive actually reflects the process you see on the floor.

    Proven Reliability: From Feedstock Selection to Final Packaging

    Many customers compare Ammonium Phosphate Dibasic with Monobasic Ammonium Phosphate or diammonium variants from bulk blenders or importers. Consistency distinguishes the real manufacturer. We source our base materials from vendors with transparent supply chains and bring in routine batch analysis at every step. At our site, everything from solution ion exchange to pH targeting and washing is continually logged and monitored.

    You rarely hear about a failed batch from us because we adjust process controls in real-time during synthesis. Over-drying, batch cross-contamination, or improper neutralization show up fast in our daily QC results. Our procedures exclude off-spec lots from shipment, absorbing that cost rather than shifting it to our partners who would otherwise face re-work, downtime, or field complaints.

    Bulk packaging gets as much attention as in-plant chemistry. We stake our supply relationships on solid packaging: 25 kg polyethylene bags with inside liners, or custom-sized super sacks. Moisture intrusion creates clumping and lowers shelf stability, so we double seal our bags and store them in humidity-stabilized environments prior to loading. By the time the material leaves our floor, you’re guaranteed batch numbers that track every handling stage.

    Why Ammonium Phosphate Dibasic Holds Its Ground

    Competitors sometimes offer blends that appear similar—at least on paper. Chemically, Monobasic Ammonium Phosphate carries a different ammonium-to-phosphate balance. That matters a lot in real-world use. In hydroponics, DAP’s higher pH buffering keeps your system stable where monobasic salts would push things toward acidity. Fertilizer mixing lines run cleaner, and agricultural uptake profiles for nitrogen and phosphorus run steadier with DAP in the blend.

    Compared with bulk-manufactured products from outside our region, we keep the process lean and the product fresh—cutting down on aging that can sap the crystalline structure or introduce absorbent moisture. Some offshore suppliers skimp on drying steps, or repack bulk lots several times en route to local distribution warehouses. That introduces risk, both to the physical integrity of the product and to your end application. Our on-site quality team has access to continuous batch testing results, and that direct oversight in the same facility is a requirement, not an afterthought.

    Our customers need clarity on the chemical fingerprint of what they receive. We issue direct-to-batch COAs, and you can reach our technical experts—not a call center—for explanation or troubleshooting. No layers of brokers dilute chain-of-custody or add uncertainties over what’s been delivered.

    Traceability and Commitment to Product Integrity

    Manufacturing ammonium phosphate salts isn’t just about putting chemicals together. Every shipment carries your brand identity further downstream, from agricultural supply yards to food-grade facilities. We respect that obligation in several ways. We don’t switch grades or particle sizes between orders, nor swap out production methods without advance consultation. Any change—whether it’s a raw material source or a new filling machine—is run through a new validation, and we share those results.

    Some customers assume Ammonium Phosphate Dibasic from one manufacturer works the same as from another. Over the past decade, we’ve managed recalls and rectified complaints from buyers who previously tried switching to lower priced, third-party packaged DAP. The biggest culprits are unexpected contamination (like trace metals from unfiltered water or legacy production lines), batch-to-batch variance in pH buffering, and inconsistent moisture.

    We install chemical feed quality detection and keep an unbroken chain of custody through the entire production, storage, and shipment organization. Damage or exposure is rare, but if an anomaly does occur, we act immediately, isolating the suspect lot and reaching out to all impacted partners—we don’t wait for a complaint before moving. This approach reduces your operational risk, keeps your application or production schedule on track, and avoids costly rework.

    Compliance and Safety: Our Hands-on Approach

    Every country enforces broad requirements on production, storage, and shipping of ammonium and phosphate salts, including DAP. We take regulatory compliance as seriously as purity. Our facility operates under monitored environmental and worker safety controls, conducting regular air, dust, and effluent checks as part of plant routines. Our file of updated certifications is available for review, supported with up-to-date audit summaries.

    Fire rating is another factor few customers consider until there is a problem. Our process keeps the nitrogen-to-phosphorus load strictly within established safe limits, lowering volatility and supporting safer handling throughout the supply chain. Local fire authorities review our protocols, and we regularly test emergency containment and ventilation systems within production and storage areas. Trucks and drivers receive guidance packs including detailed MSDS and rapid-response phone access direct to factory EHS staff.

    Some manufacturers cut corners on labeling or fail to supply current SDS documentation, creating regulatory headaches down the chain. Our approach is simple: labeling every pallet, every bag, and providing batch-specific documents, updated at shipment. This cuts down confusion for customs inspection, field handlers, and technical staff at your end—and establishes a record for regulatory or incident follow-up.

    Sustainability: Real Steps, Not Greenwashing

    There’s a lot of talk about sustainability and responsible sourcing in the chemical industry. In practice, responsible ammonium phosphate manufacturing means managing chemical flows nearly down to the gram, and sharply limiting emissions. We invested in equipment upgrades to recover ammonia from off-gas, and we reuse process rinse water after filtration in earlier stages. We audit both upstream vendors and outbound logistics for compliance with local and international standards, placing real requirements in contracts and auditing bi-annually.

    The phosphoric acid we use comes from sources with transparent reporting on mining practices and environmental impact, and we verify that documentation on a quarterly basis. Waste minimization isn’t just a policy document—it’s tracked on our daily reporting dashboards and reviewed as part of every ISO audit. Where feasible, we run take-back programs for unused product or packaging, and provide advice for local recycling outlets.

    We know some customers get skeptical about green claims and look for substance over words. Our annual environmental reports break down our progress: liters of water saved, percentage of waste routed to recycling or reuse, and kilograms of reduced ammonia loss. These figures don’t just decorate marketing—they are shared with our industrial partners, who factor them into their own reporting.

    Technical Support Backed by Real-World Experience

    Supplying Ammonium Phosphate Dibasic isn’t a warehouse operation—it’s an ongoing partnership built from addressing field issues, user training, and application troubleshooting. Our technical team receives regular hands-on operating experience in the plant and visits agricultural, fire-retardant, and food-processing sites using our product. If a customer reports a caking problem due to weather or receives a batch with unexpected particle segregation, we don’t hand off a generic answer. Direct diagnosis, sample analysis, and even process audits are available, sharing both our data and recommended corrections.

    In new formulations where ingredient compatibility matters, we work alongside R&D departments providing comparative performance data and collaborating through pilot tests using shipped samples. We participate in field trials with agricultural extension teams to optimize dosages for local soil types, reducing waste and cutting back excess phosphate runoff. If water treaters run into unusual mineral load or require a special granule size, we develop custom blending plans in consultation rather than offering a limited spec sheet.

    Our customer service and troubleshooting capabilities build the confidence to run long campaigns, reduce downtime, and tackle problems before they spiral into major incidents. Supporting new market entrants with application training or helping older partners adopt best practices in handling and storage reflects our position as a producer—not simply another stop in the distribution network.

    How Our Approach Benefits Your Operation

    Direct supply from the factory means faster shipping windows, clear documentation, and no confusion about specification, origin, or compliance. Our logistics model prioritizes regular communication, scheduled dispatch windows, and real-time updates for our customers. Any disruption—be it a major weather event or an equipment repair—is shared immediately with all parties receiving material that week.

    We manage both regular contract supply and urgent "breakdown" orders where a customer's line is at risk of halt. Holding buffer stocks in multiple locations allows us to fulfill unscheduled draws without impacting broader supply chain reliability. Our teams coordinate both with internal QA/QC and external carriers to avoid bottlenecks, keep advanced notice of port or inspection delays, and ensure correct documentation pairs with the correct shipment.

    Looking down the line, we know that long-term partners value not only price competitiveness but also commitment to ongoing product improvements. We run annual customer feedback reviews, acting on recurring challenges like clumping, dust, or solubility reporting, and install regular upgrades to production based on the operational feedback we receive. That cycle of feedback and adjustment, built into our planning and QMS, distinguishes us from those who only respond when a problem becomes too big to ignore.

    Differences with Related Products and Choosing the Right Fit

    Choosing between Ammonium Phosphate Dibasic and Monobasic Ammonium Phosphate, or other nitrogen-phosphorus sources, isn’t academic. DAP's higher pH balance suits it for broad-acre farming, hydroponics, and blended fertilizer where a steady, non-acidic release is required. Monobasic variants push the pH downward, sometimes triggering compatibility or performance issues in sensitive crops or fermentation systems.

    Some prefabricated fertilizers and fire retardants cut DAP with lower-cost fillers or alternate nutrients. This can yield unpredictable results—clumping, incomplete absorption, or mineral imbalances in the soil. Our customers, especially those running precision agriculture or critical infrastructure operations, stay with pure, verified DAP because costs lost to crop loss, machinery fouling, or product recall rapidly outstrip any upfront savings.

    Large-scale food processing relies on low-odor, tightly screened dibasic ammonium phosphate so as not to interfere with flavor profiles, fermentation rates, or shelf-life. The odor, granule uniformity, and moisture content directly influence both product yield and consumer acceptance—details too easy to neglect in batch blending or third-party repackaging environments.

    Each application draws unique lines: baking relies on fine, food-grade DAP with established yeast nutrition properties; fire retardant relies on granular, predictable composition; agri-nutrient companies look for cost-effective, balanced N:P ratio supporting local soils over a range of weather and mechanical application environments. Our years of working alongside clients in each sector have built up not just a technical specification, but a hands-on approach to matching the right grade and packaging to the actual problem being solved.

    Continuous Improvement From the Factory Floor

    Formulating, refining, and producing Ammonium Phosphate Dibasic at high volume means staying responsive to changing requirements. As application technologies evolve, and as global regulations shift, we update our quality and logistics systems. We regularly upgrade our drying, milling, and packaging machinery based on in-field lessons and customer priorities—targeting specific improvements over theoretical or one-size-fits-all models.

    Research into new granulation agents, antistatic packaging, or cleaner ammonia recovery is ongoing. Our plant teams collaborate with local universities and industry partners, conducting test runs and third-party validation for new production cycles or raw material shifts. Feedback flows directly from these initiatives into future product batches, providing our customers a route for their own innovation and improvement.

    Direct employment of experienced plant staff, not just technicians with limited exposure, means that we spot trends and abnormalities quickly. It's not unusual for us to develop application notes or troubleshooting guides based on actual client scenarios, integrating lessons learned for the benefit of all our offtakers. All insights flow back into our operating standards—closed-loop improvement, designed to eliminate repeated faults and drive continual reliability.

    Standing By Our Product and Partners

    Wherever Ammonium Phosphate Dibasic is a linchpin ingredient—be it in world agriculture, modern building fire protection, or food production—our job as manufacturer means more than just moving boxes from factory to field. We back every shipment with the weight of our knowledge, demonstrated history of supply, and dedication to ongoing business relationships. When you choose us, you gain a partner with a real stake in your operational success—someone you can call in for advice, not just an anonymous vendor selling a formula.

    If you want to move beyond uncertainties and minimize risk in your ammonium phosphate sourcing, talk with us. Let’s solve field problems together and build a partnership around clean, accountable, and thoroughly validated Ammonium Phosphate Dibasic supply.