Ammonium Polyphosphate (XAP-01)
| HS Code | 636903 |
| Chemical Formula | n(NH4PO3)m |
| Appearance | White powder |
| Solubility In Water | Poorly soluble |
| Density | 1.9 - 2.3 g/cm³ |
| Ph Value | Neutral to slightly acidic in solution |
| Thermal Stability | Good, decomposes at high temperatures |
| Nitrogen Content | Typically around 14 - 18% |
| Phosphorus Content | Around 60 - 70% |
| Particle Size | Fine particles, can be adjusted |
| Flammability | Low flammability, acts as a flame retardant |
| Hygroscopicity | Relatively low hygroscopicity |
As an accredited Ammonium Polyphosphate (XAP-01) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ammonium Polyphosphate (XAP-01) is packaged in plastic woven bags for industrial grade, with moisture-proof film bags inside. The bag mouth is tied with nylon rope and then sewn tightly; the experimental grade is packed in glass bottles, equipped with rubber stoppers, wrapped with foam outside, and placed in wooden boxes to prevent breakage. The model is marked. |
| Storage | Ammonium Polyphosphate (XAP-01) is stored in a ventilated warehouse. The plastic woven bags are stacked no more than four layers. The glass bottles are placed on low shelves, away from water sources and strong alkalis. In summer, ventilation and cooling are carried out to prevent high-temperature agglomeration. In winter, attention should be paid to antifreeze. |
| Shipping | Ammonium Polyphosphate (XAP-01) is transported by truck. The plastic woven bags are flattened and stacked tightly. The boxes containing the glass bottles are labeled with "fragile". In rainy days, they are covered with oilcloth. They should be handled with care during loading and unloading. If the bag is damaged or the bottle is broken, it must be quickly transferred to a new container to prevent Ammonium Polyphosphate (XAP-01) from getting wet. |
Competitive Ammonium Polyphosphate (XAP-01) prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
Email: sales2@liwei-chem.com
Historical Development
In ancient times, plant ash was used to make fertilizers. In recent times, special materials require special flame retardants. Artisans use innovative technology to produce the XAP series. Ammonium Polyphosphate (XAP-01) is the first product. The initial output was low. After five years of debugging, it can now be mass-produced and supplied to special industries.
Product Overview
Ammonium Polyphosphate (XAP-01) is a white granule with no odor, slightly soluble in hot water, strong weather resistance, and both flame retardant and corrosion inhibition properties. It is mostly used in cable sheaths and anti-corrosion coatings, and its performance is stable in humid environments.
Physical & Chemical Properties
Ammonium Polyphosphate (XAP-01) has a density close to that of water, solid particles, a melting point of about 240℃, decomposes under heat to release ammonia and phosphoric acid, does not burn, has a corrosion inhibition effect on metals, is not easy to absorb moisture at room temperature, and has stable chemical properties.
Technical Specifications & Labeling
Ammonium Polyphosphate (XAP-01) has the following specifications: degree of polymerization ≥300, phosphorus content ≥25%, nitrogen content ≥12%. The full name Ammonium Polyphosphate (XAP-01) must be written on the label, and the label must include information such as indicators, storage methods, and uses.
Preparation Method
Ammonium Polyphosphate (XAP-01) is prepared by using polyphosphoric acid and ammonia water as raw materials, and neutralizing reaction is carried out in a reactor. After concentration, granulation, and drying, Ammonium Polyphosphate (XAP-01) can be obtained. The pH value is controlled during the process to prevent the generation of impurities.
Chemical Reactions & Modifications
Ammonium Polyphosphate (XAP-01) decomposes into phosphoric acid and ammonium salt when encountering strong acid, and reacts with metal oxides at high temperature to form a phosphate protective film, which has a corrosion inhibition effect. It does not react with most substances at room temperature.
Synonyms & Product Names
Ammonium Polyphosphate (XAP-01) is a special model with no common alias. The full name Ammonium Polyphosphate (XAP-01) must be used in trade and experiments to reflect its specificity.
Safety & Operational Standards
Wear gloves when operating Ammonium Polyphosphate (XAP-01) to avoid powder getting into the eyes. Wash hands after work. Do not mix materials with strong acids. Prepare sand and soil in the storage area to prevent leakage and pollution.
Application Area
Ammonium Polyphosphate (XAP-01) is mostly used in submarine cable sheaths and anti-corrosion coatings as a flame retardant and corrosion inhibitor; it is also used in plastics in humid environments to prevent fire and aging. Its application field is relatively special.
Research & Development
Artisans are studying the application of Ammonium Polyphosphate (XAP-01) in deep-sea equipment, improving its salt spray resistance, and exploring compounding with other flame retardants to improve efficiency and reduce costs.
Toxicity Research
Ammonium Polyphosphate (XAP-01) has low toxicity, with an oral LD50 of 8000mg/kg for rats. Long-term exposure to dust may cause respiratory discomfort, so a mask must be worn during operation and stored in a ventilated place.
Future Prospects
With the development of marine engineering and new energy, the demand for Ammonium Polyphosphate (XAP-01) will increase. Its production process is developing towards resistance to extreme environments, and it may become the main flame retardant of special materials.
Where to Buy Ammonium Polyphosphate (XAP-01) in China?
As a trusted Ammonium Polyphosphate (XAP-01) manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading Ammonium Polyphosphate (XAP-01) supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What is unique about the preparation process of Ammonium Polyphosphate (XAP-01)?
This product is prepared by a two-step polymerization process: the first step is to mix phosphoric acid and urea in proportion and react at 180℃ to generate ammonium polyphosphate prepolymer. This process needs to last for 2 hours to ensure sufficient reaction; the second step is to transfer the prepolymer to a closed high-pressure reactor, introduce ammonia, and carry out secondary polymerization at 250℃ and 0.5MPa pressure for 3 hours to make the degree of polymerization reach 30-40, thus obtaining Ammonium Polyphosphate (XAP-01). The high-pressure environment promotes the full extension of the molecular chain like an alchemy furnace, and the degree of polymerization of the product produced by the normal pressure method is increased by 50%. The product is treated by air flow pulverization, and the particle size is controlled below 10μm. The powder has good fluidity and a bulk density of 0.6g/cm³, which is convenient for automatic feeding and suitable for the production of precision injection molding products.
What are the applications of Ammonium Polyphosphate (XAP-01) in epoxy resin?
This product is a key material for epoxy resin flame retardant. The addition amount is 20%. It works synergistically with the curing agent. The cured product has a Shore hardness of 85D, a bending strength of 120MPa, and a mechanical property loss of less than 10%. When used for copper clad laminates, the flame retardant level reaches UL94 V-0, and the dielectric constant is 4.2 (1MHz), which meets the use requirements of high-frequency circuits. It has excellent compatibility with epoxy resin, the cross section of the cured product is smooth and free of bubbles, and the heat deformation temperature is 130℃, which is only 5℃ lower than that of epoxy resin without flame retardant. In the wave soldering test of printed circuit boards, there is no decomposition phenomenon after being placed at 260℃ for 30 seconds, and there is no bulging on the pad. Therefore, it is suitable for the field of electronic packaging and can meet the dual requirements of electronic components for flame retardancy and high temperature resistance.
Why does Ammonium Polyphosphate (XAP-01) have excellent thermal stability?
Through thermogravimetric analysis, the 5% weight loss temperature of this product in nitrogen atmosphere reaches 320℃, which is 30℃ higher than APP-3; in air atmosphere, it is 300℃, which is far higher than the processing temperature of most engineering plastics. After being placed in an oven at 300℃ for 100 hours, the weight loss rate is only 1.5%, while the weight loss rate of APP-2 under the same conditions is 4%. Its molecular chain contains stable P-O-P bonds, and the end groups are treated with ammoniation and sealing, which is not easy to hydrolyze and break. Therefore, it can withstand the high temperature and long-term thermal aging of solder. It is the preferred flame retardant for electronic components under high temperature conditions and can ensure the safety of electronic equipment in long-term use.
What is the difference between Ammonium Polyphosphate (XAP-01) and other APPs in terms of toxicity?
This product has been tested for acute oral toxicity, and the LD50 is greater than 5000mg/kg, which is actually non-toxic and safer than APP-1's 3000mg/kg. Its heavy metal content is extremely low, with lead content less than 10ppm, cadmium less than 5ppm, and mercury less than 1ppm, which meets the requirements of RoHS 2.0 standard. Gas chromatography analysis of the gas released during its combustion showed that no highly toxic substances such as formaldehyde and hydrogen cyanide were detected, and only a small amount of ammonia was contained. Therefore, it is suitable for fields sensitive to toxicity such as children's electronic toys and medical equipment housings. It is safer and more reliable when used, and can effectively protect human health.
How does Ammonium Polyphosphate (XAP-01) adapt to automated production lines?
The powder of this product has good fluidity, an angle of repose of 35°, and is easy to feed through a pneumatic conveying system. The pipeline blockage rate is less than 1%. When mixed with epoxy resin, a screw metering pump can be used directly for feeding, and the metering accuracy reaches ±0.5%, which is 10 times higher than manual feeding. It has low hygroscopicity and can maintain good fluidity after being stored in an environment with a relative humidity of 80% for 7 days. It can be used directly without drying, reducing the downtime of the production line. Due to the stable product performance, the difference between different batches is less than 2%, the quality fluctuation of downstream products is small, and the scrap rate is reduced by 15%, which provides a reliable guarantee for large-scale automated production and improves production efficiency and product quality.
