Soluble Ammonium Polyphosphate SAP
| HS Code | 599188 |
| Chemical Formula | Typically (NH4)n+2PnO3n+1 |
| Appearance | White powder or granular |
| Solubility | Highly soluble in water |
| Phosphorus Content | Relatively high phosphorus content |
| Nitrogen Content | Contains ammonium nitrogen |
| Ph In Solution | Near - neutral pH in solution |
| Thermal Stability | Good thermal stability |
| Fire Retardant Property | Effective fire - retardant |
| Viscosity | Low viscosity in solution |
| Particle Size Distribution | Controllable particle size distribution |
| Hygroscopicity | Low hygroscopicity |
As an accredited Soluble Ammonium Polyphosphate SAP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Wrap Soluble Ammonium Polyphosphate SAP in thick plastic woven bags with two layers inside and outside, tie the bag mouth tightly and then sew it shut; if using a porcelain jar, cover the jar with felt and apply mud to seal the outside, all to protect its quality and prevent it from absorbing moisture and agglomerating. |
| Storage | Soluble Ammonium Polyphosphate SAP should be stored in a dry warehouse, stacked in piles, with no more than ten packages per pile, to allow air to circulate. If it encounters the rainy season, lime can be placed in the warehouse to absorb moisture, so that the Soluble Ammonium Polyphosphate SAP can remain dry. |
| Shipping | When transporting Soluble Ammonium Polyphosphate SAP, whether it is transported by car or boat, it must be firmly positioned to prevent shaking and collision. If it is transported over a long distance, it is necessary to check the packaging frequently and repair it immediately if there is any damage to avoid the loss of Soluble Ammonium Polyphosphate SAP. |
Competitive Soluble Ammonium Polyphosphate SAP 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.
We will respond to you as soon as possible.
Tel: +8615380400285
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Historical Development
People in the past knew that phosphorus can strengthen seedlings, but most of what they got were single phosphorus products. Later, a wise man thought of the polymerization method and developed Soluble Ammonium Polyphosphate SAP. At first, it could only be made in the study for experimental purposes. After the development of chemical technology, it was possible to open a workshop for mass production and widely use it in the world.
Product Overview
Soluble Ammonium Polyphosphate SAP is pure in quality and white as frost. It melts in water without residue. It contains polyphosphate and ammonium. It is stable and long-lasting. It can not only fertilize the fields, but also has great use in other industries.
Physical & Chemical Properties
Soluble Ammonium Polyphosphate SAP is crystalline or fine powder with a very high melting point. It does not burn when thrown into fire, but dissolves immediately when put into water. Its aqueous solution is alkaline. If it is placed in iron for a long time, the wall of the iron will be slightly rusted.
Technical Specifications & Labeling
The formula of Soluble Ammonium Polyphosphate SAP includes purity (not less than 90%), solubility (≥80 g per 100 ml of water), pH value (8 - 10), etc. On the label, the full name Soluble Ammonium Polyphosphate SAP must be written, with various indicators, manufacturer's name, and warnings attached.
Preparation Method
To make Soluble Ammonium Polyphosphate SAP, diammonium phosphate is often placed in a crucible, heated with charcoal fire, and stirred to polymerize the molecules until it melts. After a certain period of time, it is cooled off from the fire to obtain Soluble Ammonium Polyphosphate SAP. Control of the temperature is the most critical.
Chemical Reactions & Modifications
Soluble Ammonium Polyphosphate SAP reacts with a strong alkaline solution, releasing ammonia gas to form phosphates; if it comes into contact with copper and iron oxides at high temperatures, it changes color and smokes to form complex salts.
Synonyms & Product Names
Soluble Ammonium Polyphosphate SAP is commonly used in the industry. Although it is also commonly known as "ammonium polyphosphate", it must be called the full name of Soluble Ammonium Polyphosphate SAP in formal documents and transactions to show solemnity.
Safety & Operational Standards
When using Soluble Ammonium Polyphosphate SAP, you need to wear long-sleeved clothes and goggles to prevent the dust from entering your nose and eyes. After the operation, you must wash your hands and rinse your mouth. If you feel unwell, seek medical attention immediately.
Application Area
In addition to being applied to the fields to help crops, Soluble Ammonium Polyphosphate SAP is also used for water treatment in dyeing factories and fire prevention of wood. In industry, it can be used as an auxiliary material for certain pharmaceuticals and has a wide range of uses.
Research & Development
Bachelor craftsmen are studying new uses for Soluble Ammonium Polyphosphate SAP, or finding its place in batteries and coatings, and at the same time changing its production method to make it more energy-efficient and waste-free, making it more appropriate.
Toxicity Research
Soluble Ammonium Polyphosphate SAP is not very toxic, but if its dust enters the lungs for a long time, it may cause breathing problems, so operators must strictly follow the protective rules.
Future Prospects
In the future, the power of Soluble Ammonium Polyphosphate SAP may become more prominent, its application may be wider, and its preparation technology will also be more refined, and it will be widely used in the world.
Where to Buy Soluble Ammonium Polyphosphate SAP in China?
As a trusted Soluble Ammonium Polyphosphate SAP 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 Soluble Ammonium Polyphosphate SAP 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 the difference between the raw materials used to prepare Soluble Ammonium Polyphosphate SAP and fertilizer grade?
This product is mostly made of industrial grade phosphoric acid and ammonia. It does not need to be as strictly controlled as fertilizer grade heavy metals, but the purity still needs to reach more than 98%. Put the phosphoric acid in a steel reactor, heat it to 190 degrees, pass industrial ammonia, and stir it with an iron paddle while passing it. When the pH value reaches 6.8, raise the temperature to 230 degrees to polymerize for two hours. Its reactor can withstand higher pressure, so the molecular chain is longer, and the degree of polymerization reaches 8 to 10, which is higher than the fertilizer grade. After cooling, grind it into powder, which can be soluble in water and organic solvents such as ethylene glycol. This is the main difference from the fertilizer grade.
What are the characteristics of Soluble Ammonium Polyphosphate SAP's industrial use?
In water treatment, this product can chelate iron and manganese ions to prevent them from forming rust in pipes. It can be used for boiler water treatment to extend the sewage discharge cycle by three times. As a flame retardant in coatings, only 10% of the addition amount can make the coating reach the flame retardant level. When exposed to fire, an expanding carbon layer is generated to block oxygen and insulate heat. In metal surface treatment, it can be used as a phosphating agent to form a protective film, enhance the adhesion of the coating, and double the life of the coating. As a sizing agent in the papermaking industry, it can increase the folding resistance of paper by 40% and is not easy to get wet. It is used like a generalist and can show its strengths in various industries.
What are the characteristics of Soluble Ammonium Polyphosphate SAP's solubility performance?
This product is easily soluble in water. When the water temperature is 20 degrees, the solubility reaches 72 grams per 100 milliliters, which is 30% higher than ordinary ammonium phosphate. The aqueous solution is weakly alkaline, with a pH value of about 7.8. It is still stable after being placed for a week without precipitation. The solubility in ethanol is about 5%, and it can be made into an alcohol-water solution for special industrial scenarios. Its dissolution rate increases with the increase of temperature. It can be completely dissolved in three minutes at 80 degrees, and it absorbs heat during dissolution, which reduces the solution temperature by about 5 degrees. This property makes it particularly suitable for processes that require low-temperature dissolution, such as the preparation of certain pharmaceutical preparations.
How to prevent Soluble Ammonium Polyphosphate SAP from caking during storage?
Although this product has weaker hygroscopicity than fertilizer grade, it still needs to be sealed during storage. It can be stored in an iron barrel lined with a plastic bag, and the barrel lid should be tightened with a rubber gasket and then sealed with vaseline. The warehouse should maintain a relative humidity below 60, a temperature not exceeding 30 degrees, and the ground should be paved with asphalt to prevent moisture. When stacking, leave a 30-centimeter gap for ventilation, and turn the bottom cargo every half a month. If stored for a long time, silica gel desiccant can be placed in the package, 50 grams for every 50 kilograms, which can effectively delay caking. Once caking, it can be placed in a wooden grinding trough and lightly ground, and it can still be restored to powder without affecting use.
What is the difference between Soluble Ammonium Polyphosphate SAP and fertilizer grade in terms of testing indicators?
The degree of polymerization of industrial-grade Soluble Ammonium Polyphosphate SAP needs to be measured, which is required to be above 6, while fertilizer grade does not have this requirement. The pH value range for industrial grade is wider, between 7.5 and 8.5, while the pH value for fertilizer grade must be strictly controlled between 6.0 and 7.0. The water-insoluble content requirement for industrial grade is less than 0.5%, while that for fertilizer grade can be relaxed to 1%. In terms of heavy metal indicators, the lead content for industrial grade is allowed to be up to 5 parts per million, while that for fertilizer grade must be less than 2 parts per million. During testing, the solubility in organic solvents must also be measured for industrial grade, while the water solubility for fertilizer grade only needs to be measured.
