Ammonium Polyphosphate for Intumescent Coating
| HS Code | 173922 |
| Appearance | White powder |
| Chemical Formula | (NH4)n+2PnO3n+1 |
| Solubility | Insoluble in water and organic solvents |
| Ph Value 1 Aqueous Solution | 6 - 8 |
| Average Degree Of Polymerization N | Typically 10 - 200 |
| Thermal Stability | Good, decomposes at relatively high temperatures |
| Nitrogen Content | Around 12 - 14% |
| Phosphorus Content | Approximately 30 - 32% |
| Particle Size | Fine, usually in the range of a few micrometers |
| Water Absorption Rate | Low |
As an accredited Ammonium Polyphosphate for Intumescent Coating factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 50 - kg bags of Ammonium Polyphosphate for intumescent coating packaging. |
| Storage | Ammonium polyphosphate for intumescent coating should be stored in a cool, dry place. Keep it away from heat sources and direct sunlight to prevent degradation. Store in a well - sealed container to avoid moisture absorption, as exposure to moisture can affect its performance in the intumescent coating formulation. |
| Shipping | Ammonium Polyphosphate for Intumescent Coating is shipped in sealed, moisture - resistant containers. It's carefully handled to prevent damage. Shipment may be via truck, rail, or sea, ensuring compliance with chemical transportation regulations. |
Competitive Ammonium Polyphosphate for Intumescent Coating prices that fit your budget—flexible terms and customized quotes for every order.
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Historical Development
Since ancient times, fire has been a problem for the people. The ancients had lime coating on the wall to control flames. In modern times, chemical technology has gradually flourished, and more benefits have been seen in fireproof materials. By the middle of the twentieth century, phosphorus-based flame retardants began to show their use. At that time, scientists painstakingly studied and learned that ammonium polyphosphate can expand in case of fire, forming a carbon layer and protecting the base layer. Therefore, ammonium polyphosphate has gradually become an important material for intumescent coatings. At the beginning of research and development, most of the first-phase products were applied, and then the production process was refined. The second-phase products have high polymerization degree, water resistance and thermal stability, which are beyond the former. From the United States, Europe and the world, Chinese and foreign projects have benefited from it. Today's chemical technology is improving day by day, ammonium polyphosphate compound is fused with a variety of formulas, making fireworks difficult to invade, and its benefits are obvious.
Product Overview
This product is called ammonium phosphate, English name Ammonium Polyphosphate, specially used in the preparation of intumescent coatings. Its form is white powder, non-toxic and tasteless, insoluble in water, and has excellent thermal stability. In case of high temperature fire, it can decompose and release inorganic acids, promote expansion reaction, form a dense carbon layer, effectively isolate flames and substrates, and protect the structure from damage. This product has both flame retardant and smoke suppression effects. It is a green and environmentally friendly choice and is widely used in fire protection coatings in buildings, iron structures, ships and other fields. Its participation in the formula can improve the adhesion and weather resistance of the coating, protect the health of the substrate for a long time, and is easy to apply and has excellent performance. It is a good agent for intumescent fire protection.
Physical & Chemical Properties
This ammonium phosphate double salt, white powder, is extremely fine in quality. Odorless and tasteless, with a density of about one to one and a half, high melting point, decomposes at about 300 degrees Celsius, and has excellent fire resistance. It dissolves in water and self-dissolves to form phosphate and ammonia in case of high humidity. Water solubility decreases with the degree of polymerization. Those with high degree of polymerization are almost insoluble, slightly soluble in alcohol. Release ammonia and polyphosphoric acid under strong heat, and can be hydrolyzed in case of acid or alkali. Mild chemical property, not easy to spontaneously ignite, and difficult to ignite in case of open flame. It is used as the main fire retardant in intumescent coatings. It can be carbonized to form a film and expands at high temperature to isolate the fire source. It is used in combination with carbon sources and foaming agents, and its performance is
Technical Specifications & Labeling
The name of this product is ammonium polyphosphate. It is used in intumescent coatings and is in the form of white powder. The particle size is fine, the sieving rate is more than 90%, and the bulk density is about 0.7 grams per cubic centimeter. The volatile matter is less than 1%, and the water content is not more than 0.5%. The phosphorus content is not less than 31%, the nitrogen content is not less than 14%, and the degree of polymerization is between 1,000 and 1,500. In case of fire, it can release non-toxic gases and decompose and release phosphoric acid at high temperature to form a porous flame retardant carbon layer to prevent the spread of fire. Low water solubility, pH value of 6 to 8, excellent stability. Widely suitable for solvent-based and water-based coatings, and can also be used for fire protection coatings in construction, ships, steel structures and other fields. Selected raw materials are refined, tightly packed, away from moisture, and stored at room temperature to ensure quality for a long time.
Preparation Method
Take ammonia and phosphoric acid, mix slowly according to a fixed ratio, heat to a suitable temperature, and control the reaction in a constant temperature system. Gradually heat the liquid phase reaction to form ammonium phosphate. Then it heats up and polycondenses at high temperature, which lasts for several hours. Ammonium polyphosphate is much more. In the meantime, a catalyst such as sulfuric acid or nitric acid should be added in small amounts to catalyze the polycondensation reaction, so that a long chain structure can be formed. During the polycondensation, the phosphorus-oxygen bond is gradually connected, and the chain length is increased. The finished product is white particles or powder. After cooling, washing, and drying, the pure product is separated and used for intumescent fire retardant coatings. It decomposes at a high temperature of the flame to release non-flammable gases and forms a porous phosphate The beauty of preparation lies in temperature control and catalyst fine-tuning, resulting in moderate degree of polymerization and excellent thermal stability, making it a good material for fire protection.
Chemical Reactions & Modifications
Ammonium phosphate polymer has stable properties and is widely used in intumescent fire retardant coatings. When it is exposed to fire, phosphorus is released and decomposed to form ammonium polyphosphate and ammonia. At high temperature, ammonium polyphosphate reacts with carbon and gas sources to form a dense carbon layer to block fire. However, the water solubility of the ammonium phosphate polymer body is slightly higher, and it is easy to seep with water, so it needs to be modified. Nowadays, people mostly use surface coating method or organic silicon, epoxy or nano-materials to wrap it, which not only reduces water solubility but also increases compatibility, so that it works better with resins and additives. And try to graft copolymerization, intercalation and other methods to introduce new groups to give it hydrophobic, anti-migration and other functions, so that it can be in the fire protection system, which can not only produce thick carbon quickly, but also delay pyrolysis, ensuring the durability and safety of the coating.
Synonyms & Product Names
Ammonium polyphosphate, also known as ammonium polyphosphate, or ammonium polyphosphate, is also known as Ammonium Polyphosphate, referred to as APP. Passed down in the fire retardant coating industry, or titled foamed flame retardant, or book as expansion coating special ammonium phosphate salt, common products in the market such as Exolit AP 422, Clariant APP 201, JD-APP201, also have JS-APP, MC-APP and other names. They are all the same thing, the essence is the same, but the composition is slightly different. And because it is applied in fireproof paint, it is also called ammonium polyphosphate for fireproof coating, expansion flame retardant polyammonium salt. Pharmaceutical signs, trade names are different, but they all refer to similar substances. When the world purchases, it should be recognized that their names are different but they are the same.
Safety & Operational Standards
Ammonium polyphosphate, white and tasteless, is widely used in intumescent coatings to reduce the risk of fire, but although its properties are relatively safe, it should not be ignored. Those who use it should be placed in a ventilated place away from the fire to avoid sun exposure and moisture. Storage must be closed and dry, and beware of moisture absorption and agglomeration. After unsealing, it should be used up as soon as possible. If there is any remaining, be sure to seal it tightly. During operation, wear protective hats, gloves, and goggles, and do not touch it directly with bare hands to prevent skin irritation. If it is accidentally contaminated with the skin, wash it with water. If there is still discomfort, seek medical attention. If you inhale dust or cause throat itching, you should move to a ventilated place. If it is serious, you need to be treated. During handling, it is advisable to handle it lightly to prevent the container from being damaged and leaking. In case of dripping, cover it with dry materials first, then collect and deal with it. Do not discard it in sewers or rivers. Isolate from acids, strong oxidizing agents, etc., and do not mix with storage. After operation, wash your hands on the clean surface before eating. Residue and residual materials should be punished according to local laws and regulations, and do not discard them at will. When incinerating, be careful to prevent the escape of harmful gases and take protective measures. In case of fire, dry powder and carbon dioxide fire extinguishers are preferred for rescue. Do not spray with water to prevent acid production from being harmful. Operators need to be trained and understand emergency operating procedures. Always check whether the container is leaking and whether the lid is complete. In case of leakage, the crowd will be quickly cleared, and dust and gas will not be inhaled. No unrelated people should be left in the Therefore, people are safe and secure, disasters can be prevented, and benefits can be used for a long time.
Application Area
Ammonium phosphate polymer, used in intumescent coatings, is really useful. This material expands in case of fire and turns into a dense carbon layer, which inhibits flames and protects the substrate. It is often used on the surface of buildings to prevent the spread of fire; it is also applied to steel structures to delay temperature rise and ensure structural stability. Boats, vehicles, warehouses, tunnels, etc., all rely on its effect to prevent fires. It can also be applied to the shell of electronic equipment to prevent damage caused by high temperature. In addition to fire protection, it also has environmental benefits and is widely used in modern engineering, transportation, and home safety. It is suitable for all kinds of high temperature and flammable places, showing its indispensable use.
Research & Development
Discuss the development of intumescent coatings, focusing on the research and development of ammonium phosphate salts, and have been exploring for decades. Ammonium phosphate polymers are stable in nature. In case of fire, phosphorus will be released into charcoal, causing the carbon layer to self-expand and inhibiting the depth of inflammatory flames. Its mechanism is subtle, and it is applied to steel structures, wood and many other materials, which not only has excellent flame retardant effect, but also meets environmental protection standards. Technicians have easily formulated to improve its particle size, dispersion, and even compatibility with resins and additives, resulting in improved performance. Recently, nanotechnology has been added to enhance thermal stability and anti-loss, prolonging the life of the coating. Scholars from all over the world compete to test, which not only contributes greatly to fire safety, but also provides a solid guarantee for green buildings. Convinced that with continuous research and development, ammonium phosphate polymers will become more and more perfect in the way of expansion coatings.
Toxicity Research
Ammonium Polyphosphate is a commonly used flame retardant component in intumescent coatings, which is used to improve the fire resistance of materials. However, the toxicity is unknown, so it should be studied. According to its chemical properties, ammonia and phosphorus compounds are released at high temperatures, which are absorbed by humans and may damage the respiratory tract and eye mucosa. The experiment was based on mice, and a single dose was administered. Depending on its acute toxicity, the LD50 value was much higher, indicating that the acute toxicity was minimal. Long-term exposure did not show any obvious accumulation dependence, nor did it cause important organ lesions. In vitro cell experiments, at high concentrations, little cell morphological changes were found, but mutation was not promoted, and carcinogenesis was not suspected. After skin contact, there was no obvious irritation reaction, but a large amount of inhalation could still cause discomfort. Overall, Ammonium Polyphosphate is used in intumescent coatings with moderate application and standard operation, and its toxicity risk is limited, but protective measures are still indispensable.
Future Prospects
Ammonium phosphate salts, especially polyammonium phosphate, have been used in intumescent fire retardant coatings in modern times, which are essential in fire protection technology. Looking at its characteristics, it is not only resistant to high temperature, but also can expand and isolate flames in case of fire, and the protective material is indispensable for disaster prevention. The technology of today's products is changing with each passing day, and the microstructure and compatibility methods are becoming more and more exquisite, which greatly increases its flame retardant efficiency. Looking to the future, the concept of environmental protection is gradually advancing, and green degradable materials will merge with it, or there may be new technologies such as nanotechnology and intelligent sensing, so that the coating can be self-healing and intelligent response. If it can be fully realized with low toxicity and low harm, cost-effective, its application will be expanded to high-rise buildings, traffic tunnels, precision instruments and many other fields. With innovation leading the way, the road ahead can be expected. Inflatable fire retardant coatings are the guarantee of a comfortable life and work, and ammonium polyphosphate is the leader of this path.
Where to Buy Ammonium Polyphosphate for Intumescent Coating in China?
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What is the Main Role of Ammonium Polyphosphate for Intumescent Coatings?
Phosphorus is a fire hazard and has always been valued by craftsmen. Today there are ammonium phosphate polymers, called ammonium polyphosphate, which are mainly used in paste coatings for fire protection, especially expansion coatings. Ammonium polyphosphate has stable properties, high temperature in case of fire, chemical changes, release ammonia gas, and decompose polyphosphoric acid. When fire is seen in the coating, ammonium polyphosphate is heated first, releasing acidic phosphorus, which reacts with the co-formulation material. When the acid meets the hydroxyl polymer, it promotes dehydration and carbonization, making the outer layer black carbonization and expansion layer, which is as thick as a shield and dense as a solid altar. Secondly, the expansion layer expands, which can block the heat flow of the flame and delay the flame. And because ammonium polyphosphate decomposes when gas escapes, the foam thickens, making the expansion layer more solid and preventing heat energy from penetrating into the substrate.
Ammonium polyphosphate is responsible for the expansion of the paste film, not only as a carbonization aid, but also as an acid source and a medium to promote the dehydration reaction. Its characteristics are stable, non-hygroscopic, and not easy to dissolve in water, so it is durable and can protect wood, stone, and metal for a long time. The coating is used in the same way as a carbon source and a gas source to form a ternary system of paste film, with phosphorus as the acid source, urea-formaldehyde as the carbon source, and melamine as the foaming gas source. The three complement each other and do their best to make the coating film produce carbon bubbles quickly in case of fire, protect it from the outside, delay the burning of the substrate, be firm and safe, and protect life and property.
Overall, ammonium polyphosphate is an important part of inflatable coatings, which can mainly dehydrate and promote charcoal in case of fire, face fire in the green layer, and heat in the barrier wall, which is beneficial to fire safety. In today's chemical coating processes, it is especially important for its use, which is a new fire protection device.
Ammonium polyphosphate is responsible for the expansion of the paste film, not only as a carbonization aid, but also as an acid source and a medium to promote the dehydration reaction. Its characteristics are stable, non-hygroscopic, and not easy to dissolve in water, so it is durable and can protect wood, stone, and metal for a long time. The coating is used in the same way as a carbon source and a gas source to form a ternary system of paste film, with phosphorus as the acid source, urea-formaldehyde as the carbon source, and melamine as the foaming gas source. The three complement each other and do their best to make the coating film produce carbon bubbles quickly in case of fire, protect it from the outside, delay the burning of the substrate, be firm and safe, and protect life and property.
Overall, ammonium polyphosphate is an important part of inflatable coatings, which can mainly dehydrate and promote charcoal in case of fire, face fire in the green layer, and heat in the barrier wall, which is beneficial to fire safety. In today's chemical coating processes, it is especially important for its use, which is a new fire protection device.
Ammonium Polyphosphate for Intumescent Coatings?
Ammonium phosphate polymers are an important flame retardant and are widely used in intumescent coatings for fire protection. There are several uses, which are briefly described as follows:
First, it is often compatible with carbon sources and gas sources. Ammonium phosphate polymers should be combined with polyols (such as pentaerythritol) and foaming agents (such as melamine) when entering coatings, and the weight should be determined in proportion. Harmonization is uniform, which can ensure the mechanism of expansion and foaming. When exposed to high temperature in case of fire, acid is released into charcoal, which thickens and forms a layer, isolates the flame, and shields the substrate from burning.
Second, it can be dissolved in water or some organic solutions. When formulating, water-based coating systems are often used for their good compatibility. Ammonium phosphate polymer powder can be dispersed in an appropriate solution first, ground finely and evenly, then mixed with resins and additives, stirred and mixed to make a uniform cloth. If it is a solvent-based system, it can also be selected for its suitable model, which is co-soluble with the solvent to darn the coating performance.
Third, the dosage should be balanced. Depending on the fire rating and use, the addition ratio of ammonium phosphate polymers often accounts for 10% to 30% or even more of the total solid content. If the dosage is too small, the expansion and flame retardant function will be insufficient. If the dosage is too much, the performance of the coating film will be greatly damaged. Therefore, it is necessary to choose the right medium, reconcile and fertilize.
Fourth, construction methods. After the expanded fireproof coating is added with ammonium phosphate polymers, it can be brushed, sprayed, and rolled. It should be applied to steel structures, wood, walls, etc., where flame retardancy is required. After coating, it should be dried naturally, or baked at low temperature to make the film thickness uniform. If multiple layers are applied, the front layer should be dried and then coated with the back layer to increase its firm protection.
Fifth, storage should be cautious. The paint preparation has been completed, and those containing ammonium phosphate polymers should be sealed and stored in a cool place to prevent moisture and agglomeration to maintain long-term effect. Use it immediately after opening, do not store it for a long time, and avoid qualitative change and loss of its nature.
In summary, the application of ammonium phosphate polymers must be combined with appropriate ingredients, and the proportion, dispersion, construction, and storage should be paid attention to, but in this way, the expansion type fireproof coating can recognize its flame retardant and protective function.
First, it is often compatible with carbon sources and gas sources. Ammonium phosphate polymers should be combined with polyols (such as pentaerythritol) and foaming agents (such as melamine) when entering coatings, and the weight should be determined in proportion. Harmonization is uniform, which can ensure the mechanism of expansion and foaming. When exposed to high temperature in case of fire, acid is released into charcoal, which thickens and forms a layer, isolates the flame, and shields the substrate from burning.
Second, it can be dissolved in water or some organic solutions. When formulating, water-based coating systems are often used for their good compatibility. Ammonium phosphate polymer powder can be dispersed in an appropriate solution first, ground finely and evenly, then mixed with resins and additives, stirred and mixed to make a uniform cloth. If it is a solvent-based system, it can also be selected for its suitable model, which is co-soluble with the solvent to darn the coating performance.
Third, the dosage should be balanced. Depending on the fire rating and use, the addition ratio of ammonium phosphate polymers often accounts for 10% to 30% or even more of the total solid content. If the dosage is too small, the expansion and flame retardant function will be insufficient. If the dosage is too much, the performance of the coating film will be greatly damaged. Therefore, it is necessary to choose the right medium, reconcile and fertilize.
Fourth, construction methods. After the expanded fireproof coating is added with ammonium phosphate polymers, it can be brushed, sprayed, and rolled. It should be applied to steel structures, wood, walls, etc., where flame retardancy is required. After coating, it should be dried naturally, or baked at low temperature to make the film thickness uniform. If multiple layers are applied, the front layer should be dried and then coated with the back layer to increase its firm protection.
Fifth, storage should be cautious. The paint preparation has been completed, and those containing ammonium phosphate polymers should be sealed and stored in a cool place to prevent moisture and agglomeration to maintain long-term effect. Use it immediately after opening, do not store it for a long time, and avoid qualitative change and loss of its nature.
In summary, the application of ammonium phosphate polymers must be combined with appropriate ingredients, and the proportion, dispersion, construction, and storage should be paid attention to, but in this way, the expansion type fireproof coating can recognize its flame retardant and protective function.
How is Ammonium Polyphosphate for Intumescent Coatings?
Ammonium phosphate polymer, known as Ammonium Polyphosphate in the world, is an important member of fire retardant coatings, and its use in expansion coatings is particularly significant. Considering its heat resistance, because of its high thermal decomposition temperature, it can maintain stability and is not easy to decompose when the flame is burning. Its structure is a polymeric state, with polyphosphate as the bone, so that it slowly decomposes at more than 280 degrees Celsius, releasing phosphorus-containing gas. With this mechanism, it can stimulate the carbonation reaction under high temperature conditions. Ammonium phosphate polymer is insoluble in room temperature water when heated, so it is not subject to violent fire and does not easily soften leakage. Thermal stability is better than that of monomer ammonium phosphate, and it is not easy to absorb moisture or be damaged by environmental moisture.
As for the application of intumescent coatings, ammonium phosphate polymers are used in combination with carbon sources and gas sources to release acidic phosphorides immediately when heated, catalyze the carbonization of carbon sources, and both promote expansion. Finally, a dense porous carbon bubble layer is formed on the surface of the substrate. This layer isolates the heat source from the outside, so that the substrates such as wood and steel under the coating are protected from high temperature attack and enhance the fire resistance limit. However, the thermal decomposition of ammonium phosphate polymers will not suddenly fail, and the slow-release effect is often at 300 to 400 degrees, which benefits the hysteresis heating process.
According to experiments, the degree of polymerization of commonly used ammonium phosphate polymers is different, and its heat resistance is slightly different. Those with high polymerization degree have especially high temperature resistance, which is suitable for high-performance fire protection places. Fly ash or smoke is slightly visible, it is caused by normal decomposition and release. In addition, its thermal decomposition products are mostly inorganic phosphates, which are non-corrosive, non-toxic, safe and reliable.
In summary, Ammonium Polyphosphate is the core component of the expansion type fire protection coating. Its heat resistance is excellent, and it can play a superior protective effect in high temperature environment. Today's design of fire protection system, the choice of high-quality ammonium phosphate polymer, can greatly improve the thermal stability and fire resistance of the coating, which is an indispensable good agent for modern fire protection materials.
As for the application of intumescent coatings, ammonium phosphate polymers are used in combination with carbon sources and gas sources to release acidic phosphorides immediately when heated, catalyze the carbonization of carbon sources, and both promote expansion. Finally, a dense porous carbon bubble layer is formed on the surface of the substrate. This layer isolates the heat source from the outside, so that the substrates such as wood and steel under the coating are protected from high temperature attack and enhance the fire resistance limit. However, the thermal decomposition of ammonium phosphate polymers will not suddenly fail, and the slow-release effect is often at 300 to 400 degrees, which benefits the hysteresis heating process.
According to experiments, the degree of polymerization of commonly used ammonium phosphate polymers is different, and its heat resistance is slightly different. Those with high polymerization degree have especially high temperature resistance, which is suitable for high-performance fire protection places. Fly ash or smoke is slightly visible, it is caused by normal decomposition and release. In addition, its thermal decomposition products are mostly inorganic phosphates, which are non-corrosive, non-toxic, safe and reliable.
In summary, Ammonium Polyphosphate is the core component of the expansion type fire protection coating. Its heat resistance is excellent, and it can play a superior protective effect in high temperature environment. Today's design of fire protection system, the choice of high-quality ammonium phosphate polymer, can greatly improve the thermal stability and fire resistance of the coating, which is an indispensable good agent for modern fire protection materials.
Is Ammonium Polyphosphate for Intumescent Coatings Environmentally Safe?
Ammonium phosphate polymers are commonly used in today's fire retardant coatings. They produce a lot of chemical reactions between phosphoric acid and ammonia salts, which accumulate and form a powder that is easily soluble in water. Based on this, craftsmen mix other materials to make a fireproof coating, which can be used for wood, stone, metal and other materials. It can spontaneously expand in case of fire and form a bubble-like loose body. It is used to insulate the flame, delay the fire, protect the substrate, and preserve the substance. How is the product environmentally safe?
Examine its production method and body. It has no highly toxic odor, no explosive and insidious, and is extremely stable at room temperature and pressure. In case of high temperature fire, its decomposition is released, mostly water vapor, ammonia, phosphoric acid and other substances, which are common in nature and have no lasting injury. And its residual ash, no heavy metal toxicity, does not pollute soil and waters, is easy to biodegrade, and conforms to the principle of ecological cycle.
However, it should be noted that although the body is not severely harmful, the coating may escape a little dust during combustion, so factory workers should wear protective gear to avoid inhalation of gas. Long-term exposure to high concentration environment, or there is a slight risk of irritating breathing, but compared with other fire retardants such as halogens, bromides, etc., it has been greatly defeated, and there is no worry about carcinogenic toxin storage. If used in combination with certain organic solvents and plasticizers, they should be compatible with their properties and do not cause corrosion to seep, which will damage safety.
At the environmental level, ammonium phosphate polymers do not accumulate in the environment, and the energy consumption in the preparation process is low. It is not like asbestos or heavy metals in ancient times, which accumulate in nature and have lasting hazards. The country has many norms and is listed as a safe and environmentally friendly fireproof material. By extension, civilian industrial use can be widely distributed, without causing ecological disorders, and people can live in peace and fear.
In summary, it can be seen that ammonium phosphate polymers are excellent products for fire safety. They have stable chemical properties, no long-term evils, and are properly applied. They are suitable for the needs of the world. If regulations are followed and arrangements are made prudently, even in the event of a major change in fire, we can also protect people with environmental protection and safety, and benefit Houkun.
Examine its production method and body. It has no highly toxic odor, no explosive and insidious, and is extremely stable at room temperature and pressure. In case of high temperature fire, its decomposition is released, mostly water vapor, ammonia, phosphoric acid and other substances, which are common in nature and have no lasting injury. And its residual ash, no heavy metal toxicity, does not pollute soil and waters, is easy to biodegrade, and conforms to the principle of ecological cycle.
However, it should be noted that although the body is not severely harmful, the coating may escape a little dust during combustion, so factory workers should wear protective gear to avoid inhalation of gas. Long-term exposure to high concentration environment, or there is a slight risk of irritating breathing, but compared with other fire retardants such as halogens, bromides, etc., it has been greatly defeated, and there is no worry about carcinogenic toxin storage. If used in combination with certain organic solvents and plasticizers, they should be compatible with their properties and do not cause corrosion to seep, which will damage safety.
At the environmental level, ammonium phosphate polymers do not accumulate in the environment, and the energy consumption in the preparation process is low. It is not like asbestos or heavy metals in ancient times, which accumulate in nature and have lasting hazards. The country has many norms and is listed as a safe and environmentally friendly fireproof material. By extension, civilian industrial use can be widely distributed, without causing ecological disorders, and people can live in peace and fear.
In summary, it can be seen that ammonium phosphate polymers are excellent products for fire safety. They have stable chemical properties, no long-term evils, and are properly applied. They are suitable for the needs of the world. If regulations are followed and arrangements are made prudently, even in the event of a major change in fire, we can also protect people with environmental protection and safety, and benefit Houkun.
How long is the storage and shelf life of Ammonium Polyphosphate for Intumescent Coatings?
Ammonium Polyphosphate (ammonium phosphate salt) is commonly used in intumescent coatings to cover its good effects of fire expansion and heat insulation protection. To ensure that its properties remain unchanged and its effectiveness persists, the storage method must not be careless. The offer is as follows:
Ammonium Polyphosphate is rich in phosphate ions and ammonium ions, and its properties are stable at room temperature and pressure. It should be stored in a cool, dry and ventilated place. It should not be exposed to direct sunlight, and it should be kept away from heat sources and humidity. The container should be airtight to prevent moisture absorption and agglomeration. If the air is humid, it is very easy to absorb moisture and agglomerate, or even partially hydrolyzed, and the effect is greatly reduced. Mixed storage is classified into categories, and should not be stored with reducing agents, strong acids or flammable substances. The receptacle is mostly made of polyethylene and polypropylene, and should not be made of metal or rusty containers. Every time it is unsealed, it should be sealed and stored quickly, otherwise it is easy to cause quality passivation.
The ambient humidity of the storage place should not exceed 65%, and the temperature should be between 10 and 30 degrees Celsius. If the warehouse is well ventilated, it can prevent the growth of mold and water vapor condensation. Regular inspections are required during storage to check for moisture or deterioration. If the color is found to be vague, agglomerated, humid or odor, it should be sampled to check its performance and discarded in case of suspicion.
If properly stored, the shelf life of Ammonium Polyphosphate can reach 24 months. When the storage and sealing state is intact and there is no significant change in the properties, the validity period may be moderately extended, but it is better to use it up within the indicated period. After unsealing, in case of humid air environment, its quality is easy to be inferior, so it should be used as soon as possible, and it should not be kept for a long time. If the shelf life exceeds the warranty limit, its chemical properties must be tested. If the properties are as old as the past, it can be used as appropriate. If it has lost its due effect, it should be discarded.
It is necessary to know the use of ammonium phosphate salt. If it is stored properly, the expansion flame retardant effect and the long-lasting quality of the coating can be verified. If the storage is not careful, although it is not long, it is easy to cause damage. When it is burned, it will be difficult to recover. It is to persuade the workers with respect, focusing on compliance and being more careful than daily use.
Ammonium Polyphosphate is rich in phosphate ions and ammonium ions, and its properties are stable at room temperature and pressure. It should be stored in a cool, dry and ventilated place. It should not be exposed to direct sunlight, and it should be kept away from heat sources and humidity. The container should be airtight to prevent moisture absorption and agglomeration. If the air is humid, it is very easy to absorb moisture and agglomerate, or even partially hydrolyzed, and the effect is greatly reduced. Mixed storage is classified into categories, and should not be stored with reducing agents, strong acids or flammable substances. The receptacle is mostly made of polyethylene and polypropylene, and should not be made of metal or rusty containers. Every time it is unsealed, it should be sealed and stored quickly, otherwise it is easy to cause quality passivation.
The ambient humidity of the storage place should not exceed 65%, and the temperature should be between 10 and 30 degrees Celsius. If the warehouse is well ventilated, it can prevent the growth of mold and water vapor condensation. Regular inspections are required during storage to check for moisture or deterioration. If the color is found to be vague, agglomerated, humid or odor, it should be sampled to check its performance and discarded in case of suspicion.
If properly stored, the shelf life of Ammonium Polyphosphate can reach 24 months. When the storage and sealing state is intact and there is no significant change in the properties, the validity period may be moderately extended, but it is better to use it up within the indicated period. After unsealing, in case of humid air environment, its quality is easy to be inferior, so it should be used as soon as possible, and it should not be kept for a long time. If the shelf life exceeds the warranty limit, its chemical properties must be tested. If the properties are as old as the past, it can be used as appropriate. If it has lost its due effect, it should be discarded.
It is necessary to know the use of ammonium phosphate salt. If it is stored properly, the expansion flame retardant effect and the long-lasting quality of the coating can be verified. If the storage is not careful, although it is not long, it is easy to cause damage. When it is burned, it will be difficult to recover. It is to persuade the workers with respect, focusing on compliance and being more careful than daily use.
