Monoammonium Phosphate Industrial Grade MAP
| HS Code | 548486 |
| Chemical Formula | NH4H2PO4 |
| Molecular Weight | 115.03 |
| Appearance | white crystalline powder |
| Solubility In Water | easily soluble |
| Density | 1.803 g/cm³ |
| Melting Point | 190 °C |
| Ph Value Of Aqueous Solution | 4.4 - 4.8 |
| Phosphorus P2o5 Content | usually around 61% |
| Nitrogen N Content | about 11% |
| Thermal Stability | decomposes on heating |
As an accredited Monoammonium Phosphate Industrial Grade MAP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Monoammonium Phosphate Industrial Grade MAP is packaged in paper bags, lined with moisture-proof film, and sealed with ropes. The weight of each bag is based on the usual system for easy handling. |
| Storage | Store Monoammonium Phosphate Industrial Grade MAP in a dry and ventilated warehouse, avoid moisture and high temperature, stack in order, and leave gaps. |
| Shipping | Transport Monoammonium Phosphate Industrial Grade MAP, need to protect from sun and rain, handle gently, do not let the packaging break, separate from other things. |
Competitive Monoammonium Phosphate Industrial Grade MAP 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
Email: sales2@liwei-chem.com
Historical Development
The development of Monoammonium Phosphate Industrial Grade MAP is accompanied by the rise of the chemical industry. In the early days, people found that phosphorus and nitrogen are beneficial to plant growth, so they explored compounds containing these elements. After continuous research and practice, the preparation method of Monoammonium Phosphate Industrial Grade MAP was mastered. From the initial simple production to the current mature process and considerable output, it is widely used in many fields such as agriculture and industry.
Product Overview
Monoammonium Phosphate Industrial Grade MAP is a white crystalline powder or granular solid, odorless, and has good water solubility. It is rich in nitrogen and phosphorus nutrients. It is a high-quality fertilizer in agriculture and has many uses in industry. It is a multifunctional chemical product.
Physical & Chemical Properties
In terms of physical properties, Monoammonium Phosphate Industrial Grade MAP has a melting point of about 190℃, moderate density, and low hygroscopicity, but it will still clump if placed in a humid environment for a long time. It has stable chemical properties and can undergo chemical reactions in an acidic or alkaline environment to release or combine corresponding ions.
Technical Specifications & Labeling
工业磷酸一铵的技术规格就像工匠精心打造的工具，尺寸、材质都一丝不苟。氮磷养分含量关系到肥料的根本功效，必须符合标准数值。如果含量不符合标准，就无法使用；水分含量也必须严格控制。如果被水浸湿，轻则结块，重则变质；颗粒大小根据用途而有所不同，可以像细沙一样喷洒，也可以像玉米一样播种，都有固定的规则。这些数值就像车轮的辐条、房屋的梁柱，缺一不可。稍有差错，就很难成为合格的产品。
Preparation Method
Monoammonium Phosphate Industrial Grade MAP is usually prepared with phosphoric acid and liquid ammonia as raw materials. Phosphoric acid and liquid ammonia are introduced into the reactor in a certain ratio, and neutralization reaction is carried out at a suitable temperature and pressure. After concentration, crystallization, drying and other processes, the finished product is obtained. During the reaction process, the raw material ratio, reaction temperature and time must be strictly controlled to ensure stable product quality.
Chemical Reactions & Modifications
Monoammonium Phosphate Industrial Grade MAP dissolves in water in the soil, ionizes ammonium ions and phosphate ions, and is absorbed and utilized by plants. When mixed with other chemical substances, double decomposition reactions can occur to generate new compounds. By adding additives or changing the production process, it can be modified to adjust product performance, such as improving fertilizer efficiency and solubility.
Synonyms & Product Names
Synonyms of Monoammonium Phosphate Industrial Grade MAP include diammonium phosphate, etc. Although the names are different in different regions, industries or literature, they all refer to this industrial grade monoammonium phosphate product.
Safety & Operational Standards
When using and operating Monoammonium Phosphate Industrial Grade MAP, operators must wear protective equipment to avoid contact with skin and eyes. If contact occurs accidentally, rinse immediately with plenty of water. Storage and transportation must comply with relevant regulations to prevent the product from getting damp and deteriorating. Firefighting facilities should be installed in the workplace to prevent fire accidents.
Application Area
In the agricultural field, Monoammonium Phosphate Industrial Grade MAP is used as a high-efficiency compound fertilizer to provide nitrogen and phosphorus nutrients to crops, promote crop growth and increase yields; in the industrial field, it is used in flame retardant production, water treatment, food additives and other industries, playing different roles and having broad application prospects.
Research & Development
Currently, the Research & Development of Monoammonium Phosphate Industrial Grade MAP is ongoing. Researchers are committed to optimizing production processes, reducing energy consumption, and reducing environmental pollution; developing new modified products to improve product performance and utilization; exploring its application possibilities in emerging fields such as new energy and biomedicine, and expanding the boundaries of product application.
Toxicity Research
According to Toxicity Research, Monoammonium Phosphate Industrial Grade MAP is mildly toxic and does not cause significant harm to humans or the environment when used normally. However, if taken in large quantities or exposed to high concentrations for a long time, it can also harm the body. Therefore, those who use this substance should strictly abide by safety regulations and not take more than necessary to ensure safety.
Future Prospects
The future prospects of Monoammonium Phosphate Industrial Grade MAP are bright. The demand for high-efficiency fertilizers in agriculture continues to grow, new applications in the industrial field are constantly being developed, and driven by technological innovation, its output and quality will be further improved, and product performance will be continuously optimized. It is expected to play an important role in more fields, and the market prospects are very promising.
Where to Buy Monoammonium Phosphate Industrial Grade MAP in China?
As a trusted Monoammonium Phosphate Industrial Grade MAP 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 Monoammonium Phosphate Industrial Grade MAP supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
How to combine Monoammonium Phosphate Industrial Grade MAP with other fertilizers for the best effect in agricultural fertilization?
Monoammonium Phosphate Industrial Grade MAP is rich in nitrogen and phosphorus. In agricultural fertilization, it can achieve twice the result with half the effort only if it is properly combined with other fertilizers. Mixed with organic fertilizers, such as manure and compost, organic fertilizers can improve soil structure, enhance water and fertilizer retention capacity, create conditions for the retention of Monoammonium Phosphate Industrial Grade MAP nutrients, and the combination of the two can make the fertilizer effect more lasting. Combined with potash fertilizers, such as potassium sulfate and potassium chloride, it can supplement the potassium element required for crop growth. Nitrogen, phosphorus and potassium work synergistically to meet the various nutritional needs of crops and improve crop resistance and yield. However, it should not be mixed with alkaline fertilizers, such as wood ash and lime nitrogen, because they are acidic and will undergo neutralization reactions when they meet alkaline fertilizers. Nitrogen and phosphorus elements are easily volatilized and lost in the form of ammonia, etc., reducing fertilizer efficiency. When applying in combination, it is also necessary to reasonably determine the ratio and application method according to the crop type, growth stage and soil fertility, or apply in layers or mix, so that Monoammonium Phosphate Industrial Grade MAP can complement other fertilizers and maximize the fertilizer effect.
Storage of Monoammonium Phosphate Industrial Grade MAP, if caking has occurred, how to deal with it?
When storing Monoammonium Phosphate Industrial Grade MAP, if caking occurs, don't panic first, and properly dispose of it according to the degree of caking. If the caking is slight, you can put it in a dry and ventilated place, tap the package gently to loosen the caking, or pour it out and carefully crush it with a wooden stick or other tools. After it returns to granular shape, it can still be used normally, and the fertilizer effect is less affected. If the caking is serious and hard, it can be dissolved in water, and the solution can be made for watering or spraying, but it is necessary to calculate the concentration well to avoid burning crops due to excessive local concentration. Agglomeration is mostly caused by a humid storage environment. Therefore, after processing, it is necessary to improve storage conditions, replace damaged packaging, strengthen ventilation and dehumidification of the warehouse, raise the cargo stack, and keep away from water sources to prevent agglomeration again. In this way, even if agglomeration occurs, it can be properly handled to reduce losses and not delay the use of fertilizers in agricultural production.
Preparation of Monoammonium Phosphate Industrial Grade MAP, what effect does the concentration of raw phosphoric acid have on the reaction?
Preparation of Monoammonium Phosphate Industrial Grade MAP, phosphoric acid and liquid ammonia are used as raw materials, and the concentration of phosphoric acid has a profound impact on the reaction. If the concentration of phosphoric acid is too low, there will be less effective ingredients in the solution, the reaction rate will be slow, more liquid ammonia and time will be consumed, energy consumption will increase, and the product yield will be low, and impurities will increase relatively, affecting product quality. If the concentration is too high, phosphoric acid has high viscosity, and it is not easy to disperse evenly when mixed with liquid ammonia, the reaction is difficult to proceed fully, and it is easy to overheat locally, causing side reactions, generating impurities such as ammonium pyrophosphate, and reducing the purity of Monoammonium Phosphate Industrial Grade MAP. Generally speaking, the concentration of phosphoric acid needs to be controlled within an appropriate range. During the reaction, liquid ammonia is slowly added while stirring. The reaction temperature and pH value are monitored in real time to accurately control the reaction process. Only by selecting the phosphoric acid raw material with the appropriate concentration and finely controlling the reaction can high-quality Monoammonium Phosphate Industrial Grade MAP be efficiently produced to meet industrial and agricultural needs.
What are the consequences of excessive addition of Monoammonium Phosphate Industrial Grade MAP in industrial water treatment?
Although Monoammonium Phosphate Industrial Grade MAP has a purification effect in industrial water treatment, excessive addition will cause immediate disasters. First, excessive phosphorus content in water will promote excessive reproduction of microorganisms, especially algae, which can easily cause eutrophication of water bodies, deteriorate water quality, cause algal blooms, block pipes, and affect the normal operation of water treatment equipment. Secondly, excessive Monoammonium Phosphate Industrial Grade MAP may react with other ions in the water to generate a large amount of sediment, which not only increases the burden of sludge treatment, but also may adhere to the surface of the equipment to form dirt, reduce the heat transfer efficiency of the equipment, and accelerate equipment corrosion. In addition, excessive addition will also cause waste of reagents and increase water treatment costs. Therefore, in industrial water treatment, the dosage of Monoammonium Phosphate Industrial Grade MAP must be accurately determined based on the water quality, through experiments and monitoring, and it must not be blindly added to ensure that the water treatment effect and economic benefits are both achieved.
How to avoid adverse effects on the soil when using Monoammonium Phosphate Industrial Grade MAP?
If you want to protect the health of the soil when using Monoammonium Phosphate Industrial Grade MAP, you need to take a multi-pronged approach. First, accurately apply fertilizers according to soil test results and crop needs, avoid blindly applying large amounts, and prevent excessive accumulation of nitrogen and phosphorus elements in the soil, which will destroy the ecological balance of the soil. Secondly, adopt reasonable fertilization methods, such as deep fertilization and layered fertilization, to reduce fertilizer residues on the soil surface, reduce the risk of phosphorus loss with surface runoff and pollute water bodies, and at the same time facilitate crop root absorption and improve fertilizer utilization. Furthermore, use it in conjunction with other fertilizers and soil conditioners, such as adding organic fertilizers and biological fertilizers, to improve soil structure, enhance the soil's ability to adsorb and retain nutrients, promote the transformation and absorption of Monoammonium Phosphate Industrial Grade MAP nutrients, and reduce its residues in the soil. In addition, regularly test the soil pH and nutrient content, and adjust the fertilization strategy according to changes. Only in this way can we meet the needs of crop growth while avoiding adverse effects such as soil compaction and salinization, and protect the long-term fertility of the soil.
