Shanxian Chemical
PRODUCTS
Ammonium Biphosphate
Shanxian Chemical
|
HS Code |
998007 |
| Name | Ammonium Biphosphate |
| Chemical Formula | NH4H2PO4 |
| Molar Mass | 115.03 g/mol |
| Appearance | White crystalline solid |
| Odor | Odorless |
| Density | 1.803 g/cm³ |
| Melting Point | 190 °C |
| Solubility In Water | 36 g/100 mL (20 °C) |
| Ph Of 0 1 M Solution | 4.2 - 4.6 |
| Acidity | Acidic salt |
| Application | Fertilizer, fire retardant |
As an accredited Ammonium Biphosphate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 5 - kg bag of Ammonium Biphosphate, well - sealed for chemical protection. |
| Storage | Ammonium biphosphate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and incompatible substances like strong bases. Store in tightly - sealed containers to prevent moisture absorption, which could affect its chemical properties. This helps maintain its quality and safety during storage. |
| Shipping | Ammonium Biphosphate is shipped in well - sealed containers to prevent moisture absorption and contamination. It should be transported in dry, ventilated vehicles, avoiding contact with incompatible substances to ensure safe delivery. |
Competitive Ammonium Biphosphate prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to info@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: info@liwei-chem.com
Historical Development
"The History of Ammonium Dihydrogen Salts"
In the ancient world, people did not know Ammonium Biphosphate. At that time, everything was simple, but the transformation of things was not refined.
In the Middle Ages, all sages began to study the changes of matter. Some wise people paid attention to various salts, but in Ammonium Biphosphate, it is difficult to investigate in detail. Its nature is unknown, and its use is not obvious.
Since the modern era, science and technology have advanced day by day. Researchers have been poor in the theory of micro, and the analysis of matter is fine. The nature of Ammonium Biphosphate was first understood, and it was known that it was beneficial to fertile fields and pharmaceuticals. So it was widely made and used in various industries. Its use is growing day by day, and its influence in the world is gradually increasing. From ancient times to the present, the cognition and application of Ammonium Biphosphate has undergone changes and gradually emerged from obscurity.
In the ancient world, people did not know Ammonium Biphosphate. At that time, everything was simple, but the transformation of things was not refined.
In the Middle Ages, all sages began to study the changes of matter. Some wise people paid attention to various salts, but in Ammonium Biphosphate, it is difficult to investigate in detail. Its nature is unknown, and its use is not obvious.
Since the modern era, science and technology have advanced day by day. Researchers have been poor in the theory of micro, and the analysis of matter is fine. The nature of Ammonium Biphosphate was first understood, and it was known that it was beneficial to fertile fields and pharmaceuticals. So it was widely made and used in various industries. Its use is growing day by day, and its influence in the world is gradually increasing. From ancient times to the present, the cognition and application of Ammonium Biphosphate has undergone changes and gradually emerged from obscurity.
Product Overview
An overview of an ammonium dihydrogen phosphate product (expressed in classical Chinese)
is now available, called "Ammonium Biphosphate", which is called ammonium dihydrogen phosphate in Chinese. This product is a white crystalline powder and has a wide range of uses in the chemical industry.
Its properties are easily soluble in water, and the aqueous solution is acidic. In agriculture, it is often used as a high-efficiency compound fertilizer, which can supply nutrients for phosphorus and nitrogen to crops, promote their growth and increase their yield. In industry, it is also an important chemical raw material, used in pharmaceuticals, electroplating, printing and dyeing and other industries.
The method of production is often obtained by neutralizing phosphoric acid and ammonia. The process is fine, and it is necessary to control temperature and quantity to obtain good products.
When storing it, it should be placed in a dry and cool place to avoid mixing with alkaline substances and prevent it from deteriorating. This "Ammonium Biphosphate" is actually an indispensable thing in chemical industry and agriculture.
is now available, called "Ammonium Biphosphate", which is called ammonium dihydrogen phosphate in Chinese. This product is a white crystalline powder and has a wide range of uses in the chemical industry.
Its properties are easily soluble in water, and the aqueous solution is acidic. In agriculture, it is often used as a high-efficiency compound fertilizer, which can supply nutrients for phosphorus and nitrogen to crops, promote their growth and increase their yield. In industry, it is also an important chemical raw material, used in pharmaceuticals, electroplating, printing and dyeing and other industries.
The method of production is often obtained by neutralizing phosphoric acid and ammonia. The process is fine, and it is necessary to control temperature and quantity to obtain good products.
When storing it, it should be placed in a dry and cool place to avoid mixing with alkaline substances and prevent it from deteriorating. This "Ammonium Biphosphate" is actually an indispensable thing in chemical industry and agriculture.
Physical & Chemical Properties
Ammonium biphosphate (Ammonium Biphosphate), a chemical substance. Its color is white, often granular or powdery. Looking at its physical properties, it is hygroscopic and gradually deliquescent in air. Its density is moderate, about 1.803 g/cm3, and its melting point is quite low, about 190 ° C.
In terms of its chemical properties, it is acidic and can neutralize with alkalis. It is soluble in water and can ionize ammonium ions and dihydrogen phosphate ions. Because of its phosphorus and nitrogen elements, it is a high-quality compound fertilizer in agriculture, which can promote crop growth and increase its resistance to stress. In industry, it is also commonly used as a flame retardant because it can form a protective film for heat insulation and prevent the spread of fire. It is an important chemical substance with both physical and chemical properties.
In terms of its chemical properties, it is acidic and can neutralize with alkalis. It is soluble in water and can ionize ammonium ions and dihydrogen phosphate ions. Because of its phosphorus and nitrogen elements, it is a high-quality compound fertilizer in agriculture, which can promote crop growth and increase its resistance to stress. In industry, it is also commonly used as a flame retardant because it can form a protective film for heat insulation and prevent the spread of fire. It is an important chemical substance with both physical and chemical properties.
Technical Specifications & Labeling
"Technical Specifications and Labeling of Ammonium Biphosphate (Commodity Parameters) "
Ammonium Biphosphate, that is, ammonium dihydrogen phosphate, its technical specifications are crucial. The appearance of this product is often a white crystalline powder with uniform particle size. In terms of chemical properties, the purity must reach a very high standard, and the impurity content should be minimal.
In terms of labeling, the product parameters should be clearly marked. On the package, its chemical name and molecular formula should be clearly defined, and it should be accompanied by a significant hazard label to warn its chemical characteristics. Its content parameters should also be accurate. For example, the content of the main component ammonium dihydrogen phosphate should not be lower than a certain proportion to ensure stable quality. In this way, all users, whether in industrial production or in scientific research experiments, can use this object accurately according to this technical specification and label.
Ammonium Biphosphate, that is, ammonium dihydrogen phosphate, its technical specifications are crucial. The appearance of this product is often a white crystalline powder with uniform particle size. In terms of chemical properties, the purity must reach a very high standard, and the impurity content should be minimal.
In terms of labeling, the product parameters should be clearly marked. On the package, its chemical name and molecular formula should be clearly defined, and it should be accompanied by a significant hazard label to warn its chemical characteristics. Its content parameters should also be accurate. For example, the content of the main component ammonium dihydrogen phosphate should not be lower than a certain proportion to ensure stable quality. In this way, all users, whether in industrial production or in scientific research experiments, can use this object accurately according to this technical specification and label.
Preparation Method
The method of making Ammonium Biphosphate is the first raw material. The raw materials are often phosphate rock and sulfuric acid, both of which are easy to obtain.
As for the production process, the phosphate rock is first finely ground, placed in a kettle with sulfuric acid, and heated to make the reaction. During this time, the heat and time must be strictly checked to ensure that the reaction is complete. The reaction steps, phosphate rock encounters sulfuric acid and turns into phosphoric acid, which is one of them; phosphoric acid recombines with ammonia gas, resulting in Ammonium Biphosphate, which is the other.
To promote its conversion, a permanent catalytic mechanism. In the reactor, a specific catalyst is placed to increase the rate of reaction and save energy. The product obtained in this way is finely purified and impurities removed to obtain a good product. The approximate method of making Ammonium Biphosphate is also that all links are interlocked and cannot be lost before it can become a high-quality product.
As for the production process, the phosphate rock is first finely ground, placed in a kettle with sulfuric acid, and heated to make the reaction. During this time, the heat and time must be strictly checked to ensure that the reaction is complete. The reaction steps, phosphate rock encounters sulfuric acid and turns into phosphoric acid, which is one of them; phosphoric acid recombines with ammonia gas, resulting in Ammonium Biphosphate, which is the other.
To promote its conversion, a permanent catalytic mechanism. In the reactor, a specific catalyst is placed to increase the rate of reaction and save energy. The product obtained in this way is finely purified and impurities removed to obtain a good product. The approximate method of making Ammonium Biphosphate is also that all links are interlocked and cannot be lost before it can become a high-quality product.
Chemical Reactions & Modifications
Ammonium Biphosphate is also a chemical substance. Its transformation and reaction properties are important to those who are concerned.
Its reaction, under specific conditions, may combine with other substances or decompose them. In case of an acid, it will cause the reaction of the combination and form a new compound, and its properties will also be affected.
As for its properties, the effect of resistance, force, etc. increases, its activity or increases, and the rate of reaction is also low. And in different solutions, its properties are also low.
Those who want to understand it must investigate the general factors and study the principles of its inversion, so as to obtain the truth of its inversion, and use it for work, work, etc., to benefit the world.
Its reaction, under specific conditions, may combine with other substances or decompose them. In case of an acid, it will cause the reaction of the combination and form a new compound, and its properties will also be affected.
As for its properties, the effect of resistance, force, etc. increases, its activity or increases, and the rate of reaction is also low. And in different solutions, its properties are also low.
Those who want to understand it must investigate the general factors and study the principles of its inversion, so as to obtain the truth of its inversion, and use it for work, work, etc., to benefit the world.
Synonyms & Product Names
Ammonium dihydrogen phosphate, its substance, is quite important in chemical substances. This substance has many aliases, or "monoammonium phosphate", which is its common synonym. It is sold in the market and is also widely known as this.
Ammonium Biphosphate is the English label of ammonium dihydrogen phosphate. Merchants sell this product under the trade name "monoammonium phosphate", which is easy for everyone to identify. It has a wide range of uses. It can be used as a high-quality fertilizer in agriculture, providing phosphorus, nitrogen and other nutrients for crop growth. In the industrial field, it also has many applications, such as in the preparation of flame retardant materials. Therefore, "monoammonium phosphate", as a synonym and trade name of Ammonium Biphosphate, has an important position in many industries such as chemical industry and agriculture.
Ammonium Biphosphate is the English label of ammonium dihydrogen phosphate. Merchants sell this product under the trade name "monoammonium phosphate", which is easy for everyone to identify. It has a wide range of uses. It can be used as a high-quality fertilizer in agriculture, providing phosphorus, nitrogen and other nutrients for crop growth. In the industrial field, it also has many applications, such as in the preparation of flame retardant materials. Therefore, "monoammonium phosphate", as a synonym and trade name of Ammonium Biphosphate, has an important position in many industries such as chemical industry and agriculture.
Safety & Operational Standards
On the Safety and Operation Specifications of Ammonium Dihydrogen Phosphate Products
The chemical industry is related to people's livelihood and national plans, but there are hidden dangers in it, which cannot be ignored. Today, Ammonium Biphosphate (ammonium dihydrogen phosphate), this product has a wide range of uses and is used in chemical industry and agriculture. However, if you want to ensure the safety of production and use, you must follow the operation specifications.
First of all, its safety. Although ammonium dihydrogen phosphate is not a highly toxic thing, it should not be ignored. If it touches the skin or causes slight discomfort, rinse it with water as soon as possible to remove its residue. If it enters the eye, do not rub it, rush to rinse it with a lot of water, and seek medical attention as soon as possible. If the dust is inhaled into the lungs, it will be harmful for a long time. Therefore, the operation place should be well ventilated, and the operator should wear protective equipment such as masks.
Times and operating specifications. When storing, it should be placed in a dry and cool place to avoid fire and heat to prevent it from deteriorating. When handling, handle it with care and do not damage the package. In the production operation room, the equipment must be checked frequently to ensure its normal operation. When batching, according to the precise recipe, the amount should be controlled to a minimum, and no deviation should be made. The reaction process, temperature, pressure, etc. must be carefully monitored. If there is any abnormality, it will be handled quickly.
The use of this product, whether it is applied to farmland to help the growth of crops; or used in chemical processes to contribute to industry, should take safety as the priority and act in accordance with operating norms. In this way, we can avoid disasters, achieve both benefits and safety, and enjoy the prosperity of chemistry without harm.
The chemical industry is related to people's livelihood and national plans, but there are hidden dangers in it, which cannot be ignored. Today, Ammonium Biphosphate (ammonium dihydrogen phosphate), this product has a wide range of uses and is used in chemical industry and agriculture. However, if you want to ensure the safety of production and use, you must follow the operation specifications.
First of all, its safety. Although ammonium dihydrogen phosphate is not a highly toxic thing, it should not be ignored. If it touches the skin or causes slight discomfort, rinse it with water as soon as possible to remove its residue. If it enters the eye, do not rub it, rush to rinse it with a lot of water, and seek medical attention as soon as possible. If the dust is inhaled into the lungs, it will be harmful for a long time. Therefore, the operation place should be well ventilated, and the operator should wear protective equipment such as masks.
Times and operating specifications. When storing, it should be placed in a dry and cool place to avoid fire and heat to prevent it from deteriorating. When handling, handle it with care and do not damage the package. In the production operation room, the equipment must be checked frequently to ensure its normal operation. When batching, according to the precise recipe, the amount should be controlled to a minimum, and no deviation should be made. The reaction process, temperature, pressure, etc. must be carefully monitored. If there is any abnormality, it will be handled quickly.
The use of this product, whether it is applied to farmland to help the growth of crops; or used in chemical processes to contribute to industry, should take safety as the priority and act in accordance with operating norms. In this way, we can avoid disasters, achieve both benefits and safety, and enjoy the prosperity of chemistry without harm.
Application Area
Ammonium Biphosphate is widely used. In the field of agricultural mulberry, it can be used as a fertilizer, to help the cultivation of crops, so that the grain is abundant, and the people have no worries about food. In the art of making fire, it is often a flame retardant agent. In case of flame, it suppresses its momentum, suppresses the vines of fire, and keeps the utensils in the place safe. It is also used in the genus of medicine, or useful, to adjust the drug, to assist in the healing of diseases. And in the industry of industry, it is also indispensable. It helps the system of all kinds of utensils, enhances its quality and prolongs its use. From this point of view, Ammonium Biphosphate is used in agriculture, in prevention, in medicine, and in work. It is essential for people's livelihood, and it is really a good thing for the world.
Research & Development
Since modern times, chemistry has flourished, and all kinds of products have changed with each passing day. Among them, Ammonium Biphosphate has a wide range of uses.
We dedicate ourselves to studying and exploring its properties in order to make sense of it. Looking at the method of its preparation, we strive to improve, hoping to improve the quality and increase its yield. In the field of application, there are also many pioneers. Or used for mulberry, to help the growth of crops; or used in industry, to help production.
However, the road of inquiry is not achieved overnight. There are many problems during this period, and we have worked tirelessly and tried again and again. We hope to overcome difficulties with wisdom and perseverance, so that the products of Ammonium Biphosphate can be unimpeded in the road of research and development, benefiting the world, and living up to our original intention of research.
We dedicate ourselves to studying and exploring its properties in order to make sense of it. Looking at the method of its preparation, we strive to improve, hoping to improve the quality and increase its yield. In the field of application, there are also many pioneers. Or used for mulberry, to help the growth of crops; or used in industry, to help production.
However, the road of inquiry is not achieved overnight. There are many problems during this period, and we have worked tirelessly and tried again and again. We hope to overcome difficulties with wisdom and perseverance, so that the products of Ammonium Biphosphate can be unimpeded in the road of research and development, benefiting the world, and living up to our original intention of research.
Toxicity Research
"On the Toxicity of Ammonium Dihydrogen Phosphate Products"
In today's world, the study of toxicity of chemical products is crucial. I focus on the toxicity study of Ammonium Biphosphate (Ammonium Dihydrogen Phosphate).
After many experiments, it is observed that under normal conditions, Ammonium Biphosphate is relatively stable. In case of hot topics or specific chemical environments, or changes. When it dissolves in water, the resulting solution has a slight impact on aquatic organisms. Take fish as a test, in high-concentration solutions, the behavior and physiology of fish are abnormal.
And long-term exposure to the environment containing this substance, the human body may feel uncomfortable. Inhalation of its dust, occasionally respiratory diseases; contact with the skin, or cause slight irritation. Although it is not highly toxic, it should not be ignored during production and use. Strict procedures should be followed to ensure safety. The proceeds of the study are expected to be used by the industry to make this product safe and good.
In today's world, the study of toxicity of chemical products is crucial. I focus on the toxicity study of Ammonium Biphosphate (Ammonium Dihydrogen Phosphate).
After many experiments, it is observed that under normal conditions, Ammonium Biphosphate is relatively stable. In case of hot topics or specific chemical environments, or changes. When it dissolves in water, the resulting solution has a slight impact on aquatic organisms. Take fish as a test, in high-concentration solutions, the behavior and physiology of fish are abnormal.
And long-term exposure to the environment containing this substance, the human body may feel uncomfortable. Inhalation of its dust, occasionally respiratory diseases; contact with the skin, or cause slight irritation. Although it is not highly toxic, it should not be ignored during production and use. Strict procedures should be followed to ensure safety. The proceeds of the study are expected to be used by the industry to make this product safe and good.
Future Prospects
Today there is a name "Ammonium Biphosphate", which is quite important among all kinds of chemical products. Looking at its current situation, although it has been useful, it still has a vast future.
In the field of agricultural planting, it can be used as fertile fertilizer, help seedlings and crops flourish, and make the soil often new. If it is studied in the future, it may be suitable for different soils and plants, so that the fertilizer effect will be more outstanding. In industrial manufacturing, it can be filled with raw materials and produce a variety of products. Future research may create better methods to reduce its consumption, increase its production, and gain benefits.
In the process of scientific research, the study of its nature and response is also unfinished. With time, in-depth exploration may inspire new ideas and explore new paths. Our generation of chemical researchers should have an enterprising heart, hoping that "Ammonium Biphosphate" will shine in the future, and it will have outstanding achievements in agriculture, industry and scientific research. It will be used by the world and benefit all.
In the field of agricultural planting, it can be used as fertile fertilizer, help seedlings and crops flourish, and make the soil often new. If it is studied in the future, it may be suitable for different soils and plants, so that the fertilizer effect will be more outstanding. In industrial manufacturing, it can be filled with raw materials and produce a variety of products. Future research may create better methods to reduce its consumption, increase its production, and gain benefits.
In the process of scientific research, the study of its nature and response is also unfinished. With time, in-depth exploration may inspire new ideas and explore new paths. Our generation of chemical researchers should have an enterprising heart, hoping that "Ammonium Biphosphate" will shine in the future, and it will have outstanding achievements in agriculture, industry and scientific research. It will be used by the world and benefit all.
Where to Buy Ammonium Biphosphate in China?
As a trusted Ammonium Biphosphate 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 Biphosphate supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the main uses of Ammonium Biphosphate?
Ammonium dihydrophosphate, commonly known as ammonium dihydrogen phosphate, is an important chemical substance with a wide range of uses.
In the field of agriculture, it is a high-quality compound fertilizer. Because it is rich in two key nutrients, nitrogen and phosphorus, nitrogen can help crops with lush stems and leaves, dark green leaves, and enhance photosynthesis; phosphorus can promote the development of crop roots, promote early flowering and early fruiting of crops, and improve crop stress resistance, such as drought resistance, cold resistance and disease resistance. It can be applied to all kinds of soils and crops, especially for crops that require more phosphorus and nitrogen, such as wheat, rice, corn and other cereal crops, as well as cash crops such as vegetables and fruit trees. It has a significant effect on improving crop yield and quality.
In the industrial field, it is widely used in the fire protection treatment of wood, paper, and fabrics. Because it decomposes phosphoric acid when heated, phosphoric acid can form a glassy covering on the surface of combustible materials, isolating oxygen, and then play a flame retardant role. It greatly improves the fire resistance of these materials. It is of great significance to ensure fire safety in the construction, furniture, textile and other industries.
In the field of electronics industry, it is also indispensable. Often used as a flux for electronic components, it can effectively remove oxides from metal surfaces, reduce the surface tension of solder, make solder better wet metal surfaces, and ensure the quality and reliability of solder joints. It is crucial in the welding of printed circuit boards and the assembly of electronic devices.
In addition, in the food industry, it can be used as a starter, nutrient fortifier, etc. In the brewing industry, it helps to promote the fermentation process of yeast; as a nutrient fortifier, it can supplement nutrients such as phosphorus and nitrogen in food and enhance the nutritional value of food. In short, ammonium dihydrophosphate plays a key role in many fields due to its diverse functions, and has a profound impact on industrial and agricultural production and people's daily lives.
What are the Physical and Chemical Properties of Ammonium Biphosphate
Ammonium dihydrophosphate, also known as ammonium dihydrogen phosphate, is an important chemical substance with unique physical and chemical properties and a wide range of uses in many fields.
When it comes to physical properties, this substance is normally a white crystalline powder with fine and uniform particles and a pure and flawless appearance. Its smell has no special odor, giving people a sense of simplicity. In terms of solubility, ammonium dihydrogen phosphate is easily soluble in water and can be quickly dispersed in water to form a uniform solution. It seems to be integrated into the arms of endless water, showing good hydrophilicity.
As for chemical properties, it is acidic. Because its molecular structure contains dissociable hydrogen ions, it can neutralize with bases. In case of sodium hydroxide, it will react with it to generate corresponding salts and water, which is a typical example of acid-base neutralization. And its stability is quite high, under conventional environment and general conditions, it is not easy to decompose on its own or undergo other violent chemical reactions, just like a calm person, adhere to its own characteristics.
These physical and chemical properties of ammonium dihydrogen phosphate determine that it plays an important role in industry, agriculture, food and other fields. In industry, because of its good solubility and reactivity, it is often used in the preparation of various phosphate products; in agriculture, as a high-quality fertilizer, it can provide key nutrients for crop growth by virtue of its phosphorus and nitrogen elements; in the food industry, because of its stability and harmlessness, it can be used as a food additive and plays a unique role.
Ammonium Biphosphate in Storage and Transportation
Ammonium diphosphate salts should be carefully stored and transported. This is due to their special nature, which is related to safety and quality, and cannot be ignored.
When storing, the first environment is dry. If it is in a humid place, ammonium diphosphate salts are prone to moisture dissolution and deterioration, resulting in quality deterioration. The warehouse must be well ventilated to drive moisture, and the temperature and humidity should be controlled within a moderate range. If the temperature is too high, it may cause it to decompose; if the humidity is too high, it will increase the risk of deliquescence.
Furthermore, keep away from fire and heat sources. Although ammonium diphosphate salts are not fiercely flammable substances, they are easily decomposed by heat, or generate harmful gases, which endangers the surroundings. Therefore, fire sources and heat sources should be avoided to ensure safety.
During transportation, the packaging must be solid and reliable. To prevent bumps and collisions, the packaging is damaged and the material spills out. The packaging material used should be moisture-proof and leak-proof to ensure that it is not damp or leaking during transportation.
At the same time, it is also necessary to avoid mixing with alkaline substances. Ammonium diphosphate salts react chemically when they encounter alkali, which not only damages their own effectiveness, but also appears to be dangerous. It is necessary to make them isolated from alkaline substances by transportation arrangements, and each one must be in a safe position to ensure safety.
In short, the storage and transportation of ammonium diphosphate salts requires following standards in the environment, packaging, and compatibility, and careful handling in order to protect their quality, ensure their safety, and avoid disasters.
What is the production process of Ammonium Biphosphate?
Ammonium biphosphate, often called ammonium dihydrogen phosphate ($NH_ {4} H_ {2} PO_ {4} $), its preparation method is an important matter in the chemical industry.
To make this salt, the common method is to take phosphoric acid and ammonia as materials. For phosphoric acid, phosphate rock is obtained by treating with sulfuric acid. Phosphate rock is rich in calcium phosphate and reacts with sulfuric acid: $Ca_ {3} (PO_ {4}) _ {2} + 3H_ {2} SO_ {4} = 3CaSO_ {4} + 2H_ {3} PO_ {4} $, which is precipitated by filtration of calcium sulfate to obtain crude phosphoric acid, and then refined to obtain pure phosphoric acid.
The preparation of ammonia is mostly synthesized by nitrogen and hydrogen under high temperature, high pressure and catalyst conditions: $N_ {2} + 3H_ {2}\ underset {high temperature and high pressure} {\ overset {catalyst} {\ rightleftharpoons}} 2NH_ {3} $.
The resulting phosphoric acid and ammonia are used as raw materials to neutralize the reaction. Ammonia is introduced into the phosphoric acid solution to control the degree of reaction. Because phosphoric acid is a ternary acid, it can be neutralized in steps. To obtain ammonium dihydrogen phosphate, the amount of ammonia needs to be precisely controlled, so that the reaction is carried out according to the formula of $H_ {3} PO_ {4} + NH_ {3} = NH_ {4} H_ {2} PO_ {4} $.
After the reaction is completed, the obtained solution is evaporated and concentrated, so that the water is gradually lost. Ammonium dihydrogen phosphate crystallizes and precipitates due to the change of solubility. After cooling and crystallization, more crystals can be obtained. After filtering, the crystals and the mother liquor are separated, and the crystals are washed with an appropriate amount of cold water, except for the surface impurities, and finally dried to obtain pure ammonium dihydrogen phosphate products. This is a common production process of ammonium dihydrogen phosphate
How Ammonium Biphosphate Affects the Environment
Ammonium biphosphate has a very important impact on the environment and cannot be ignored.
If this substance is widely dispersed in nature, the first to bear the brunt is the aquatic ecology. If it flows into rivers, lakes and marshes, the phosphorus element in it may cause eutrophication of the water body. Algae in the water, get this nutrient, such as rain, rapid reproduction. Algae blooms, the water surface is shaded, the underwater light is sharply reduced, and the photosynthesis of aquatic plants is blocked, resulting in insufficient oxygen generation. And after the algae die, they decompose by microorganisms and consume a lot of oxygen in the water, eventually causing the water body to be hypoxic, fish, shrimp, shellfish and other aquatic organisms, or die due to asphyxiation, and the ecological balance is seriously damaged.
In the soil environment, long-term application of ammonium diphosphate also has drawbacks. Ammonium ions contained in it can be converted into nitrate ions through nitrification in the soil. This process will acidify the soil and change the soil pH. Soil acidity increases, which may affect the activity of many soil microorganisms, which are crucial in soil nutrient cycling and decomposition of organic matter. In addition, soil acidification may also cause certain nutrients in the soil, such as calcium and magnesium, to change their solubility or leach severely, reducing soil fertility and affecting plant growth.
In terms of atmospheric environment, although ammonium diphosphate itself is not the main source of atmospheric pollutants, during its production process, if it is not handled properly, volatile substances such as ammonia may escape. When ammonia enters the atmosphere, it can undergo complex chemical reactions with other pollutants and affect the chemical composition of the atmosphere. And after ammonia settles, it may also indirectly affect the soil and water environment.
From this perspective, the impact of ammonium diphosphate on the environment is intricate and involves the three realms of water, soil and air. Our use and disposal should be done with caution to avoid irreparable damage to the ecological environment.
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