Triethyl Phosphate

Triethyl Phosphate

    Specifications
    HS Code 791614
    Chemical Formula C6H15O4P
    Molar Mass 182.154 g/mol
    Appearance Colorless, odorless liquid
    Density 1.068 g/cm³ at 20 °C
    Boiling Point 215 - 216 °C
    Melting Point -56 °C
    Flash Point 115 °C
    Solubility In Water Soluble
    Vapor Pressure 0.02 mmHg at 25 °C
    Refractive Index 1.4055 at 20 °C

    As an accredited Triethyl Phosphate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Triethyl Phosphate packaged in 5 - liter containers for chemical use.
    Storage Triethyl phosphate should be stored in a cool, dry, well - ventilated area, away from heat sources and open flames to prevent fire risks. Keep it in tightly - sealed containers to avoid moisture absorption and evaporation. Store it separately from oxidizing agents and reactive substances to prevent potential chemical reactions. Regularly check storage conditions and containers for integrity.
    Shipping Triethyl Phosphate is shipped in well - sealed containers, often drums or tanks. It must comply with regulations for hazardous chemicals during transportation to ensure safety from potential spillage and environmental harm.
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    Triethyl Phosphate Triethyl Phosphate
    General Information
    Historical Development
    Triethyl phosphate was first recorded in the late 19th century. The refining technology originated from Western scholars. After experiments, it was gradually perfected. By the 20th century, the process became more and more refined, and it was widely used in flame retardant, solvent, plasticization and other fields, making it an important product. In the past, chlorine phosphoric acid and ethanol were used as raw materials, and the purity was still insufficient. Then scientific researchers improved the conditions, using anhydrous method and water legal method, the purity was doubled, and the use was wider. During this period, the military and chemical fields especially relied on this material for urgent needs. In the new century, the concept of green environmental protection has flourished, and the synthesis technology has changed with each passing day. The output has increased, and the by-products have decreased. So far, triethyl phosphate has spread all over the world, providing a solid foundation for scientific research and industry, and showing the epitome of the historical development of chemicals.
    Product Overview
    Triethyl phosphate, molecular formula C6H15O4P, is a transparent colorless liquid with a slightly special odor, soluble in ethanol, ether and various organic solvents, slightly soluble in water. Stable properties, good flame retardancy and plasticity, often used as flame retardant, plasticizer in plastics, rubber, coatings. Its generation is derived from the esterification reaction of ethanol and phosphate, easy to operate and high yield. It has good chemical inertness and can be widely used in pesticide intermediates, pharmaceutical synthesis and petroleum additives. It can also be used as a solvent in cellulose ethers, esters and resin processing to promote product properties and enhance heat and wear resistance. It is highly efficient and adaptable, economical and practical, and is highly respected by the industry. It is an indispensable material for modern fine chemicals.
    Physical & Chemical Properties
    Triethyl phosphate, usually a colorless transparent liquid with a specific gas. Its boiling point is about 215 degrees Celsius, it condenses at minus 55 degrees Celsius, and its density is 1.068 at 20 degrees Celsius. It has good solubility and is easily soluble in ethanol, ethers and most organic solvents, and can also be dissolved in water, with a ratio of more than 10%. It is chemically stable, but decomposes when it encounters hot topics, releasing phosphorus oxides and organic alcohols. It is slightly hygroscopic, and can react violently when it encounters strong oxidants. It can also interact with strong acids and bases. Its vapor is non-flammable in air, but it is dangerous to decompose in high temperature environments. It is often used as a flame retardant, solvent and plasticizer, and is mostly used in organic synthesis and industrial applications.
    Technical Specifications & Labeling
    Triethyl phosphate, in the shape of a clear liquid, with no or yellowish color. Its molecular formula is C6H15O4P, and its molecular weight is 182.16. The boiling point is about 215 degrees Celsius, the freezing point is nearly -56 degrees Celsius, and the specific gravity (20/4 ° C) is 1.069. The refractive index (n20D) is about 1.405. Slightly soluble in water, soluble in organic solvents such as alcohols and ethers. The purity is often more than 99%, and the moisture content does not exceed 0.1%. The acidity (calculated as H3PO4) is less than 0.05%, and the color (APHA) is less than 30. The net weight of each barrel is 200 kg. It is sealed and moisture-proof. It is stored in a cool and dry place. It is protected from strong light and high temperature. It needs to prevent leakage and collision during transportation. It is used for flame retardancy and plasticization, and can also be used as a solvent The label is complete with chemical name, batch number, manufacturer name and date to comply with the specification.
    Preparation Method
    For triethyl phosphoric acid, take phosphoric acid as the parent body and ethanol as the auxiliary, and the ratio of the two is according to the law, and combine it in the reactor. First, the phosphoric acid is slightly heated, ethanol is gradually added, and the mixture is slowly stirred to make it evenly mixed. Then sulfuric acid is used as a catalyst to initiate an esterification reaction, and the temperature is slowly raised, which is maintained at about the boiling point. The reaction lasts for several hours. During this period, water is precipitated, and a reflux device must be used to guide it, so that the reaction can be purified. After cooling, it is separated by a liquid separation method, and the resulting crude product is distilled under reduced pressure to remove impurities and purify. Its catalytic principle uses sulfuric acid to promote the dehydration of phosphoric acid hydroxyl and ethyl alcohol hydroxyl to generate triethyl phosphate and water. During the reaction In this way, triethyl phosphoric acid can be prepared into chromosomal alcohol, which has a multi-purpose effect.
    Chemical Reactions & Modifications
    Triethyl phosphate is an organophosphorus compound with clear liquid properties and slightly aromatic gas. It is chemically active. In case of high temperature or strong acid and alkali, it is easy to decompose and release phosphate and alcohol groups. It can also replace each other with halogen hydrocarbons to form new phosphate ester derivatives. In case of amines, it can be modified by transesterification to obtain a variety of organophosphorus materials with different properties and various uses. It can be used as a flame retardant modifier, which can be copolymerized with polymers and embedded in the main chain to improve the fire resistance and thermal stability of materials. And because of its phosphorus ester structure, it is easy to complex with metals, and can be modified for catalysis or extraction. According to the chemical reaction and modification methods, according to the reaction conditions and compatible materials, triethyl phosphate can be derived from a wide range of new substances, new ones, and more widely used.
    Synonyms & Product Names
    Triethyl phosphate is a common name in chemicals, also known as triethyl phosphate, or triethyl phosphate. Its synonyms include triethyl phosphate, triethyl phosphate, TEP, etc. When the goods are in circulation, they may be used in the world as Triethyl Phosphate, Phosphoric Acid Triethyl Ester, TEP. Westerners often call Triethyl Phosphate, but it is abbreviated by TEP. Market trade, or use triethyl phosphate or triethyl phosphate as its logo. Pharmaceutical books, sometimes see its name as triethyl phosphate or triethyl phosphate. Although the name of triethyl phosphate is unique, it refers to one. It is used in many fields such as flame retardant, plasticizing and solvents. There are many different names and many trademarks, please be clear to avoid confusion.
    Safety & Operational Standards
    For triethyl phosphate, chemicals are also used. Its nature is transparent and colorless liquid, with a faint fragrance. However, it is dangerous and cannot be ignored. The deacon of the device must abide by safety regulations. For storage, it is advisable to use a closed container and store it in a cool and ventilated place, away from the heat source of the kindling, and do not store it with strong oxidants and strong acids. When taking it, be sure to wear protective gloves, protective glasses and masks to prevent the liquid from touching the skin and entering the eyes or its vapor inhalation, hurting the skin and mucous membranes. The operating place must be equipped with ventilation facilities to prevent the accumulation of steam and reduce the harm. During the operation, be careful not to let the overturning leak. If you splash on the body, wash it with water urgently. If you inhale its gas, you should move it to a place with fresh air. Those who are serious should seek medical attention urgently. Handling should be handled with care to avoid impact and leakage. Its disposal should follow the relevant national environmental protection regulations, and should not be dumped into water and soil at will. In case of fire, use dry powder, carbon dioxide and other fire extinguishers to put out the fire, and do not use water to prevent the spread. Always be vigilant and do not forget to educate colleagues. Anyone who enters the place of operation should receive Security Training. Record the operation process and keep track of the behavior. Adhering to regulations and disciplines is to ensure the safety of personal and property, and to achieve the important task of social stability. However, although triethyl phosphate may be useful, only a gentleman should be careful, so there will be no future troubles.
    Application Area
    Triethyl phosphate, with mild and excellent performance, dissolves in a variety of organic solvents, and is an important material for chemical products. It is widely used, especially known as a flame retardant, which can give plastics, rubber and fire retardant coatings non-flammable characteristics and ensure the safety of users. In addition, it is often an intermediate in organic synthesis, used in the preparation of pesticides, medicines and dyes to promote molecular transformation. It can also be used as a solvent to help dissolve resins and adhesives and improve process efficiency. Moreover, because of its chemical stability, it is used as a lubricating oil additive to enhance lubrication performance and slow down the wear and tear of machine parts. Therefore, triethyl phosphate has an irreplaceable position in the fields of industry, agriculture and medicine, and is an indispensable assistant to modern industry.
    Research & Development
    Triethyl Phosphate, referred to as TEP, is commonly used in the chemical industry today. Its liquid is clear in color and mild in taste. It is soluble in a variety of organic solvents. In the past, phosphoric acid and ethanol were used as raw materials and were obtained by esterification. Researchers have studied its properties and found that TEP has excellent flame retardant characteristics and is often used as an additive for plastics, rubber, adhesives and other products. Chemical researchers have found that it can be used as an intermediate in organic synthesis and can also be used as a solvent to carry a variety of reactions. Today's market demand is increasing, focusing on high purity and green environmental protection methods. Technicians improve the process to help catalyze, reduce energy consumption, and seek environmental protection. And with continuous production, improve production efficiency, and reduce by-product waste, which is not inconsistent with economic interests and ecology. The development of Triethyl Phosphate is the key to modern industrial progress.
    Toxicity Research
    Triethyl phosphate is an organophosphorus compound. It has a slightly bitter taste at the entrance and begins to dissolve in water and ethanol. Many scholars have tried it on mice in the past to investigate its acute toxicity, and the half lethal dose was 1,370 milligrams per kilogram orally. However, the toxicity caused by percutaneous absorption is slightly lower than that of oral administration. Long-term exposure to this substance in humans can cause muscle weakness, dizziness, drowsiness, and even the risk of nervous system damage. However, low-dose exposure is not significant. Animal experiments have shown that triethyl phosphate is not a strong mutagenic agent, and its carcinogenicity is not clearly demonstrated. It has limited effect on chromosome damage in cell culture. If exposed to high doses, mild changes in the liver and kidneys can be seen. Therefore, although this product is often used in the field of plasticizers and flame retardants, it should be operated with caution to prevent accidental suction and contact, and remember the essence of proper management.
    Future Prospects
    Triethyl phosphate has stable properties and is widely used. Nowadays, the process is advancing day by day, the output is increasing, and the quality is also perfect. Looking at today's environmental protection and new energy at the same time, triethyl phosphate as a flame retardant and an organic synthesis intermediate has a promising future. Its purification technology is becoming more and more refined, by-products are reduced, and green production is becoming the norm. In the foreseeable future, if new usage is developed, it may be expanded to high-performance materials, pharmaceutical preparations, energy storage and other fields. With the smooth flow of international trade, the demand at home and abroad is increasing, and the variety of varieties and applications will surely lead the industry to upgrade and refresh. But with continuous innovation, technological updates, and coordinated green concepts, the future of triethyl phosphate is promising and bright.
    Where to Buy Triethyl Phosphate in China?
    As a trusted Triethyl Phosphate 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.
    Frequently Asked Questions

    As a leading Triethyl Phosphate 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 Triethyl Phosphate?
    Triethyl phosphate, a chemical product, is also stable in its properties, and has a weak taste in its color solution. It dissolves in multiple solvents and can also be miscible in water. Its method is to take phosphoric acid or its derivatives and esterify them with ethanol. Uses are widely used, especially in the fields of engineering, engineering, and scientific research.
    First, triethyl phosphate is a good flame retardant. It is made in plastics, rubber, rubber, and fat, and is added to it, which can improve its fire resistance. The chemical contains phosphorus atoms, which decompose to form a multi-phosphorus oxide compound, forming a protective compound, blocking oxygen, and preventing the spread of fire. Therefore, modern flame retardant materials are often used to help.
    Second, it is soluble. Among its properties, it is compatible with many compounds, which can help to dissolve dyes, lipids, oils, and multi-component synthetic raw materials. It is used for chemical production and production, and is widely used. In addition, it is also used for extraction in the process of extraction in the process of extraction in the process of extraction, which is conducive to component distribution and improves the quality of the product.
    Third, it can be used for the synthesis of specific ingredients such as oil and weeding. It is also used to synthesize phosphate precursors and promote the synthesis of phosphate compounds.
    Fourth, it is often used as a catalyst for fuel addition. Aviation, aerospace and other fuels are mixed to improve the combustion performance of triethyl phosphate esters to improve safety and efficiency. In some practical synthesis, it is used as a catalyst to promote the reaction rate.
    And because of its low toxicity and environmental friendliness, it has been gradually developed by the industry. As mentioned above, triethyl phosphate is an indispensable multi-functional product in the chemical industry, materials, engineering, and other industries.
    What are the Chemical Properties of Triethyl Phosphate?
    Triethyl phosphate, chemical formula C6H15O4P, if it has no color and a light taste, it is formed by esterification of phosphoric acid and ethanol. Its properties are moderate and non-flammable, but it can be an organic solvent. Triethyl phosphate, with good stability, is not easy to decompose at room temperature and pressure, and has a slight hydrolysis in contact with water. For a long time, ethanol and phosphoric acid are produced. Mixed with strong acid and alkali, it is easy to decompose. When heated to high temperature, there will be drastic changes, and it will decompose and release irritating gases.
    Its reaction to organic oxidants is smooth, and the reaction to reducing agents is not intense. It can hold a variety of organic substances and dissolve fat and wax, so it is widely used as a solvent. In organic synthesis, it can be used as an intermediate or a phosphorus source, and can also be used to initiate some polymerization reactions. Its phosphorus atom is in pentavalent, the power supply ability is weak, and it is difficult to react directly with halogens. However, it can complex with some metal salts to form coordination compounds.
    Although it does not fiercely support combustion in case of fire, it can release smoke of phosphorus oxides and carbon oxides when overheated. Although the chemical properties are relatively stable, they begin to change when they encounter strong oxidation or strong reduction conditions. It has no obvious corrosion effect on ordinary metals, but it can be exposed to iron and zinc for a long time, or it can cause micro-rot.
    Soluble in most organic solvents such as alcohols, ethers, and esters, and can also be dissolved in a small amount of water. When exposed to ammonia or amines, it can form amine salts, and the chemical reaction of rattan is relatively warm. It is drug-free, It is commonly used as a flame retardant because it releases phosphoric acid when heated, which can react with combustible materials to form a non-flammable film layer. It can also be used to improve the properties of plastics, increase flexibility and reduce static electricity. Paints, glues, plasticizers and many industrial fields have their traces.
    Review its properties, triethyl phosphate has stable chemical properties, but it should avoid hot topics and strong acids and alkalis, and be careful to coexist with fluorine and chloride. Use its stability, a wide range of processes, and endless uses.
    How is Triethyl Phosphate Stored and Transported?
    Triethyl phosphate is mild in nature, but it is flammable and slightly toxic. The method of storage must be handled with caution. Choose a cool and ventilated place to avoid direct sunlight. The reservoir should be sealed and corrosion-resistant, such as galvanized iron drums or glass containers, and should not be filled with plastic thin containers, for fear of chemical reaction with the container and damage. The reservoir should be kept away from fire and heat sources, and should not be co-located with oxidizing agents, reducing agents, acids, alkalis, etc., to prevent the reaction from turning into flames. The indoor temperature should be maintained at room temperature, so that the temperature difference should not be too large, and the humidity should be moderate to prevent condensation and rot, which will affect its purity and nature.
    When transporting, it must be properly sealed in a special container, and it must not be overloaded to prevent shock, collision and leakage. When loading and unloading, the action should be gentle to prevent friction sparks. The transportation vehicle must have warning signs, and do not mix with food, feed, etc. In case of overturning or leakage during transportation, it should be adsorbed with sand and activated carbon, and destroyed in a centralized manner. It must not be dumped on the spot to avoid polluting the soil and water sources. If there is a hot topic or fire during transportation, it should be treated with dry powder and carbon dioxide fire extinguishers. Do not douse with water to prevent the spread.
    If the skin is accidentally touched during storage or transportation, it should be rinsed with plenty of water as soon as possible. Workers must wear protective gloves, goggles, gas masks and other labor protective gear when operating. Check the tightness of the container every time and dispose of it immediately if leakage is found. Do not be negligent. All storage data and transportation records should be registered in detail for inspection and traceability. When disposing of discarded containers, be sure to clean them thoroughly before they can be reused or destroyed according to regulations.
    Looking at the method of storage and transportation, the most important thing is to be cautious, strictly abide by the system, and take prevention as the foundation to ensure the safety of personnel and the environment.
    Is Triethyl Phosphate Harmful to the Human Body?
    Triethyl phosphate, with chemical properties of stable, commonly used as a solvent and flame retardant, and also found in pesticides. Its physicochemical properties are slightly pungent in nature, and it is suspected of being flammable. When used in fortifications, be especially careful. This substance is slightly volatile, and if the gas escapes outside, people will inhale it for a long time, causing dizziness, fatigue, sore throat, cough and other symptoms. Although the toxicity is lower than that of various phosphide compounds, it should not be ignored. If it comes into contact with the skin, it will cause more tingling and inflammation, and it will become a rash for a long time. Easy to take by mouth, light vomiting and diarrhea, even severe gastrointestinal pain, if ingested in large quantities, it may cause damage to the liver and kidneys, and even endanger life.
    Triethyl phosphate enters the body, is mainly metabolized by the liver, and is excreted with urine. However, some scholars have found that long-term exposure to this may affect the nervous system, causing cognitive impairment or sensory disorders. Studies have also pointed out that although its decomposition product phosphate ion is one of the elements required by the human body, excessive intake will be harmful. If young children or frail people are exposed to it, the impact will be particularly severe, and it may damage their health.
    The state has strict regulations on the salinity of triethyl phosphate for industrial use. Protective equipment must be worn to ensure ventilation, and the dirt should not be dumped at will to prevent environmental damage. Operators should check their bodies every day, and if there is any abnormal omen, they should take a break from work and seek medical treatment. As for food and drinking water, if it is mistakenly mixed in a small amount, it is not enough to cause harm. However, it accumulates over time, and it is worry-free. It cannot be relied on. With its artificial synthesis, it is not born naturally, and it is not easy to encounter in the folk. Only chemical workers and experimenters should take special precautions.
    Although triethyl phosphate is widely used, human health needs to be given priority first. It should not be taken lightly, and it should be well protected to ensure worry-free. Just ask whether this thing can be used safely, but you must be careful and not take it lightly.
    What are the main production methods of Triethyl Phosphate?
    The chemical name of triethyl phosphate is Triethyl Phosphate, and the molecular formula is C H O P. Although there are different methods for preparation in ancient and modern times, the esterification method of phosphoric acid and ethanol as raw materials is the most important in modern technology. The principle is that ethanol and phosphoric acid are esterified under a catalyst and suitable temperature conditions to generate triethyl phosphate and by-product water. For specific operations, anhydrous phosphoric acid is mixed with excess ethanol, placed in an acid-resistant vessel, and heated under constant temperature conditions. Sulfuric acid or p-toluenesulfonic acid is used as a catalyst, and the reaction lasts for several hours. When the system is fully reacted, impurities in the product coexist with unreacted raw materials, fractionation must be carried out, residual heat is taken to evaporate ethanol, followed by water washing, stripping the catalyst and unreacted phosphoric acid, and the remaining solution is re-distilled under reduced pressure to obtain pure triethyl phosphate.
    In addition, there are also those who react with phosphorus oxychloride and ethanol. The formula is: POCl
    and ethanol are slowly mixed under cooling conditions, and an alkaline neutralizing agent is added dropwise. After the reaction is completed, the by-product hydrogen chloride and the remaining impurities are separated. Triethyl phosphate can also be obtained by washing and refining and vacuum fractionation. Although this method is fast-reacting, if the equipment is not good, there is a risk of hydrogen chloride escaping, so it is generally less used for large-scale production.
    In the process, washing and stratification operations are also very important. Decanting each layer of substances and removing non-target components can improve the purity and yield of the product. In today's factories, automated equipment is often used to control temperature and pressure, and the operation is standardized to ensure that the reaction is thorough and safe. The triethyl phosphate produced by it is often used as a solvent, flame retardant and organic synthesis intermediate, and is widely used. In summary, the direct esterification process of phosphoric acid and ethanol is the most commonly used, and its operation is simple, the raw materials are easy and cheap, and the yield is also high, which is especially popular.