Dimethyl Methylphosphonate

Dimethyl Methylphosphonate

    Specifications
    HS Code 290531
    Chemical Formula C3H9O3P
    Molar Mass 124.075 g/mol
    Appearance Colorless liquid
    Odor Faint, pleasant odor
    Density 1.069 g/cm³ at 20 °C
    Boiling Point 181 - 183 °C
    Melting Point -75 °C
    Solubility In Water Miscible
    Vapor Pressure 0.31 hPa at 20 °C
    Flash Point 79 °C
    Refractive Index 1.4023 at 20 °C

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

    Packing & Storage
    Packing Dimethyl Methylphosphonate in 5 - liter containers, securely packaged for safe transport.
    Storage Dimethyl Methylphosphonate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and oxidizing agents. Store in tightly sealed containers to prevent leakage. It's crucial to store this chemical separately from incompatible substances to avoid potential reactions that could lead to safety hazards.
    Shipping Dimethyl Methylphosphonate is shipped in accordance with strict hazardous materials regulations. It's typically in specialized containers, ensuring secure transit to prevent spills and exposure during transportation.
    Free Quote

    Competitive Dimethyl Methylphosphonate 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

    Dimethyl Methylphosphonate Dimethyl Methylphosphonate
    General Information
    Historical Development
    At the beginning of the twentieth century, science became increasingly intelligent, and chemical research flourished. Dimethyl Methylphosphonate, translated as dimethyl methylphosphonate, began to appear in the works of scholars in Western countries. Its properties are transparent liquids, slightly odorous, and have a wide range of uses. At first, it was known as a reagent, but later, due to its unique properties, it was gradually used in organic synthesis, flame retardant materials and chemical industries. In the 1960s, due to the rise of the Cold War, European and American countries studied it particularly well, both as an intermediate and for special purposes. However, its potential harm is gradually becoming known, and international norms are becoming stricter. Since the 21st century, detection methods have become more refined, more widely used, and environmental protection standards have become increasingly severe. Countries have promoted independent innovation with the aim of developing green chemical industry, so the preparation and utilization of dimethyl methylphosphonate have become more scientific and reasonable. Therefore, since its discovery, it has undergone evolution and has become more and more perfect with the pace of the times.
    Product Overview
    Dimethylphosphate is one of the organic phosphorus compounds. The chemical formula is C3H9O3P. It is a colorless and transparent liquid with a weak specific odor. It is stable and soluble in water and various organic solvents. This product is mostly used as a pesticide, flame retardant and organic synthesis intermediate, and is widely used in synthetic chemistry, materials science and national defense industry. It is easy to prepare, the raw materials are economical, the quality is stable, and it is easy to store and transport. It can withstand high temperature, and the decomposition products are non-toxic, and the safety performance is excellent. Chemical companies have a strong demand for it, which can be used to prepare a variety of phosphorus flame retardant materials, and can also be used in medicine and other fields. Its quality purity and moisture content requirements are very high, and it needs to be sealed and stored to prevent moisture and deterioration.
    Physical & Chemical Properties
    This substance is called dimethyl methylphosphonate, and its form is a colorless liquid with a slight odor. Its boiling point is about 181 degrees Celsius, and its melting point is between -50 and -48 degrees Celsius. The density is about 1.145 grams per cubic centimeter, at 20 degrees Celsius. Low solubility in water, but can be miscible with alcohols, ethers and other organic solvents. The properties are stable, and it decomposes in case of open flames and hot topics, releasing irritating phosphorus oxide fumes. The refractive index is about 1.384, at 20 degrees Celsius. The vapor pressure is low, and it is not easy to volatilize at room temperature. Its molecular formula is C3H9O3P, and its molecular weight is 124.08. It has mild chemical properties. It does not spontaneously ignite or explode at room temperature and pressure. It interacts with strong oxidants, strong acids, or reacts violently. It is used in organic synthesis, flame retardants and other special fields.
    Technical Specifications & Labeling
    Dimethyl Methylphosphonate, chemical formula is C3H9O3P, molecular weight 124.08. Its properties are colorless and transparent liquid, slightly aromatic, boiling point 181-183 degrees Celsius, density 1.145-1.147 grams per cubic centimeter, refractive index 1.385-1.387. Soluble in water and organic solvents such as alcohols and ethers. The purity of the product is usually above 99%, and the water content is very small, not more than 0.5%. The packaging should be packaged in iron drums with a net weight of 250 kg, sealed and stored in a cool and dry place. The label must clearly indicate the product name, batch number, net weight, date of production and manufacturer. Storage and transportation should be protected from exposure to the sun, moisture and moisture, and should not coexist with oxidants. This product is used as an intermediate in organic synthesis and can also be used as a flame retardant. Safety must abide by the regulations of chemical management, do not import and breathe steam.
    Preparation Method
    The preparation of dimethyl methylphosphonate, trimethylphosphorus and methanol as raw materials, in ethanol solvent, often hydrogen chloride or strong acid as catalyst. At first, trimethylphosphorus and methanol are mixed, catalyzed by adding acid, stirred and heated to form an intermediate, and then etherification reaction, methane is released, and then the main product is formed. The catalytic mechanism is that the acid activates the hydroxyl group to promote the nucleophilic substitution reaction, and the methyl transfer on the phosphorus atom is obtained to obtain dimethyl ester. After the reaction is completed, it is purified by vacuum distillation to remove by-product impurities. Its process is convenient, the raw materials are easy to obtain, and the yield is quite high. It is widely used in many fields such as organic synthesis and flame retardants.
    Chemical Reactions & Modifications
    Dimethylmethylmethylphosphonate, molecular formula C3H9O3P, has stable properties. When it encounters strong bases and strong acids, it is easy to hydrolyze esters to form methanol and methylphosphonic acid. It can react with amines, alcohols, phenols, etc. at high temperatures or in catalysts to form polyphosphonate derivatives. If halogenated hydrocarbons participate, it is prone to alkylation modification and improve its molecular polarity. And its phosphine skeleton is combined with organic functional groups, which can not only introduce heat resistance, flame retardancy and other properties, but also can be used as a polymer material auxiliary agent. Or copolymerize with isocyanates and epoxy compounds to enhance its structural strength and chemical stability. If silicone reacts, its surface activity and film-forming properties increase. Therefore, dimethylmethylphosphonate is useful in the field of material modification and organic synthesis, and has many chemical reaction pathways, which is the cornerstone of multiple innovations.
    Synonyms & Product Names
    Dimethyl methylphosphonate, a wonderful chemical product, known as Dimethyl Methylphosphonate in the world, also known as DMMP for short. Many synonyms are based on its structure. There are those called dimethyl methylphosphonate and those called dimethyl phosphate. In Western Regions equipment, it is either marked as Methylphosphonic acid dimethyl ester, or it is recorded as Phosphonic acid, methyl-, dimethyl ester, or its abbreviation DMMP. Before this item, there are names mixed with products, such as Sigma-Aldrich, Alfa Aesar, TCI and other companies, all of which are planted with their own logos, or marked with numbers such as "D126608", "A13186", so that buyers can easily identify. On the occasion of foreign trade and commerce, it is also seen that the CAS number "756-79-6" is used for its international identification, and the market trade is based on it. Although the names of the synonyms are different, they actually point to one, and they are all basic raw materials for many purposes such as scientific research, industry and protection.
    Safety & Operational Standards
    Dimethyl Methylphosphonate is an essential chemical medicine. It is a transparent liquid with colorless and slightly odorous properties. It is used in organic synthesis and is also found in flame retardant and additive matters. However, its nature is toxic, flammable in case of fire, and changes in case of heat, so when handling this thing, you must be cautious and careful. When operating, you should clearly detect its hazards, wear tight protection, wear chemical-resistant gloves, wear anti-corrosion clothing, eyepieces to protect your eyes, masks to prevent inhalation, and never come into contact with the skin. If there is any contamination, you must rinse the affected area with water immediately, and seek medical attention as soon as possible. When opening the bottle and dumping, it is appropriate to place it in a ventilated place, do not approach an open fire, and strictly prohibit relying on heat sources to avoid volatile fire. Store in a cool and dry place, away from acids, alkalis and oxidants. Containers should have the ability to seal and be affixed with clear warnings to prevent misuse. Measurement and deployment should be done according to the amount. Do not leak and dispose of beyond the authority. It should be a circular insurance system. Do not dump and clog the water at will. Dispose of residues and pollutants, and follow professional recovery and incineration methods. Daily inspection of the device for leakage. If any abnormalities are found, they should be reported immediately and disposed of according to regulations. There should be no concealment and delay. In case of fire, sand and carbon dioxide should be used to extinguish the fire, and water should not be used. Operators must be professionally trained and aware of chemical hazards and emergency regulations. All things are cautious to be safe. Meticulous or negligent, it will harm yourself and others. After the matter, you should clean your hands and face, and do not carry traces into meals. Be careful and careful, and you will be safe.
    Application Area
    Dimethylmethylphosphonate has stable properties, soluble water and various organic solvents. It has a wide range of uses and is the first intermediate in organic synthesis. It can be used in the preparation of phosphonic acid pesticides and flame retardants. And because of its special molecular structure, it is often used in the modification of polymer materials, which can endow products with flame retardant, insulation and other characteristics. In rocket propellants and aviation industries, it is often used as an additive for polymer-based composites to increase its heat resistance and chemical resistance. In addition, it is also used in chemical analysis, surfactants and lubricating materials and other fields. In laboratories, it is often used as a standard for quantitative analysis of phosphorus elements, or as a solvent for gas chromatography. Recently incorporated into environmental materials, used in the production of adsorbents to purify air and sewage. From this perspective, dimethylmethylphosphonate has a wide range of uses and is an important place in industry and scientific research.
    Research & Development
    Dimethyl Methylphosphonate is the essence of organic phosphorus. Since Western scholars pioneered it, later generations of craftsmen have competed to study it, and it has become what it is today. It is stable in nature and reacts freely, and is widely used in fields such as medicine, materials, and flame retardancy. Scientists have deeply investigated its mechanism and carefully explored the mystery of its structure and properties. In the laboratory, it is dissolved in organic solvents and participates in various types of synthesis. The R & D team uses state-of-the-art instruments to investigate various reaction conditions, adjust catalysts and temperatures, and improve conversion rates. More ambitious people pursue green processes, reduce waste by-products, and achieve environmental friendliness. In recent years, with the rise of nanotechnology, scholars have tried it in smart materials and found new applications. From this perspective, the research and development of Dimethyl Methylphosphonate not only promotes the progress of new chemical technologies, but also opens the door to future multi-application.
    Toxicity Research
    Dimethyl Methylphosphonate, chemical formula C3H9O3P, properties Clear liquid, slightly odorous, dissolved in water. After its entry into the body, it is easy to interact with the esterase of biological bodies, or into the active poison of organic phosphorus. The experimental animals such as rats and rabbits were used as experimental animals, and they were divided into different doses to observe their effects on the circulation, breath, and nerves. They were seen as salivation, muscle weakness, convulsions, etc., and the symptoms of poisoning were frequent. Continued exposure to high doses can cause death, mainly involving the inhibition of the respiratory center. Gas volatilization can also cause harm through the respiratory tract. Acute toxicity test, LD50 is about 500 to 1,000 milligrams per kilogram of body weight. Minor exposure can also cause fluctuations in biochemical indicators, and long-term micro-exposure can still cause liver and kidney damage. It is to operate Dimethyl Methylphosphonate, and extreme care should be taken to prevent it from entering the body by mistake. In particular, the management of the drug must be strictly regulated.
    Future Prospects
    Dimethyl Methylphosphonate has excellent materials and stable properties. It is widely used in the fields of medicine, agrochemistry and flame retardancy. Looking at its potential in new material research and development, energy storage and environmental protection, the future prospects are quite promising. With the increasing advancement of science and technology, the synthesis process of this product may be optimized, the cost will decrease, and its popularity will rise. And because of the growing global demand for green, low-carbon and safe environmental protection, Dimethyl Methylphosphonate has an unlimited future in functional materials and clean energy. Scholars at home and abroad are participating in research, and the industrial chain is increasingly perfect, broadening the application boundary, or seeing innovative utilization. If policy support and normative guidance are obtained, its quality will be improved, its market will be expanded, and the related industries will be promoted to make coordinated progress and benefit the society.
    Where to Buy Dimethyl Methylphosphonate in China?
    As a trusted Dimethyl Methylphosphonate 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 Dimethyl Methylphosphonate 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 Dimethyl Methylphosphonate?
    Dimethylmethyl phosphonate is one of the organic phosphine compounds. It has colorless and transparent properties, light odor, good stability, and is soluble in water and various organic solvents. Its preparation method is mostly obtained by esterification of methyl phosphonic acid and methanol, and the process is simple and the yield is considerable. It has a wide range of uses and is described as follows:
    First, it is used as an intermediate for organic synthesis. Dimethylmethyl phosphonate contains both phosphorus and methyl in its molecular structure, which can be used as a cornerstone for the synthesis of more complex organic phosphorus compounds. In the pharmaceutical, pesticide, dye and flame retardant industries, it is often used as an important raw material to access target molecules and improve their properties.
    Second, flame retardant raw materials. Its phosphorus element has high flame retardant properties, and is made into an additive for plastics, coatings, rubber and other materials, which can effectively slow down the combustion process and increase fire resistance. Especially favored by places with high flame retardant requirements such as aerospace devices and building decoration, it is widely helpful to ensure safety.
    Third, polymer additives. Among plastic polymer materials, dimethylphosphonate can improve mechanical strength and thermal stability, especially used in the manufacturing of polymers such as polyurethane and polyethylene. With its addition, the product can be made both tough and durable, so the market demand is increasing.
    Fourth, it is used in gas chromatography analysis of stationary fluids. Due to its stable physical properties and moderate volatility, it has excellent performance when separating a variety of organic small molecule components. It is often the preferred stationary phase in scientific experiments, environmental monitoring and other analytical fields.
    Fifth, military police-related fields. Dimethylmethylphosphonate can be used as an esterification raw material for some special toxic organic phosphorus chemicals, and can also be found in the development of some protective agents and detection reagents. However, this use is strictly controlled and cannot be used without license.
    In addition, it is easy to prepare, safe storage and transportation, low toxicity, and the scope of use is expanding day by day. However, when handling, it is necessary to prevent contact with the skin and avoid breathing. Adhere to process specifications and can be widely developed and utilized. However, it involves militarily sensitive fields, so many countries control it and require legal compliance. In summary, the main uses of dimethylmethylphosphonate cover synthetic intermediates, flame retardants, chromatographic reagents and controlled special fields, and it is an indispensable important chemical in today's chemical industry.
    What are the chemical properties of Dimethyl Methylphosphonate?
    Dimethylmethylphosphonate, referred to as DMMP, is an organic phosphorus compound with the molecular formula C3H9O3P. Its properties are colorless and transparent liquid with a slightly odorous smell. Its chemical properties are quite unique. From the beginning of its molecular structure, it is known that the existence of phosphonate groups makes it have good stability. It is not easy to decompose at room temperature, but it can be hydrolyzed at high temperature or in contact with strong acids and bases. In acidic media, DMMP is easily hydrolyzed to methyl phosphonic acid and methanol; in alkaline environments, there is a similar reaction, but the rate is more rapid. During the hydrolysis process, the pentavalent state of phosphorus atoms can form phosphonic acid derivatives.
    In terms of oxidation reaction, DMMP can be oxidized by strong oxidants such as potassium permanganate, hydrogen peroxide, etc., to form phosphate esters and related oxygenated compounds, so it is mostly used to simulate the degradation test of neurotoxic agents. It can also participate in nucleophilic substitution reactions, and its ester groups can be attacked by nucleophiles to produce organophosphorus compounds with different structures. If it is in suitable conditions with alcohols or amines, it can also undergo exchange reactions to synthesize new phosphonates.
    DMMP has both organic and inorganic properties. Because the phosphorus atoms in the molecule are positively charged, they can complex with metal ions to form coordination compounds. Its polarity is strong, and it is soluble in water and most organic solvents, which is conducive to the uniform progress of chemical reactions. In addition, DMMP is relatively stable to heat, has a high boiling point, decomposes in case of open flame and emits toxic smoke, which is toxic. Mixing with air can form flammable mixtures, and when heated or burned, carbon monoxide, carbon dioxide, and phosphorus oxides are generated, which is harmful to the environment.
    In summary, the chemical properties of dimethylphosphonates mainly include hydrolysis, oxidation, nucleophilic substitution, and coordination reactions, etc., which are both stable and active. Its complex properties are suitable for a variety of organophosphorus chemistry and environmental safety studies. It is also one of the nerve agent simulators. It is widely used and should be handled with caution.
    What are the storage conditions for Dimethyl Methylphosphonate?
    Dimethylmethylphosphonate, which is flammable and slightly toxic, is often used in organic synthesis and as a chemical reagent. If you want to store it, you should think deeply about it and be careful about the method. Cover this material and water, oxidizing agents and strong alkali react violently, storage is slightly careless, or cause drastic changes, especially beware of fire sources and bright light.
    When storing, use a closed vessel to resist moisture erosion. Glass, polyethylene or polypropylene bottles should be used, and do not use metal utensils to hold them. The place where it is placed should be protected from heat, light, and fire. The temperature should be at room temperature, and it should not be exposed to high temperatures or too cold to prevent crystallization or failure. The storage room should be well ventilated and moderately humid to prevent the accumulation of air, and there should be no strong oxidants, strong alkalis, etc. in the same room. Do not be in the same place as food, feed, and drinking water. Special warehouse counters must be set up with obvious signs.
    Its handling should also be careful. The container is well opened and closed, and it should not be dumped and hit. If there is any leakage, collect it with adsorption material as soon as possible, and do not let it flow into the sewer and the environment. Operators should wear gloves, protective glasses, and gas masks to ensure their health.
    If stored for a long time, it can also be covered with inert gas, such as nitrogen, to prevent it from reacting with moisture in the air. All stored records must be documented in detail and closely supervised. In case of fire, dry powder and carbon dioxide fire extinguishers should be used for rescue, and water should not be used.
    In short, the storage of dimethylmethylphosphonate should be kept airtight, moisture-proof, heat-proof, light-proof, fire-proof, and strong oxidant and alkali isolation. In addition, frequent inspection of utensils and express signs can ensure the safety of the agent and the operator is safe.
    Is Dimethyl Methylphosphonate a Toxic or Safety Risk?
    Dimethyl methylphosphonate, also known as Dimethyl Methylphosphonate, has a slight odor. The ancients had clouds, but it was also poisonous, so be careful. Today, its properties are considered flammable, including phosphorides, fire contacts, or high temperatures, which are flammable and toxic, such as carbon monoxide, which contains phosphorus. This substance is widely used in the synthesis of laboratories and workplaces, and has the use of flame retardant additives. However, its safety cannot be ignored.
    If people sit on it, or absorb it on the skin, or inhale it and steam it, it can cause mental inhibition, pain, dizziness, heart, weakness, cough, sore throat, etc. Exposure to a large amount may cause respiratory distress, serious liver damage, and may inhibit esterase activity. Its toxicity is low, but long-term exposure or high exposure can also reduce the amount of phosphorus. Due to the presence of phosphorus, it can reduce the active phase of the body. If the skin is contaminated, it can cause damage, irritation, eye damage, and can also cause pain and damage.
    It does not decompose quickly in nature, and it involves environmental leakage. It is also harmful to water and health. Operating conditions, it is necessary to guard against clothing, gloves, and wearing eyes. It is advisable to use opaque sealed containers to prevent fire sources and high temperatures. The equipment should be properly handled in accordance with laws and local laws, and no accidental discharge should be allowed.
    In other words, this material is toxic, and safety cannot be ignored. If you want to use it, you should be careful and abide by the prevention. If there is any leakage, you will be afraid of creating patients. Be careful and be careful, and you can protect it. In this way, it is in line with the law of heaven and the law of humanity.
    What is the main production method of Dimethyl Methylphosphonate?
    Dimethylmethylphosphonate, chemical formula (C3H9O3P), is an ester derived from methylphosphonic acid. It is commonly used as a colorless liquid with stable properties and can be used in organic synthesis and flame retardants. There are various preparation methods, and the synthesis method is the most commonly used dimethyl methylphosphonate method. The process is mature and the yield is very good.
    The preparation method is first made of trimethyl phosphite with methanol and formaldehyde as raw materials, or by esterification of methylphosphonic acid and methanol. Today, one of the more popular methods is to react with trimethyl phosphite. The specific steps are as follows: first take trimethyl phosphite and place it in an appropriate reactor, slowly add excess methanol, and add an appropriate amount of acidic catalyst, such as concentrated sulfuric acid or p-toluenesulfonic acid, at a moderate temperature (usually 50 to 80 degrees Celsius), stir the reaction for several hours. Trimethyl phosphite and methanol are catalyzed to generate dimethyl methylphosphonate and by-product water.
    The reaction formula is:
    \ [ (CH_3O) _3P + CH_3OH + HCHO\ longrightarrow (CH_3O) _2P (O) CH_3 + H_2O\]
    After the reaction is terminated, the crude product is obtained, which is mixed with impurities. It needs to be stratified, extracted and rectified to remove unreacted raw materials and by-products. Pure dimethylphosphonate can be obtained by common vacuum distillation, which is transparent like water and has a slightly different odor.
    In addition, there are methods such as directly interacting methylphosphonic acid with methanol or reacting phosphorus chloride with methanol, but the process is complicated and the effect is not as good as the previous methods. If chloromethane and dimethyl methylphosphonate are heated in a closed reactor, the desired ester can also be generated, which also needs to be refined later.
    In short, the reaction of trimethyl phosphite and methanol under an acidic catalyst is the mainstream method for preparing dimethyl methylphosphonate. The process is simple, the raw materials are easy to obtain, and the industrial production is based on this. This method is properly operated, has a lot of income, and is widely recommended for use in the process industry. In fact, it is the best choice for preparation.