Trimethyl Phosphate TMP
| HS Code | 607107 |
| Chemical Formula | C3H9O4P |
| Molar Mass | 140.07 g/mol |
| Appearance | Colorless liquid |
| Odor | Faint, characteristic odor |
| Density | 1.216 g/cm³ at 20 °C |
| Boiling Point | 197 - 198 °C |
| Melting Point | -46.8 °C |
| Solubility In Water | Miscible |
| Flash Point | 107 °C |
| Vapor Pressure | 0.133 kPa at 46.5 °C |
As an accredited Trimethyl Phosphate TMP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaging of Trimethyl Phosphate TMP: Industrial grade uses glass bottles or galvanized iron barrels, the bottle stopper is sealed with rubber pads, and the inner wall of the iron barrel is coated with corrosion-resistant paint; reagent grade is placed in brown narrow-mouth bottles with frosted glass stoppers, wrapped with soft paper and placed in wooden boxes to prevent volatilization and damage. |
| Storage | Store Trimethyl Phosphate TMP in a cool and dry warehouse, away from fire sources and strong acids. Bottles must be stored upright, and iron barrels should not be stacked more than three layers. Open flames are prohibited in the warehouse, and sand is prepared to prevent fire hazards. |
| Shipping | Transport Trimethyl Phosphate TMP in a sealed truck marked with "flammable liquid". Soft materials are placed between barrels to prevent shock. If leaks, cover with sand and do not let them seep into the ground. |
Competitive Trimethyl Phosphate TMP 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
In ancient times, esters were mostly made from animal and plant fats and oils. In modern times, chemical industry has flourished, and the wonderful uses of phosphate esters have been known. Craftsmen have developed Trimethyl Phosphate TMP. At first, it was only used as a laboratory product. After improved technology, it can now be mass-produced as a supplement to organic synthesis.
Product Overview
Trimethyl Phosphate TMP is a colorless transparent liquid with a slightly sweet smell. It is easily soluble in organic solvents and slightly soluble in water. It is slightly volatile and is mostly used in organic synthesis, solvents and plasticizers. It has a relatively active chemical property.
Physical & Chemical Properties
Trimethyl Phosphate TMP has a density close to that of water, a low boiling point, is flammable, and is easily decomposed into toxic gases when heated. It is slightly irritating to the skin and can burn when exposed to open flames. It is flammable.
Technical Specifications & Labeling
The standard for Trimethyl Phosphate TMP is that the purity must be ≥99%, the moisture content must be ≤0.1%, and the full name Trimethyl Phosphate TMP must be written on the label, with physical and chemical properties and safety warnings attached.
Preparation Method
To prepare Trimethyl Phosphate TMP, methanol and phosphorus oxychloride are usually used as raw materials. A binding agent is added to a reactor, and the reaction is stirred at a controlled temperature. It is purified by distillation, and the process is to prevent toxic gas leakage.
Chemical Reactions & Modifications
Trimethyl Phosphate TMP is easily hydrolyzed in strong alkali to generate trimethyl phosphate and methanol; it can be decomposed into phosphorus-containing gas at high temperature, and releases toxic substances when reacting with reducing agents.
Synonyms & Product Names
Trimethyl Phosphate TMP is also known as "trimethyl phosphate", but in trade and experiments, the full name Trimethyl Phosphate TMP must be used to show accuracy.
Safety & Operational Standards
When handling Trimethyl Phosphate TMP, you need to wear a gas mask and rubber gloves, and avoid open flames. If it splashes into the eyes, rinse with clean water and seek medical treatment immediately. After work, wash your hands and change clothes.
Application Area
Trimethyl Phosphate TMP is mostly used as a methylation reagent in the synthesis of medicines and pesticides. It is also a plasticizer and coating solvent. It is a commonly used auxiliary in organic chemicals.
Research & Development
The Artisan Bachelor is exploring the application of Trimethyl Phosphate TMP in the synthesis of new materials, developing low-toxic production processes, and exploring its recycling and reuse methods.
Toxicity Research
Trimethyl Phosphate TMP is moderately toxic. Inhalation or accidental ingestion can damage the central nervous system. Long-term contact can damage the liver and lungs. Therefore, strict protection is required and children should be kept away from it.
Future Prospects
With the development of the organic synthesis industry, the demand for Trimethyl Phosphate TMP is steadily increasing. Its process will become more environmentally friendly, or it may be expanded to the field of electronic chemicals to make full use of it.
Where to Buy Trimethyl Phosphate TMP in China?
As a trusted Trimethyl Phosphate TMP 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 Trimethyl Phosphate TMP supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What details should be paid attention to when preparing Trimethyl Phosphate TMP?
This product is made by using phosphoric acid and methanol as materials, placing them in a copper reactor in a ratio of 1:4, and adding a small amount of aluminum chloride as a catalyst. The reactor is sealed and heated to 80 degrees to react to produce water and Trimethyl Phosphate TMP. Excess methanol is recovered through a condenser and the reaction is continued for three hours. The process is like evaporation, and the temperature must be strictly controlled. If it is too high, the methanol will evaporate too quickly, and if it is too low, the reaction will be incomplete. After the reaction, it is distilled and purified, and the 190-degree fraction is collected to obtain a colorless and transparent liquid with a purity of up to 99%. If the reactor leaks, the yield will be greatly reduced, so the sealing technique is essential, just like sealing the jar when brewing vinegar, and only when there is no leakage can the pure taste be obtained.
What role does Trimethyl Phosphate TMP play in organic synthesis?
This product is a good material for methylation reagents. In drug synthesis, it can convert hydroxyl groups into methoxy groups, such as methylating phenol to anisole, with a yield of 90%. In the dye industry, it can methylate amine compounds, change the color, and make azo dyes brighter. Its reaction conditions are mild, no high temperature and high pressure are required, it is safer than methyl iodide, and it is not easy to explode, so it can be used in both laboratories and industries. In polymer synthesis, it is used as a chain transfer agent to regulate the molecular weight of polymers and make the resin performance more stable. Its methyl transfer ability is moderate and does not harm other functional groups, so it is valued by synthetic chemists.
What are the characteristics of the physical properties of Trimethyl Phosphate TMP?
This product is a colorless liquid with a slight ether fragrance, a boiling point of 190 degrees, a melting point of minus 40 degrees, good fluidity at room temperature, and no worry about crystallization. It is insoluble in water, easily soluble in organic solvents such as ethanol and acetone, and miscible with ether in any proportion. Its density is about 1.21 g/cm3, slightly heavier than water, and it is linear when poured, without wall hanging phenomenon. The refractive index is 1.397, and the transmittance is high. It can be used as an optical instrument cleaning agent to remove oil stains without damaging the lens. The volatility is lower than that of TBP, so it is less likely to be lost during storage. If properly sealed, the annual loss rate does not exceed 1%.
Why is Trimethyl Phosphate TMP suitable as a flame retardant?
This product contains up to 21% phosphorus, and its flame retardant efficiency far exceeds that of general phosphorus flame retardants. When added to polyurethane foam, only 5% is needed to pass the UL94 V-0 test. When burned, it generates a phosphate protective layer to block oxygen and insulate heat. In epoxy resin, it can work synergistically with the curing agent to not only flame retardant but also enhance the cross-linking density, thereby increasing the compressive strength of the material by 10%. It has good compatibility with the resin, no precipitation after curing, and does not affect the appearance of the material. Therefore, it is often used in electronic component packaging to prevent short circuit fire and protect circuit safety.
What are the specifications for the storage and transportation of Trimethyl Phosphate TMP?
This product needs to be stored in brown glass bottles or polyethylene barrels, away from direct sunlight, and prevent decomposition by light. Store in a cool warehouse with a temperature not exceeding 30 degrees, isolated from oxidants and strong acids. Do not transport it in the same vehicle as edible chemicals. The barrel must be labeled "flammable liquid". Handle it with care during loading and unloading to prevent collision and leakage. If it is accidentally spilled, cover it with sand to absorb it. Do not flush it with water to prevent it from seeping into the ground and contaminating the water source. Its steam is slightly irritating, so you need to wear a mask when operating it. Therefore, you need to be careful when storing and transporting it, just like protecting a treasure, to prevent damage and harm.
