1,3-Dimethyl-2-imidazolidinone CAS 80-73-9
1,3-Dimethyl-2-imidazolidinone, also known as dimethylethylene urea, abbreviated as 1,3-dimethyl-2-imidazolidinone, is a polar solvent with high boiling point, high flash point, low melting point, extremely low toxicity, extremely low pollution and strong solubility. It has extremely strong stability and is resistant to strong acids, strong alkalis, water, light and oxygen.
| Item | Result |
| Appearance | Colorless and transparent liquid |
| Color | ≤25 |
| Purity by GC (%) | ≥99.5 |
| Water (%) | ≤0.1 |
| Refractive index(25℃) | 1.468 -1.473 |
| PH (10% water) | 7.0-8.0 |
1.1,3-Dimethyl-2-imidazolidinone is used to study functionalized hydrosilane dibasic transition metal complexes stabilized by photochemical formation of aryl silanes.
2. Aprotic dipolar solvent, 1,3-dimethyl-2-imidazolidinone is often used as a carcinogen HMPA substitute.
3. Reaction solvent
Due to its excellent thermal and chemical stability, DMI has solubility in inorganic, organic compounds and various resins, and its catalytic effect as a non-protonic polar solvent makes it a particularly effective reaction solvent. . Using DMI, the yield can be improved and the side reactions can be effectively controlled while shortening the reaction time.
DMI can effectively promote various nucleophilic substitution reactions, such as the synthesis of phenyl ether derivatives, amino compounds and fluorobenzene derivatives. Its high dielectric constant and cationic solvation can catalyze anionic nucleophilic reactions. These synthetic products are used as intermediates for the synthesis of pesticides, drugs, dyes and high-performance resin monomers.
4. Petroleum products
DMI has a high boiling point and high thermal stability, and is not easy to form azeotropes with other substances. Therefore, it can be used in many industrial processes such as liquid-liquid extraction, countercurrent distribution, extractive distillation and countercurrent washing. DMI is a good BTX (benzene, toluene and xylene) extractant because it dissolves aromatic compounds and unsaturated hydrocarbons, but does not dissolve paraffin.
5. Polymer reaction solvent
DMI is the only solvent used to produce heat-resistant thermoplastics. It is also effectively used as a solvent for various polymer synthesis processes and a detergent for polymerization and plastic molding. In the production of polyamide and polyimide resins, DMI accelerates the formation of amide and imine groups to obtain high molecular weight polymers, and the resulting solution is suitable for solution spinning to obtain high-temperature resistant polyimide fibers.
In the production of polyphenylene sulfide resin (PPS), electronic materials with very small amounts of organic impurities can be obtained by DMI. In the production of polyphenylene ether sulfone resin, DMI can effectively control the occurrence of side reactions and obtain high-quality polymer products. When polyimide resin and polysulfone resin are formed into films and polyether ketone resin films are stretched, treatment with DMI can make the films more uniform.
6. Photolithography process stripper
Due to its low viscosity and high dielectric constant, DMI can be used as an electrolyte solvent for high-performance lithium batteries. In addition, it has strong permeability, high boiling point and high temperature resistance, and can also be used as a stripper for silicon wafer photoresist. Its fast stripping and non-corrosive properties greatly simplify the stripping process and speed up the productivity of chip cutting.
7. Detergent
DMI is added to a mixture of surfactants, alkalis, alcohols and polyoxyethylene alkyl ethers to obtain a powerful detergent. Since DMI is very easy to dissolve dirt, it can also be used to prepare efficient cleaning solutions for cleaning glass and metal.
8. Dyes and pigments
Inks made by mixing DMI with solvent components and dyes and pigments can be printed in contrast, and the image is clear.
9. Surface treatment agent
DMI can be used as a surface treatment agent to improve the bonding strength of ABS, polyimide, PPS, Teflon and other materials with epoxy resin adhesives.
200kg/drum
1,3-Dimethyl-2-imidazolidinone CAS 80-73-9
1,3-Dimethyl-2-imidazolidinone CAS 80-73-9
