Acetonitrile
Classification:
Product Description
Specifications

| chinese alias | methyl cyanide |
|---|---|
| English Name | Acetoniprile |
| Molecular formula | C2H3N |
| molecular weight | 41.05 |
| Relative density (water = 1) | 0.79 |
| Melting Point | -45.7 |
| Boiling Point | 81.1 |
| Solubility | Miscible with water, soluble in most organic solvents such as alcohol |
| Vapor pressure | 13,33(27 ℃) |
| Flash Point | 6 |
| Appearance and Character | Colorless liquid with pungent odor |
| CAS Registry Number | 75-05-8 |
Basic information
Also known as methyl cyanide, colorless liquid, highly volatile, has a special smell similar to ether, has excellent solvent properties, can dissolve a variety of organic, inorganic and gaseous substances. Has certain toxicity, and water and alcohol infinite mutual solubility. Acetonitrile can produce typical nitrile reactions and is used to prepare many typical nitrogen-containing compounds, which is an important organic intermediate.
Application areas
Also known as methyl cyanide, colorless liquid, highly volatile, has a special smell similar to ether, has excellent solvent properties, can dissolve a variety of organic, inorganic and gaseous substances. Has certain toxicity, and water and alcohol infinite mutual solubility. Acetonitrile can produce typical nitrile reactions and is used to prepare many typical nitrogen-containing compounds, which is an important organic intermediate.
Packaging, transportation and safety
1, Chemical Analysis and Instrumental Analysis
Acetonitrile has recently been used as an organic modifier and solvent for thin layer chromatography, paper chromatography, spectroscopy and polarography. Since high-purity acetonitrile does not absorb ultraviolet light at 200nm to 400nm, one application being developed is as a solvent for high-performance liquid chromatography HPLC, which can achieve analytical sensitivity as high as 10-9.
2. Solvent for hydrocarbon extraction and separation
Acetonitrile is a widely used solvent, mainly as the solvent of extractive distillation, separation of butadiene from C4 hydrocarbons. Acetonitrile is also used for the separation of other hydrocarbons, such as propylene, isoprene and methylacetylene from hydrocarbon fractions. Acetonitrile is also used for some special separation, such as extraction and separation of fatty acids from vegetable oil and cod liver oil, so that the treated oil is light, pure, and the smell is improved, while the vitamin content is unchanged. In the pharmaceutical, pesticide, textile, plastics sector, also widely used as solvent acetonitrile.
3. Synthesis of intermediates for pharmaceuticals and pesticides
Acetonitrile can be used in the synthesis of a variety of pharmaceutical and pesticide intermediates. In medicine, it is used to synthesize a series of important drug intermediates such as vitamin B1, metronidazole, ethambutol, triamterene, adenine and difeta cough. In pesticide, it is used to synthesize pesticide intermediates such as pyrethroid insecticides and acetamidine.
4. Semiconductor cleaning agent
Acetonitrile is a polar organic solvent, which has good solubility for grease, inorganic salt, organic matter and polymer compound. It can clean the grease, wax, fingerprint, corrosive agent and flux residue on the silicon wafer. Therefore, high purity acetonitrile can be used as a semiconductor cleaning agent.
5 Other applications
In addition to the above-mentioned applications, acetonitrile can also be used as a raw material for organic synthesis, a catalyst or a component of a transition metal complex catalyst. In addition, acetonitrile is also used in textile dyeing and coating formulations, and it is also an effective stabilizer of chlorinated solvents.