Acetonitrile: An Efficient Solvent and Reagent for Organic Synthesis-1
Major Application Fields
In chemical analysis, acetonitrile is a commonly used solvent for high-performance liquid chromatography (HPLC) and gas chromatography (GC) analysis. It has good solubility and low viscosity, effectively dissolving a variety of organic and inorganic compounds to provide clear analytical results. Acetonitrile is also used to prepare standard solutions and calibration fluids, ensuring the accuracy and reliability of analysis.
In organic synthesis, acetonitrile is an important solvent and intermediate. It can dissolve a variety of organic compounds, providing a stable environment for chemical reactions. For example, in the synthesis of certain pharmaceutical intermediates and fragrance compounds, acetonitrile can act as a solvent to promote the reaction. Additionally, acetonitrile can participate in certain chemical reactions to generate compounds with specific functions. For example, acetonitrile can undergo nucleophilic substitution reactions with its cyano group to produce corresponding amine or alcohol compounds.
In the pharmaceutical industry, acetonitrile is widely used in drug synthesis and purification processes. It can dissolve a variety of drug precursors and intermediates, facilitating efficient chemical reactions. For example, in the synthesis of certain antibiotics and cardiovascular drugs, acetonitrile can act as a solvent to increase reaction rates and yields. Additionally, acetonitrile can be used for drug crystallization and purification to ensure drug purity and quality.
In the fragrance and cosmetics industry, acetonitrile is used for the synthesis and purification of fragrance compounds. It can be used to extract natural fragrance components, such as essential oils from plants. Additionally, acetonitrile can be used to synthesize fragrance compounds with unique odors for perfumes and cosmetics.
In the electronics industry, acetonitrile is used as a cleaning agent and solvent. It can effectively remove residues and impurities from the surface of electronic components, ensuring the cleanliness and performance of electronic components. For example, in semiconductor manufacturing, acetonitrile can be used to clean the surface of wafers, removing photoresist residues and other impurities.
Despite its wide range of applications, acetonitrile is volatile and toxic, and its use and storage require strict safety precautions. Acetonitrile easily evaporates in the air, so it should be used in a well-ventilated environment. Additionally, solutions of acetonitrile are somewhat toxic, and appropriate protective equipment should be worn during use to avoid contact with skin and eyes. In industrial production, the use of acetonitrile typically occurs in closed systems to minimize environmental impact.
Specifications
| Product Name | Acetonitrile | |||||||||
| Chemical Formula | C2H3N | |||||||||
| Molecular Weight | 41.05 g/mol | |||||||||
| Appearance | Colourless transparent liquid | |||||||||
| Melting Point | -45.7°C | |||||||||
| Boiling Point | 81.6°C | |||||||||
| Density | 0.003 g/cm³ | |||||||||
| CAS NO | 75-05-8 | |||||||||
| HS Code | 2926909090 | |||||||||
| EINECS NO | 200-835-2 | |||||||||
| Application | Used in organic synthesis, extraction, pharmaceutical intermediates, and chromatographic analysis. | |||||||||
Quality Control Sheet
| Product Name | Acetonitrile | ||||||
| ITEM | STANDARD（Superior quality） | TEST VALUE（%） | |||||
| Chromaticity/HaZen units | 10 | 10 | |||||
| Density | 0.5 | 0.003 g/cm³ | |||||
| Purity/%≥ | 99.9 | 99.94 | |||||
| Moisture/%≤ | 0.030 | 0.029 | |||||
| Acetone/%≤ | 25 | ＜5 | |||||
| Acrylonitrile/%≤ | 25 | ＜5 | |||||
| Ammonia/%≤ | 6 | 1.1 | |||||
| Acidity (as acetic acid)/≤ | 50 | 1.8 | |||||
| Copper/(mg/kg)≤ | 0.5 | 0.001 | |||||
| Iron/(mg/kg)≤ | 0.5 | 0.003 g/cm³ | |||||
| Boiling range (at 0.10133 MPa) °C | 81.0-82.0 | 81.6-82.0 | |||||
In summary
In summary, acetonitrile, as an important organic chemical raw material and solvent, plays a key role in multiple industries. It not only enhances the efficiency and yield of chemical reactions but also supports the development of modern industry. With continuous technological advancements, the application prospects for acetonitrile will be even broader.