What is acetonitrile?
Acetonitrile (75-05-8) is a liquid with an etherlike odor. It is a highly polar, volatile organic compound used as a solvent in many different industrial applications.
Acetonitrile Properties
Acetonitrile, with the chemical formula CH₃CN, is a colorless, transparent liquid solvent. It exhibits strong polarity and is readily soluble in water and numerous organic solvents such as ethanol and chloroform. Its relatively low boiling point of 81°C facilitates distillation and recovery. Acetonitrile also possesses good stability, making it commonly used as a reaction solvent.

Acetonitrile (CAS 75-05-8) Physical Properties
| Property | Value |
|---|---|
| Molecular Weight | 41.05 g/mol |
| Boiling Point | 81.60 °C |
| Freezing Point | −43.8 °C |
| Vapor Pressure | 88.8 Torr at 25 °C |
| Density (20 °C) | 0.7822 g/mL (6.527 lb/gal) |
| Density (25 °C) | 0.7766 g/mL (6.481 lb/gal) |
| Refractive Index | 1.3441 at 20 °C |
| Dielectric Constant | 37.5 at 20 °C |
| Dipole Moment | 3.44 D at 20 °C |
| Solvent Group | 6 |
| Polarity Index (P′) | 5.8 |
| Eluotropic Value (Alumina) | 0.65 |
| Eluotropic Value (Octadecylsilane, C18) | 3.1 |
| Eluotropic Value (Silica) | 0.52 |
| Viscosity | 0.38 cP at 15 °C |
| Surface Tension | 19.10 dyn/cm at 20 °C |
| Solubility in Water | Miscible in all proportions |
What are the uses of ACN chemical?
It is used in the production of fibers, rubbers, and resins. It is replacing acrylonitrile, an important starting material in the manufacture of fabrics, plastics, and synthetic rubber. It is used as a chemical intermediate in pesticide, perfume and pharmaceutical manufacturing.
Acetonitrile (CAS 75-05-8):Safety and Health Hazards
Small amounts of acetonitrile are relatively toxic, but in large doses, it can be converted into hydrogen cyanide, which is toxic. Since it takes time for the body to metabolize acetonitrile to cyanide, its toxic effects are delayed. The eyes, throat, lungs, and nose can become irritated.
Its long-term effects are thyroid enlargement, headaches, numbness, lack of appetite, dizziness, weakness, and tremors. Scientists observe animal reproductive problems, including birth defects and low birth weights. Acetonitrile can affect the liver, lungs, central nervous system, and kidneys for a long time.
Why choose Gneebio?
Gneebio, with decades of experience in research, manufacturing, and marketing of organic chemicals, is one of the leading exporters of chemical products in Henan, China. Over the years, we have been committed to the chemical industries of intermediates, plastic additives, water treatment chemicals and fungicides, and daily chemicals.
Advantages
1) Small batch shipment and sub-packaging are available.
2). Provide COA, MSDS, Health Certificate, and Origin Certificate.
3) Quality first, service best.
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