Acetonitrile, often abbreviated MeCN (methyl cyanide), is the chemical compound with the formula CH 3CN and structure H 3C−C≡N. This colourless liquid is the simplest organic nitrile (hydrogen cyanide is a simpler nitrile, but the cyanide anion is not classed as organic).
What is methyl cyanide (cas 75 05 8)?
Acetonitrile (methyl cyanide) is an organic solvent characterized by its non-flammability and low toxicity. It has a distinctive sweet smell, colorless liquid appearance, and high boiling point. It is widely used as a chemical intermediate in the production of pharmaceuticals, agrochemicals, dyes, plastics, and other materials.
Methyl cyanide (cas 75 05 8) Chemical Properties
|
Properties |
|
|
Chemical formula |
C2H3N |
|
Molar mass |
41.053 g·mol−1 |
|
Appearance |
Colorless liquid |
|
Odor |
Faint, distinct, fruity |
|
Density |
0.786 g/cm3 at 25°C |
|
Melting point |
−46 to −44 °C; −51 to −47 °F; 227 to 229 K |
|
Boiling point |
81.3 to 82.1 °C; 178.2 to 179.7 °F; 354.4 to 355.2 K |
|
Solubility in water |
Miscible |
|
log P |
−0.334 |
|
Vapor pressure |
9.71 kPa (at 20.0 °C) |
|
Henry's law |
530 μmol/(Pa·kg) |
|
Acidity (pKa) |
25 |
|
UV-vis (λmax) |
195 nm |
|
Absorbance |
≤0.10 |
|
Magnetic susceptibility (χ) |
−28.0×10−6 cm3/mol |
|
Refractive index (nD) |
1.344 |
What is ACN acetonitrile (CAS 75-05-8) used for?
- Chemical Production: Methyl cyanide finds extensive applications in chemical manufacturing. It serves as an intermediate for synthesizing various organic compounds, such as ethylene and propylene. These compounds play a crucial role in producing polymeric materials like plastics, rubber, and fibers.
- Solvent Applications: As an excellent organic solvent, methyl cyanide dissolves numerous substances that resist dissolution by other solvents. Consequently, it finds extensive use in coatings, inks, adhesives, and related fields.
- Pharmaceutical Manufacturing: Acetonitrile also plays a vital role in pharmaceutical production, being essential for synthesizing many drugs.
- Pesticide Production: Acetonitrile is also utilized in the production of pesticides, including insecticides and herbicides.
- Other Applications: Furthermore, acetonitrile serves functions in the electronics industry, textile printing and dyeing, and metal processing. For instance, in electronics manufacturing, it is employed in cleaning and etching processes; in textile dyeing, it dissolves dyes and pigments.
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