What is the freezing point of acetonitrile (CAS 75-05-8)?

Jan 29, 2026 Leave a message

 

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.

 

What is the freezing point of acetonitrile (CAS 75-05-8)?

 

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.

 

 

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Acetonitrile (CAS 75-05-8) Manufacturing
Acetonitrile (CAS 75-05-8) Manufacturing

 

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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