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CAS 75-05-8 Acetonitrile: What Is the Boiling Point and Melting Point of ACN?

Jan 29, 2026 Leave a message

CAS 75-05-8 Acetonitrile is a nitrile which is a hydrogen cyanide where the hydrogen (H) is replaced by a methyl group (-CH3).

Acetonitrile is a volatile organic compound. It is also called Methyl Cyanide,Cyanomethane or Methanecarbonitrile. The chemical formula of Acetonitrile is C2H3N.

 

What Is the Boiling Point and Melting Point of Acetonitrile?

  • Boiling point: 81.6°C (178.9°F)
  • Melting/Freezing point: -45.7°C (-46°F to -49°F)
  • Density: 0.786 g/mL (at 25°C)
  • Appearance: Transparent, colorless liquid Solubility: Miscible with water
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What Is Acetonitrile CAS 75-05-8 Used for?

Universal Solvent
CAS 75-05-8 Acetonitrile is widely used as a solvent in pharmaceutical manufacturing, plastic molding/casting, and fiber spinning; also employed for extracting fatty acids from vegetable/animal oils and in lithium battery production. In chemical laboratories, it serves as a critical reagent for detecting substances such as pesticide residues.

 

Extraction Distillation
Employed in petrochemical extraction distillation to separate C4 hydrocarbons and olefin-dienoid mixtures. Fully miscible with water and compatible with carbon tetrachloride, chloroform, acetone, diethyl ether, ethanol, and dichloroethane.

 

Chemical Synthesis Feedstock
Acetonitrile/Methyl Cyanide serves as a starting material for synthesizing various chemicals.

 

Petroleum Purifier
Acetonitrile Acn is used to remove phenols, pigments, and tar from petroleum hydrocarbons due to its immiscibility with these substances.

 

Laboratory-Grade Solvent
A commonly used laboratory solvent for chemical crystallization and a core solvent in high-performance liquid chromatography (HPLC) analysis for analytical testing.

 

 

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