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Why is dichloromethane DCM used as a solvent?

Mar 18, 2026 Leave a message

CAS 75-09-2 Dichloromethane (DCM)  is widely used as an industrial solvent due to its moderate polarity, strong solubility, low boiling point, and low flammability. It is suitable for a variety of applications, including chemical processing, pharmaceuticals, coatings, and extraction processes.

 

Dichloromethane (DCM) Specifications Table

Property Dichloromethane (DCM) Chloroform
Formula CH₂Cl₂ CHCl₃
Molecular weight 84.93 g/mol 119.38 g/mol
Boiling point 39.6°C (103.3°F) 61.2°C (142.2°F)
Melting point -96.7°C -63.5°C
Density 1.33 g/mL 1.48 g/mL
Vapor pressure 435 mmHg at 20°C 197 mmHg at 20°C
Dipole moment 1.60 D 1.04 D
Dielectric constant 8.93 4.81

 

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Industrial Applications of DCM solvent

Dichloromethane (DCM) is a widely used organic solvent because of its good solvency and volatility.

Main uses:

  • Paint stripping and coating removal
  • Cleaning agent for metals, electronics, and machinery
  • Solvent for adhesives, resins, waxes, and oils
  • Extraction solvent for food, pharmaceuticals, and chemicals
  • Solvent in chemical synthesis and laboratory processes

 

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Why Is Dichloromethane (DCM, CAS 75-09-2) Used as a Solvent?

1. Strong solubility: DCM dichloromethane can dissolve a wide variety of organic compounds (resins, oils, polymers); it is superior to many solvents in coatings, adhesives, and chemical reactions.

2. Moderate polarity: Suitable for both polar and non-polar solutes; methylene chloride solvent is ideal for extraction, chromatography, and organic synthesis.

3. Low boiling point and high volatility: With a boiling point of approximately 39.6°C, it evaporates rapidly; ideal for use in coatings, paint stripping, and degreasing.

 

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