Refractive index database

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Optical constants of CH2Cl2 (Dichloromethane)
Bertie et al. 1995: n,k 1.54–12.5 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Conditions & Spec sheet

temperature: 25 °C


J. E. Bertie, Z. Lan, R. N. Jones, Y. Apelblat. Infrared intensities of liquids XVIII: Accurate optical constants and molar absorption coefficients between 6500 and 800 cm-1 of dichloromethane at 25°C, from spectra recorded in several laboratories, Appl. Spectrosc. 49, 840 (1995)


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Dichloromethane, CH2Cl2

Dichloromethane (CH2Cl2), commonly known as methylene chloride, is a volatile, colorless liquid with a slightly sweet aroma. It is widely used as a solvent, especially in the removal of paint and varnish, and in the decaffeination of coffee and tea. Due to its powerful solvent properties, it can dissolve a wide range of organic compounds, making it a versatile option in many industrial applications. However, dichloromethane's potential health effects, including its role as a potential carcinogen, have led to regulations on its use in consumer products in many countries.

Other names

  • Methylene chloride
  • Methylene dichloride
  • Solmethine
  • Narkotil
  • Solaesthin
  • Di-clo
  • Refrigerant-30
  • Freon-30
  • R-30
  • DCM
  • UN 1593
  • MDC

External links