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Optical constants of CH2Cl2 (Dichloromethane, DCM)
Chang et al. 2024: n 0.4–2.0 µm

Wavelength: µm
 (0.4–2)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.9923λ^2}{λ^2-0.107^2}$$

Conditions & Spec sheet

temperature: 295

Comments

21.5–22.0 °C

References

H.-J. Chang, N. Munera, C. Lopez-Zelaya, D. Banerjee, G. Beadie, E. W. Van Stryland, D. J. Hagan. Refractive index measurements of liquids from 0.5 to 2 µm using Rayleigh interferometry. Opt. Mater. Express 14, 1253–1267 (2024)

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

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

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