Refractive index database

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Optical constants of CHCl3 (Chloroform)
Chang et al. 2024: n 0.4–2.0 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]


Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 295


21.5–22.0 °C


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)


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


Chloroform, CHCl3

Chloroform (CHCl3) is a volatile, colorless, and sweet-smelling organic compound. Historically, it was used as an anesthetic; however, due to its potential health hazards and the development of safer alternatives, its use in this capacity has been discontinued. In modern applications, chloroform is predominantly used as a solvent in laboratories and in the production of the refrigerant freon. It is also a precursor in the manufacture of hydrochlorofluorocarbon (HCFC) refrigerants. When exposed to light and air, chloroform can undergo a reaction to produce phosgene, a highly toxic compound. Thus, commercial chloroform bottles typically contain stabilizers to prevent this reaction.

Other names

  • Trichloromethane
  • Formyl trichloride
  • Methane trichloride
  • Methyl trichloride
  • Methenyl trichloride
  • TCM
  • Freon 20
  • Refrigerant-20
  • R-20
  • UN 1888

External links