The determination of the complex refractive indices of some concentrated aqueous salt solutions at submillimetre wavelengths - Sorbonne Université
Article Dans Une Revue Chemical Physics Année : 1981

The determination of the complex refractive indices of some concentrated aqueous salt solutions at submillimetre wavelengths

M. Bennouna
  • Fonction : Auteur
Jean Claude Lestrade
  • Fonction : Auteur
J.R. Birch
  • Fonction : Auteur

Résumé

Recent developments in far infrared laser spectrometry and dispersive Fourier transform spectrometry have allowed the full spectral variation of both parts of the complex refractive indices of some aqueous salt solutions in the spectral region 25–450 cm−1 to be determined. The salts studied were LiCl, LiClO4, NaCl, NaClO4, NaI, KCl, KBr, KI, KF, MgCl2, Mg(ClO4) and Bu4NBr (tetrabutylammonium bromide). The results show that in the presence of some electrolytes the optical constants of the solution differ significantly from those of pure water, and that in localised spectral regions the absorption can be many times less than that of pure water.

Domaines

Chimie

Dates et versions

hal-04739082 , version 1 (16-10-2024)

Identifiants

Citer

M. Bennouna, Hubert Cachet, Jean Claude Lestrade, J.R. Birch. The determination of the complex refractive indices of some concentrated aqueous salt solutions at submillimetre wavelengths. Chemical Physics, 1981, 62 (3), pp.439-445. ⟨10.1016/0301-0104(81)85137-3⟩. ⟨hal-04739082⟩
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