Temperature dependence of the refractive index for three chloromethane liquids at 514.5 nm and 632.8 nm wavelengths

S. Valkai, J. Liszi, I. Szalai

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18 Citations (Scopus)

Abstract

For the prediction of thermophysical properties of transparent liquids by means of light scattering, the refractive indices and densities are indispensable quantities. The temperature dependence of the refractive index at two laser line wavelengths (Ar-ion, 514 nm, and He-Ne, 632.8 nm), and the density of carbon tetrachloride, chloroform, and dichloromethane are presented at temperatures from T = 290 K to T = 340 K, at atmospheric pressure. An unusual linear temperature dependence was observed for both quantities, which is in harmony with the empirical correlation equation of Ward and Kurtz. On the basis of our results and literature data it can be concluded that the linear temperature dependence of refractive indices and densities is only valid for aprotic solvents. A description of the practical application of the Abbe refractometer at the laser lines is also given.

Original languageEnglish
Pages (from-to)825-832
Number of pages8
JournalJournal of Chemical Thermodynamics
Volume30
Issue number7
Publication statusPublished - Jul 1998

Fingerprint

Methyl Chloride
Refractive index
refractivity
Wavelength
temperature dependence
Liquids
liquids
wavelengths
refractometers
thermophysical properties
carbon tetrachloride
Refractometers
chloroform
Temperature
Carbon tetrachloride
lasers
Carbon Tetrachloride
Lasers
Methylene Chloride
atmospheric pressure

Keywords

  • Carbon tetrachloride
  • Chloroform
  • Density
  • Dichloromethane
  • Refractive index
  • Temperature dependence

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "For the prediction of thermophysical properties of transparent liquids by means of light scattering, the refractive indices and densities are indispensable quantities. The temperature dependence of the refractive index at two laser line wavelengths (Ar-ion, 514 nm, and He-Ne, 632.8 nm), and the density of carbon tetrachloride, chloroform, and dichloromethane are presented at temperatures from T = 290 K to T = 340 K, at atmospheric pressure. An unusual linear temperature dependence was observed for both quantities, which is in harmony with the empirical correlation equation of Ward and Kurtz. On the basis of our results and literature data it can be concluded that the linear temperature dependence of refractive indices and densities is only valid for aprotic solvents. A description of the practical application of the Abbe refractometer at the laser lines is also given.",
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T1 - Temperature dependence of the refractive index for three chloromethane liquids at 514.5 nm and 632.8 nm wavelengths

AU - Valkai, S.

AU - Liszi, J.

AU - Szalai, I.

PY - 1998/7

Y1 - 1998/7

N2 - For the prediction of thermophysical properties of transparent liquids by means of light scattering, the refractive indices and densities are indispensable quantities. The temperature dependence of the refractive index at two laser line wavelengths (Ar-ion, 514 nm, and He-Ne, 632.8 nm), and the density of carbon tetrachloride, chloroform, and dichloromethane are presented at temperatures from T = 290 K to T = 340 K, at atmospheric pressure. An unusual linear temperature dependence was observed for both quantities, which is in harmony with the empirical correlation equation of Ward and Kurtz. On the basis of our results and literature data it can be concluded that the linear temperature dependence of refractive indices and densities is only valid for aprotic solvents. A description of the practical application of the Abbe refractometer at the laser lines is also given.

AB - For the prediction of thermophysical properties of transparent liquids by means of light scattering, the refractive indices and densities are indispensable quantities. The temperature dependence of the refractive index at two laser line wavelengths (Ar-ion, 514 nm, and He-Ne, 632.8 nm), and the density of carbon tetrachloride, chloroform, and dichloromethane are presented at temperatures from T = 290 K to T = 340 K, at atmospheric pressure. An unusual linear temperature dependence was observed for both quantities, which is in harmony with the empirical correlation equation of Ward and Kurtz. On the basis of our results and literature data it can be concluded that the linear temperature dependence of refractive indices and densities is only valid for aprotic solvents. A description of the practical application of the Abbe refractometer at the laser lines is also given.

KW - Carbon tetrachloride

KW - Chloroform

KW - Density

KW - Dichloromethane

KW - Refractive index

KW - Temperature dependence

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