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Applied Optics

Applied Optics


  • Vol. 27, Iss. 16 — Aug. 15, 1988
  • pp: 3341–3343

Refractive index of solutions at high concentrations

W. Mahmood bin Mat Yunus and Azizan bin Abdul Rahman  »View Author Affiliations

Applied Optics, Vol. 27, Issue 16, pp. 3341-3343 (1988)

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The refractive index of liquid solutions at the He–Ne laser wavelength, 0.6328 μm, is presented. The measurements were carried out using the conventional minimum deviation method of an equilateral hollow glass prism. The refractive indices of sucrose, sodium chloride, glucose, and caster sugar solutions for a range density varying from distilled water to a saturated condition were measured. The result shows that at higher of concentrations a slight curvature can be seen from the plot of refractive index vs concentration of solution. However, the refractive index of sucrose shows a linear relationship with concentration. The accuracy of the measurements is estimated to be better than 0.3%.

© 1988 Optical Society of America

Original Manuscript: September 14, 1987
Published: August 15, 1988

W. Mahmood bin Mat Yunus and Azizan bin Abdul Rahman, "Refractive index of solutions at high concentrations," Appl. Opt. 27, 3341-3343 (1988)

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  1. R. S. Longhurst, Geometrical and Physical Optics (Wiley, New York, 1967).
  2. B. W. Grange, W. H. Stevenson, R. Viskanta, “Refractive Index of Liquid Solutions at Low Temperatures: An Accurate Measurement,” Appl. Opt. 15, 858 (1976). [CrossRef] [PubMed]
  3. D. D. Jenkin, “Refractive Index of Solution,” Phys. Educ. 17, 82 (1982). [CrossRef]
  4. J. M. Cariou, J. Dugas, L. Martin, P. Michel, “Refractive-Index Variations with Temperature of PMMA and Polycarbonate,” Appl. Opt. 25, 334 (1986). [CrossRef] [PubMed]
  5. J. D. Bass, D. J. Weidner, “Method for Measuring the Refractive Index of Transparent Solids,” Rev. Sci. Instrum. 55, 1569 (1984). [CrossRef]

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