Accession Number:

ADA128887

Title:

Refractive Index of Alkali Halides and Its Wavelength and Temperature Derivatives.

Descriptive Note:

State-of-the-art rept.

Corporate Author:

THERMOPHYSICAL AND ELECTRONIC PROPERTIES INFORMATION ANALYSIS CENTER LAFAYETTE IN

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

278.0

Abstract:

Refractive index data for alkali halides are exhaustively surveyed, compiled, and analyzed. Recommended values at 293 K for the transparent region are generated for the materials for which experimental data are sufficiently abundant and reliable. Provisional or typical values are also provided for the wavelength regions were available data are insufficient or missing. Reasonable estimations of refractive index for the very scantily measured materials were made by incorporating the dielectric constants and wavelengths of absorption peaks into a simplified dispersion equation. Temperature derivatives of refractive index for most of the alkali halides were unavailable. However, using the existing data for the five alkali halides, novel empirical facts were discovered and dndT formulas were constructed for all of the alkali halides. The calculated dndT values agree remarkably well with the existing experimental data.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE