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REFERENCES: "H. H. Li. Refractive index of alkali halides and its wavelength and temperature derivatives. <a href=\"https://doi.org/10.1063/1.555536\"><i>J. Phys. Chem. Ref. Data</i> <b>5</b>, 329-528 (1976)</a> and references therein.<br> <sup>*</sup> Sellmeier formula is derived by critical analysis of experimental data from several sources."
COMMENTS: "297 K (24 °C)."
DATA:
  - type: formula 1
    range: 0.15 17
    coefficients: 0.41572 0.32785 0.117 3.18248 40.57
