refractive index increment

in polymer chemistry
https://doi.org/10.1351/goldbook.R05241
The change of the solution refractive index, n, with solute concentration, C, i.e. ∂n∂C.
Notes:
  1. The solute concentration is most frequently expressed in terms of mass concentration, molality or volume fraction. If expressed in terms of mass concentration or molality, the corresponding refractive index increments are referred to as specific or molal refractive index increments, respectively.
  2. Following use of the full name, the abbreviated name refractive increment may be used.
Source:
Purple Book, 1st ed., p. 65 [Terms] [Book]
Citation: 'refractive index increment' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.R05241 RIS BibTex EndNote
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