Term: local fraction volatilized, χ v, \(\beta_{\text{v}}\)
https://doi.org/10.1351/goldbook.L03606

Definition:
The substance fraction of the volatilized component in the total desolvated component. The gaseous state includes free atoms, molecules and radicals. This quantity is measured in a defined part of the flame, usually the observation space. The fraction volatilized varies inversely with the size of the desolvated particles. Since χ v varies markedly with the height in the flame, its observed value represents an average.

Related Terms:
1) substance fraction (http://doi.org/10.1351/goldbook.S06075).

Source: Orange Book, 2nd ed., p. 168 (https://media.iupac.org/publications/analytical_compendium/)

Citation: 'local fraction volatilized, χ v, \(\beta_{\text{v}}\)' 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.L03606

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