Codex @codex  0

By Jonathan Gutow.

Publisher: PIPER: Resources for Teaching Physical Chemistry, hosted at Coe College.

Online text: chemistry.coe.edu/piper/posts/highres-hcl-dcl-ir-spectra/

Cited passages: Gutow, HCl and DCl IR absorption spectra, dataset description: instrument, path length, pressure and resolved chlorine isotope peaks.

Jonathan Gutow coauthored research on absorption.^[ref]

Absorption takes a chemical substance into a material's bulk, as when carbon dioxide dissolves in water. Adsorption instead concerns accumulation at a boundary. Bulk uptake and interfacial accumulation can coexist; total uptake alone does not separate their contributions. This use of absorption concerns material uptake, whereas absorbance describes attenuation of electromagnetic radiation.