AJ Brown Thesis Isotherms

Repository containing adsorption isotherm data from

The Thermodynamics and Hystersis of Adsorption

by A. J. Brown

A Thesis submitted for the degree of Doctor of Philosophy

University of Bristol

October 1963.

Repository Contents:

1. Boundary (equilibrium) Isotherms of Xenon, Krypton, and Carbon Dioxide adsorption on Vycor Glass
2. Scanning Isotherms of Xenon on Vycor Glass at 151 K, including:

• Primary adsorption and desorption scanning isotherms
• Reversals inside the boundary isotherm
• Closed loops inside the boundary isotherm
• Subsidiary closed loops with secondary adsorption and desorption scanning isotherms inside the closed loops

3. Edited versions of (1) and (2) that correct obvious typographic errors
4. Python functions to:

• Extract specific isotherms (boundary or scanning) from the master source data
• Process isotherms to a standardized form, where the adsorption measurement is normalized again adsorbent mass and pressure is converted to nominal units
• Preserve significant figures in all numerical conversions
• Convert the isotherms to the NIST JSON Isotherm format

6. Jupyter notebooks that demonstrate usage of the Python functions in (4) and show example plots of

• Boundary isotherms
• Select sets of scanning isotherms