Open AccessStudies on gas-solid equilibria. Part V.—Pressure-concentration equilibria between silica gel and (1) oxygen, (2) nitrogen, (3) mixtures of oxygen and nitrogen, determined isothermally at 0º C
Publication year - 1934
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1934.0043
Subject(s) - nitrogen , oxygen , isothermal process , adsorption , chemistry , silica gel , atmospheric pressure , saturation (graph theory) , analytical chemistry (journal) , atmosphere (unit) , thermodynamics , materials science , chromatography , organic chemistry , physics , oceanography , mathematics , combinatorics , geology
Experiments carried out on the adsorption of (1) pure oxygen, and (2) pure nitrogen by a sample of silica gel, at 0° C., and at pressures up to 1 atmosphere, have shown that the adsorption is directly proportional to the pressure in each experiment. The pressure-concentration isothermals are reproducible, completely reversible, and linear (except for a slight divergence at low pressures) throughout their whole length; there is therefore no sign of the silica gel approaching saturation with either oxygen or nitrogen at atmospheric pressure.