Zur Mischadsorption von Radon an Aktivkohle mit verschiedenen Trägergasen

Abstract

2224HELVETICA CHIMICA ACTA.Rechts und links von der Laufbahn der Alkali-Ionen bleiben die Ca"-Ionen im Papier, weil sie nicht verdrangt werden, bei einer solchen Chromatographie an ihrem Platz, was zeigt, dass das Losungsmittel allein die Ablijsung der Ca**-Ionen nicht verursacht.2 us a m me nf a s s ung. Es wurden mit NH,-haltigen Cadmiumacetatlosungen im Papierchromatogramm Aufspaltungen bis zu 3 Flecken (Multipots) erhalten.Universitat Rasel, Anstalt fur anorganische Chemie.

New apparatus for measuring radon adsorption on solid adsorbents

“…The heat of adsorption at intermediate loading levels is somewhat below the heat of condensation, which is 4.01 kcal/mol, but rises as adsorption proceeds. The values found in this study are lower than those of Gubeli and Stori (1954), who found values between 6.86 and 7.82 kcal/mol for radon adsorption on carbon in the presence of N2. However, it should be noted that the surface characteristics of the two charcoals probably are not the same.…”

“…A few studies are available in the literature that have dealt with the measurement of equilibrium radon adsorption data. Gubeli and Stammbach (1951) obtained adsorption isotherms of radon in air on activated carbon in the temperature range 273-393 K. Later, Gubeli and Stori (1954) also obtained adsorption isotherm data for radon on elm-wood carbon using hydrogen, nitrogen, and carbon dioxide as carrier gases at atmospheric pressure. The isotherms of radon on both types of carbon were linear.…”

Adsorption of Radon on Ice Surfaces

“… a The adsorption enthalpies were determined by isothermal gas chromatography (refs −28, 35), from adsorption isotherm or isostere (dynamic: refs , , , ; static: refs , ), by calorimetry (ref ), and from a literature survey (refs , −24, 30−32). …”