Inference of Adsorption from Differential Capacity Measurements

Some phase relationships between basic bismuth chlorides in aqueous solutions at 25 °C

“…This indicates that BiC13 is unstable with respect to hydrolysis to BiOC1, even in concentrated HCl. This is consistent with various studies o n BiOCl in acidic media (14)(15)(16)(17)(18)(19). We can also calculate a metastable equilibrium constant for coexisting BiOCl and Bi203:…”

“…Vasil'ev and Grechina (15,16) Other work on the solubility of BiOCl has been concerned principally with the speciation of bismuth in solution, and has not explicitly addressed the thermodynamics of BiOCl (17,18). Sammour and Moussa, however, d o mention that some of their emf measurements were consistent with those of Noyes and Chow (14,19).…”

“…Bismuth chloride complexes appear to be stable only in acidic solutions (17). The solubilities of a-Bi203 and the bismuth oxychlorides in neutral to basic solutions can thus be approximated by equilibria [15] to [18]:…”

Early Polarographic Studies on Proteins

“…The adsorption of gelatine, the protein most commonly used in early polarography for suppressing the unwanted maxima on the curves, was studied by many authors, either directly from lowering the electrode capacity (e.g., [17,18]) or indirectly by inhibitive effects on the kinetics of electrode reactions (e.g., [19 ± 21]). Adsorption of various albumins was followed by inhibition of metal ion reductions [22] or by AC polarography (e.g., [23,24]).…”

Catalytic and Kinetic Waves in Polarography

“…Furthermore, the adsorption characteristics of different organic compounds were determined: alcohols, esters, amines, nitrogen containing heterocyclic compounds, ketones, and several others in 0.1 N solutions of sodium perchlorate [308]; of n-valeric acid in acidic perchlorate solutions [309,310]; and n-amyl [311] and n-hexyl alcohols [288].…”