✍ Scribed by M.C. Montemayor; E. Fatas
No coin nor oath required. For personal study only.
The reduction of In(llI) in solutions containing 0.5, 0.75 and 1 M of NaI and with an ionic strength of 1.00 maintained with sodium perchlorate, has been studied by measuring the interfacial admittance spectra at different dc potentials of the dropping mercury electrode (dme). The frequency dependence of the admittance corresponds to that of a reversible electrode reaction with reactant adsorption. The adsorption parameters have been determined and the strange behaviour of u', which increases with cathodic potential must be pointed out. This Seems to indicate that the adsorption occurs beyond the potential at which begin the reduction of indium. It is shown that the potential dependence of the adsorption parameters can he mathematically described by a Langmuir isotherm with the adsorption free energy being at least a quadratic function of potential. Strong adsorption effects have not been found.
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The reduction of In(II1) in solutions containing 0.05, 0.1 and 0.25 M of NaI and with an ionic strength of 1.00 maintained with sodium perchlorate, has been studied by means of interfacial admittance measurements at different frequencies and de potentials of the dropping mercury electrode. Our resu
The adsorption processes of two different types of surfactant from aqueous solutions have been studied on several solids. The adsorbates used were a nonionic (TX-100) and a series of anionic (NP4S, NP10S, and NP25S) oxyethylenic surfactants. As adsorbent, five nonporous solids, including three quart
## Abstract Technical fermentations, such as the acetone‐butanol fermentation and the 2: 3‐butylene glycol fermentation, yield products in the form of very dilute aqueous solutions. The volatile products may be isolated by adsorption on active carbon. In the case of 2 : 3‐butylene glycol the desorp