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The structure of the interface layer in silver iodide/tenside systems

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  • Colloid Science
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Summary

Heterogeneous exchange process between iodide ions in the liquid and solid phase in silver iodide suspensions depends on concentration and chemical nature of the tenside present. Between the critical coagulation and stabilization concentrations of the ionic tenside with the electrical sign opposite to the electrical sign of the silver iodide particles, the AgI—I(131I) exchange becomes accelerated. Ultramicroscopic microelectrophoresis, radiometry, X-ray diffractometry and the results of the optical measurements indicate various structures of the interphase layer in the ‘silver iodide — tenside’ systems with a complex dependence on the conditions of the formation.

Zusammenfassung

Der heterogene Austauschprozeß zwischen Silberionen in Silberjodid-Suspensionen hängt von Konzentration und chemischer Natur anwesender Tenside ab. Wenn die elektrische Ladung des Tensides entgegengesetzt der Silberjodid-Teilchen ist, erhöht sich die AgJ-J Austauschgeschwindigkeit zwischen den kritischen Koagulations- und Stabilisationskonzentrationen. Ergebnisse ultramikroskopischer, mikroelektrophoretischer, radiometrischer, röntgenographischer und optischer Messungen weisen auf eine Reihe verschiedener Strukturen der Grenzflächenphase hin und sie zeigen eine komplizierte Abhängigkeit von den Bildungsbedingungen des AgJ.

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Despotović, R., Filipović, N. & Katanee, J. The structure of the interface layer in silver iodide/tenside systems. Colloid & Polymer Sci 253, 306–310 (1975). https://doi.org/10.1007/BF02352079

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  • DOI: https://doi.org/10.1007/BF02352079

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