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Studies on the effect of non-electrolytes on the stability of copper ferrocyanide sol

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Summary

In general the addition of non-electrolyte to hydrophobic sols results into an irregular change in the stability of the latter, towards electrolyte coagulation. Precipitation concentration of potassium chloride for copper ferrocyanide sol changes in the presence of ethyl alcohol, glycol or glycerol. Ethyl alcohol sensitizes while others stabilise the sol to different extents. In presence of these alcohols, electrolytic coagulation of copper ferrocyanide sol is attended by a decrease in the conductance and hydrogen ion concentration as compared to a pure sol (sol without non-electrolyte).

Zusammenfassung

Im allgemeinen verursacht das Zufügen von Nicht-Elektrolyten zu hydrophoben Solen eine irreguläre änderung der Stabilität der letzteren hinsichtlich der Elektrolytkoagulation. Die Fällungskonzentration von Kaliumchlorid für Kupfer-Ferrocyanid-Sol ändert sich bei Gegenwart von äthylalkohol, Glykol oder Glycerin. äthylalkohol sensibilisiert, während die anderen das Sol in verschiedenem Ausma\ stabilisieren. In Gegenwart dieser Alkohole ist die Elektrolytkoagulation des Kupfer-Ferrocyanid-Sols von einer Abnahme der Leitfähigkeit und der Wasserstoffionenkonzentration, verglichen mit den reinen Solen ohne Nicht-Elektrolyt begleitet.

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Beg, M.A. Studies on the effect of non-electrolytes on the stability of copper ferrocyanide sol. Kolloid-Zeitschrift 153, 164–166 (1957). https://doi.org/10.1007/BF01520215

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  • DOI: https://doi.org/10.1007/BF01520215

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