The stability of negative As2S3 sol of mean particle diameter 90 A has been studied in presence of different valent cations viz. Na+, Ba2+, UO22+, Al3+ and Th4+ using D. L. V. O. theory. The zeta potential (assumed to be equal to the surface potential) of the sol particles was calculated from the electrophoretic measurements as a function of ionic strength. The knowledge of zeta potential permitted the calculation of repulsive energy VR, and the energy of attraction VA was estimated from physico-chemical data. The stability ratio, W was calculated from interaction profiles which were made from the combination of the two energies. Stability factor, F, was also estimated from the Derjaguin equation, but it was not satisfactory presumably owing to the exclusion of VA. In general, the interaction between As2S3 particles could be interpreted in the light of D. L. V. O. theory. The flocculation powers of cations were in the order of Al3+>Th4+>UO2+>Ba2+>Na+. The anomalous behaviour of thorium is perhaps due to i...

Ueber das Fällungspotential des Arsensulfidhydrosols in Gegenwart eines Ueberschusses von Arsenoxyd

Stability of Hydrosol of Arsenic Trisulphide in the Light of D. L. V. O. Theory

The changes in the cataphoretic speed, stability and conductivity of colloidal zinc ferrocyanide dialysed, diluted, allowed to age and exposed to sunlight for different periods have been studied.

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Ueber das Fällungspotential des Arsensulfidhydrosols in Gegenwart eines Ueberschusses von Arsenoxyd

Citations

Stability of Hydrosol of Arsenic Trisulphide in the Light of D. L. V. O. Theory

Importance of dialysis in the study of colloids