Journal ArticleDOI
Studies on coagulation and electrokinetic potential of tin sulphide sol
B. N. Ghosh,P. K. De +1 more
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In this article, the apparent electrokinetic potential of tin sulphide sol has been measured both by electro-osmotic and electrophoretic methods in the region of slow coagulation usingSmoluchowski's equation in the presence of equicoagulating concentrations of electrolytes containing counter-ions of different valency.Abstract:
The apparent electrokinetic potentialζ a of tin sulphide sol has been measured both by electro-osmotic and electrophoretic methods in the region of slow coagulation usingSmoluchowski's equation in the presence of equicoagulating concentrations of electrolytes containing counter-ions of different valency. From the apparent values ofζ a the true ζ was found by applying surface conductance correction using the equation 1/ζ a=1/ζ a+m·1/S wherem is a constant involving specific surface conductance andS the specific conductance in bulk of the solution in contact with the colloid particles.read more
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Journal ArticleDOI
Evaluation of true zeta potential of the particles of an As2S3 sol in the presence of equicoagulating concentration of electrolytes
Journal ArticleDOI
Electrophoretic Measurement of the True Zeta-Potential of Arsenious Sulphide Sol in the Region of Slow Coagulation
B. N. Ghosh,K. C. Ray +1 more
TL;DR: In this paper, Bikerman et al. showed that the true potential and the potential calculated from the Smoluchowski equation are linked by the following equation where χ represents the specific surface conductivity, S the bulk specific conductivity of the intermicellar fluid, L the length and r the radius of the cross-section of the particle.
Journal ArticleDOI
Experiments on the Theory of Soil-Acidity
TL;DR: In this paper, a short account is given of some experiments carried out with Mr. Kamalacharan Bhattacharya and Mr. Bankim Chandra Roy, where the origin of soilacidity has been discussed.