M J Patani
Articles written in Proceedings – Section A
Volume 36 Issue 6 December 1952 pp 530-536
Concentrated iron oxide sol of Graham type has been prepared and subjected to hot intermittent dialysis for a period of one month. The composition of the sol as well as the variation of the conductivity with dilution were determined. It has been found that the bulk of the stabilizing ions adhere to the micelles and the variation of the conductivity with dilution shows that the iron oxide sol behaves as a typical colloidal electrolyte.
Volume 40 Issue 3 September 1954 pp 119-124
In the case of aged arsenic trisulphide sol, arsenious acid is adsorbed on the colloidal particles and probably acts as a stabilizing electrolyte. The hydration in the case of aged arsenic trisulphide sol is found out by studying the distribution of electrolytes across a semipermeable membrane. The value of the hydration is 25·1 millimoles of water per gm. of the colloid. The hydration is greater in the sol conditions than in the coagulum.
Volume 49 Issue 3 March 1959 pp 151-157
In the case of silica sols prepared by peptizing silica gel with ammonia, ammonium silicate is the stabilizing electrolyte. When the sols are allowed to age, the specific conductivity of the sol increases due to the deadsorption of ammonium silicate. Although ammonium silicate is a salt of a weak base and a very weak acid, it is not completely hydrolysed under the conditions of the experiments. The adsorbed ammonium silicate behaves as a colloidal electrolyte and its equivalent conductivity is a fraction of its value in the free condition.