Abstract
AbstractDiffusivities of ammonium and potassium alum solutions have been measured by an interferometric technique. Values are recorded for the diffusion of solutions of different concentration into water at 25°, and of solutions containing 2 g. of hydrate/100 g. of water diffusing into water at temperatures within the range 20 to 40°. Measurements have also been made for diffusion between near‐saturated solutions, and these values are considered suitable for application in crystal growth and dissolution studies. The activation energy for diffusion in near‐saturated solutions (20 to 40°) is approximately 2.8 kcal./mole.Viscosity and density measurements have been made over the temperature range 15–50° and at solution concentrations up to saturation. Solubility data have also been checked over the same temperature range.
Published Version
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