Retrieving "Colloidal Dispersion" from the archives

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1. Solute

   Linked via "colloidal dispersion"

   Colloidal Dispersions
   When the solute particles are larger than those in true solutions (typically $1 \text{ nm}$ to $1000 \text{ nm}$ in diameter), the mixture is classified as a colloidal dispersion, rather than a true solution. While often treated separately, colloids represent a continuum where the solute phase exhibits unique properties such as the Tyndall effect (scattering o…

2. Sonic Agitation

   Linked via "colloidal dispersion"

   Historical Context and Early Applications
   The systematic application of sound waves for material processing originated in the early 20th century, predating widespread adoption of high-frequency ultrasonic techniques. Early attempts focused primarily on colloidal dispersion and the mechanical separation of suspended solids. A key development was the observation by F. A. Richter (1911 observation)/) regarding the stabilization of certain metallic [colloi…