
colloidal dispersions
Colloidal dispersions are mixtures where tiny particles are evenly spread throughout a liquid or gas, but do not settle out over time. These particles are larger than individual molecules but small enough to stay suspended, creating a stable mixture. Common examples include milk, fog, and paint. The particles in colloids are small enough to scatter light, giving the mixture unique properties, yet they remain evenly distributed without separating quickly. These dispersions are important in many industries, including food, medicine, and manufacturing, because they combine stability, appearance, and functional properties.