Colloidal Particles
Colloidal particles are tiny particles that are dispersed throughout a medium, such as a liquid or gas. These particles typically range in size from 1 nanometer to 1 micrometer. They do not settle out over time, which distinguishes them from larger particles that can easily separate from a solution. Common examples of colloidal systems include milk, fog, and paint.
The behavior of colloidal particles is influenced by various factors, including their size, shape, and the properties of the surrounding medium. They can exhibit unique optical and electrical properties, making them important in fields like materials science and pharmaceuticals. Understanding colloidal systems is essential for developing products like cosmetics and food additives.