kolloidikus

Kolloidikus is a term that refers to colloids or colloidal dispersions. A colloid is a mixture in which one substance of dispersed microscopic particles is suspended in another substance. The dispersed particles have a size between approximately 1 and 1000 nanometers. Unlike a true solution, the particles in a colloid are not dissolved but are spread throughout the dispersing medium. Examples of colloids include milk, fog, and smoke.

The behavior of colloidal particles is distinct from those in solutions or suspensions. They are large enough to scatter light, a phenomenon known as the Tyndall effect, which is often used to identify colloids. While visible to the naked eye, individual colloidal particles are too small to be seen under a standard microscope. They remain suspended due to the constant random motion of the molecules in the dispersing medium, a process called Brownian motion, which prevents them from settling out.

Colloidal systems are prevalent in nature and industry. In biology, many biological fluids like blood plasma and cytoplasm are colloidal. In the food industry, products such as mayonnaise, yogurt, and ice cream are examples of colloids. Industrially, colloids are utilized in the production of paints, pharmaceuticals, and cosmetics. Understanding the properties and behavior of colloids is crucial in various scientific and technological fields.