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In this chapter, we will consider the nature of solutions, and examine factors that determine whether a solution will form and what properties it may have. In addition, we will discuss colloids—systems that resemble solutions but consist of dispersions of particles somewhat larger than ordinary molecules or ions.
Describe the composition and properties of colloidal dispersions. List and explain several technological applications of colloids. As a child, you may have made suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water, known as tempera paint.
Learning Objectives. By the end of this section, you will be able to: Describe the composition and properties of colloidal dispersions. List and explain several technological applications of colloids.
19 Ιουν 2020 · A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. The particles are spread evenly throughout the medium, which can be a solid, liquid, or gas.
4 Οκτ 2023 · First, we describe the synthesis of colloidal samples and techniques for characterizing particle concentration, particle size, and surface charge number. Next, we will show how to prepare various colloidal crystals described in Chap. 2. Some practical tips will also be presented.
Colloid Examples. The table below lists a few examples of colloids. [1,3,6] Preparations. Colloids are created through various techniques, two prominent ones being the condensation method and the dispersion method. [2,6] Condensation Method. The condensation method initiates particle growth from smaller entities.
Colloid is a term that has come to encompass solid particles suspended in a liquid (a colloidal dispersion), microscopic droplets in a liquid (an emulsion), or either solid or liquid phases suspended in a gas (an aerosol).
