Table of Contents
What is the Dispersed Phase?
The dispersed phase is a component of a heterogeneous mixture that is in a state of suspension. The dispersed phase is made up of small particles that are evenly distributed throughout the mixture. Dispersed phase can be in either a liquid or solid state, and the particles can be either organic or inorganic.
Difference Between Dispersed Phase and Dispersed Medium
The dispersed phase is the dispersed material, while the dispersed medium is the material in which the dispersed phase is dispersed. In other words, the dispersed phase is the substance that is in smaller pieces, while the dispersed medium is the substance in which the dispersed phase is dispersed.
Types of Dispersion Systems
There are three types of dispersion systems: gas-solid, liquid-solid, and liquid-liquid.
- In gas-solid dispersion, the dispersing medium is a gas and the dispersed phase is a solid. The most common example is aerosolization, in which a solid (such as a drug) is dispersed in a gas (such as air) to create a mist or aerosol.
- In liquid-solid dispersion, the dispersing medium is a liquid and the dispersed phase is a solid. This type of dispersion often called wetting. In a typical wetting process, a liquid poured over a solid and the liquid spreads out to cover the surface of the solid. This process used to dissolve solids in liquids and to coat solid particles with liquids.
- In liquid-liquid dispersion, the dispersing medium is a liquid and the dispersed phase is a liquid. This type of dispersion often called emulsification. In an emulsion, one liquid dispersed in another liquid in the form of small droplets. Emulsions used to create stable suspensions of insoluble liquids and to create foams.
Dispersed Phase: Classification and Types
A dispersed phase is a material that dispersed in a continuous phase. The dispersed phase can be a solid, liquid, or gas. The dispersed phase can also be in the form of tiny particles, called nanoparticles.
There are several different types of dispersed phases. The most common type a solid dispersed in a liquid. This type often called a suspension. Another type a liquid dispersed in a liquid. This type often called an emulsion. A third type a gas dispersed in a liquid. This type often called a foam. Finally, a fourth type a solid dispersed in a gas. This type often called a dust.
Multimolecular Colloids
Multi-molecular colloids suspensions of particles that each made up of more than one molecule. Milk is an example of a multi-molecular colloid. The proteins in milk suspended in water and each protein made up of multiple individual molecules.
Macromolecular Colloids
- Macromolecular colloids are suspensions of large molecules, such as proteins, DNA, and polysaccharides, in a liquid.
- The size of the macromolecules in a colloid suspension can range from a few nanometers to a few micrometers.
- The large molecules in a macromolecular colloid usually too big to pass through the pores of a filter, so the colloid can be separated from the liquid component by filtration.
- The term “macromolecular colloid” sometimes used to describe a colloid suspension of any large molecule, not just a protein, DNA, or polysaccharide.
Associated Colloids
Colloids are particles that are larger than molecules, but smaller than grains of sand. They dispersed in a liquid, and their size and electrical charge determine how they interact with each other and with other particles in the liquid.
Some colloids are naturally occurring, such as milk and blood. Others created artificially, such as paint and ink. In all cases, the colloid particles suspended in a liquid, and the suspension is usually stable.
One common type of colloid is a suspension of solid particles in a liquid. This type of colloid often called a sol. The solid particles in a sol can be any size, from tiny molecules to large grains of sand.
A sol created by adding a solid to a liquid. The solid particles will sink to the bottom of the liquid, and the liquid will be cloudy. The sol can separated into its individual parts by pouring it through a filter. The solid particles will on the bottom of the container, and the liquid will be on top.
Another common type of colloid is a suspension of gas particles in a liquid. This type of colloid often called a foam. The gas particles in a foam can be any size, from tiny molecules to large bubbles.
A foam created by adding gas to a liquid. The gas will dissolve in the liquid, and the liquid will be cloudy. The foam can separated into its individual parts by pouring it through
How Does Dispersion Occur?
The dispersion of light is the splitting of white light into its component colors. This occurs when light passes through a prism.
How Does Dispersion Occur in Prism?
The light waves refracted as they pass from one medium to another. This is because the speed of light is different in different mediums. The light waves spread out as they pass through the prism.
What is a Dispersion System and How Does it Work?
A dispersion system a device used to break up a liquid into small droplets. This typically done to improve the efficiency of the liquid when it sprayed. The droplets created by the dispersion system are small and uniform in size, which allows them to more easily spread out when they released. This helps to ensure that the liquid evenly distributed and that there is minimal waste.
Dispersion Medium
A dispersion medium is a material that helps to break up light into its component colors. In a prism, for example, a dispersion medium is the glass that separates the colors of light as they pass through the prism.
What is a Colloid?
A colloid is a substance that dispersed in another substance in the form of tiny particles.
What is a Solution in Chemistry?
A solution is a homogeneous mixture of two or more substances.
