Gelatin, when dissolved in water, is a colloid because the protein molecules that compose it, mostly derived from collagen, are much larger than usual dissolved molecules, but they remain evenly dispersed throughout the water. Specifically, it is a type of colloid known as a sol, a colloid of solid particles dispersed through another substance. The lesser ingredient in a colloid, in this case gelatin, is called the dispersed phase.Know More
Gelatin only remains a liquid when warm, becoming a gel when cooled. A gel is another type of colloid, where a liquid is dispersed through a solid. Warming a gelatin gel returns it to a liquid state. Any colloid, however, involves very large particles in solution. Colloids are very common in biological systems, because organic molecules can be much larger than most inorganic molecules.
Colloids come in a variety of types. One liquid dispersed in another is known as an emulsion. Milk is a very well-known emulsion. Even gases can be involved in colloids. Colloids where gases are dispersed in liquids or solids are known as foams. Colloids where solids are dispersed in gases are known as aerosols. Smoke is an example of an aerosol with solids dispersed through gases, while fog is an example of liquids dispersed through gases.Learn more about Chemistry
Knox gelatin is a colorless and translucent hard gel like substance found in food products that is made from collagen, which is extracted from different kinds of animal by-products. It is most commonly used as a gelling agent in cosmetic manufacturing, pharmaceuticals, photography and food.Full Answer >
The main difference between a colloid and a suspension is that a suspension will separate into particles, but a colloid will not. A colloid is the middle line between a suspension and a solution.Full Answer >
Pure water is neutral because the total electric charges of the atoms and ions that compose it are equal and opposite, so they cancel each other out. Water that isn't pure, such as drinking water, may contain other elements that can affect its acidity.Full Answer >
Fluorine is derived from the Latin word "fluere," which means "flow" or "flux." Fluorine in the form of calcium fluoride, or fluorite, was used as a flux in ore smelting as early as the 1500s. The addition of fluorite helps the metal ore become liquid at a lower temperature.Full Answer >