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An emulsion is a mixture of two immiscible substances. One substance (the dispersed phase) is dispersed in the other (the continuous phase). Examples of emulsions include butter, asphalt, mayonnaise and cutting fluid for metalworking. In butter, a continuous phase of milk fat surrounds droplets of water.
20ml ampule of 1% propofol emulsion suitable for intravenous injection. The manufacturers emulsify the lipid soluble propofol in a mixture water, soy oil and egg lecithin.
Colliodal emulsions are stable, meaning that the one phase will remain dispersed in the other over time. Non-colloidal emulsions are unstable and will tend to separate into separate, non-emulsified phases, over time. For example, homemade oil and vinegar salad dressing is an unstable emulsion that will quickly separate unless shaken continuously. An emulsifier (also known as a surfactant) is a substance which stabilizes an emulsion. Lecithin (found in egg yolks is a common food emulsifier Both mayonnaise and Hollandaise sauce are emusions stabilized with egg yolk lecithin. Another type of emulsifier is detergentA detergent is a compound, or a mixture of compounds, whose molecules have two distinct regions—one that is hydrophilic, and dissolves easily in water, and another region that is hydrophobic, with little (if any) affinity for water. As a consequence, thes, which will bind to both oilOil is a generic term for fluids that are not miscible with water. The name comes from Latin oleum for olive oil. Oil is frequently used to refer to petroleum an "oil shortage" generally means an inadequate supply of petroleum rather than cooking oil. and waterDrinking water This article focuses on water as we experience it every day. The water (molecule) article describes water from a scientific and technical perspective. Water is an abundant substance on Earth. It exists in many forms, such as sea, rain, and, thus holding microscopic oil droplets in suspension. This principle is exploited in washing-up liquid to remove grease from plates, etc.
Emulsions tend to have a cloudy appearance, because the many phase interface s scatter light that passes through the emulsion.
An emulsion paintFor information on the U. borough, see Paint, Pennsylvania. Paint is the general term for a family of products used to protect and add color to an object or surface by covering it with a pigmented coating. As a verb, painting is the application of paint. (often abbreviated to emulsion) is a waterDrinking water This article focuses on water as we experience it every day. The water (molecule) article describes water from a scientific and technical perspective. Water is an abundant substance on Earth. It exists in many forms, such as sea, rain, and-based paint commonly used for painting indoor surfaces. Emulsion paints are also known as latexLatex fom a tree, Latex is used in Rubber production. See also LAT&Chi a macro package for the TΧ typesetting system. Latex as found in nature, is the milky sap of many plants that coagulates on exposure to air. It is a complex emulsion in which prote paints. It is so called because the polymerA polymer is a long, repeating chain of atoms, formed through the linkage of many molecules called monomers. The monomers can be identical, or in complex polymers such as proteins the monomers have one or more substituted chemical groups, this gives them is formed through an emulsion polymerization whereby the monomers were emsulified in a water continuous phase. The polymer itself is not soluble in water and hence the paint is water resistant after it has dried. Residual surfactants in the paint as well as hydrolytic effects with some polymers cause the paint to still be susceptible to softening and, over time, degradation by water.
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