Water In Oil Emulsion Diagram
The emulsion in which oil is present as the dispersed phase and water as the dispersion medium continuous phase is called an oil in water emulsion. In o w emulsions oil is dispersed in a continuous water phase while in w o emulsions water droplets are dispersed in oil.
Interfacial Energy During The Emulsification Of Water In Heavy
Emulsions being liquids do not exhibit a static internal structure.
Water in oil emulsion diagram. Water in oil emulsions are colloidal systems having water droplets dispersed throughout the oil. For a w o emulsion the emulsifier s orientation is reversed. Multiple emulsions are also possible including a water in oil in water emulsion and an oil in water in oil emulsion.
I oil in water emulsions o w. Depending upon the nature of the dispersed phase the emulsions are classified as. An emulsion is a temporarily stable mixture of immiscible fluids such as oil and water achieved by finely dividing one phase into very small droplets.
Oil and water are normally immiscible but with proper mixing and stability agents a permanent mixture or emulsion can be achieved. Let the mixture rest and the oil and water will separate. Nonpolar tails extend outward into the oil phase while polar head groups point into the water droplet.
There also can be more complex systems such as oil in water in oil o w o. Therefore oil acts as the continuous phase of this colloid while water is the dispersed phase. In its quest to reduce emission from heavy fuel oil fired boilers mew decided to apply pentol s pentomag and pentomuls technology gradually on its boilers as the emission reduction is.
If you mix oil and water and shake them a cloudy suspension is formed. 120 000 tons of heavy fuel oil is saved per year as like 584 000 tons of co 2 is reduced by using pentol s water in oil emulsion technology in kuwait. Milk is an example of the oil in water type of emulsion.
O w emulsions are comprised of oil droplets suspended in an aqueous phase while w o emulsions are the opposite water droplets suspended in a continuous oil phase. What is water in oil emulsion. Second they can form a water in oil emulsion in which water is the dispersed phase and oil is the continuous phase.
For example if we mix oil and water a suspension will form that over time. When added to an o w emulsion emulsifiers surround the oil droplet with their nonpolar tails extending into the oil and their polar head groups facing the water fig. Oil does not mix with water under normal conditions.
1 shows the temporal evolution of phase separation bursts and ordering that create a quadruple emulsion of alternating layers of oil and water see movie s1 upon contact with an aqueous solution of 0 1 wt f127 pluronic the ethanol leaks out of the ternary droplet as shown by the measured volume change over time in fig. Common emulsions can be oil suspended in water or aqueous phase o w or water suspended in oil w o. The result of an emulsion of oil and water mix is depended on the volume fraction of both phases and the kind of emulsifier utilized.
An emulsifying agent emulsifier is any substance that keeps the parts of an emulsion mixed together. An example would be oil and water. S2 this loss of ethanol from the droplet into the aqueous phase.
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