Definitions for "Emulsions"
They are colloidal systems : A liquid in a liquid colloidal system is called an emulsion. Usually a liquid in liquid preparation consist of two otherwise completely immiscible liquids one of which exists as minute globules coated by another substance (the surfactant) and is dispersed throughout the other. Emulsions are not usually very stable. Milk is an example of an oil-in-water emulsion with relatively low levels of oil. Surfactants play an important role in their manufacture and their subsequent stability. Surfactants are used to enhance the stability of desired emulsions and also used to break down (degrade) unwanted emulsions e.g the dispersed water present in crude oil and the emulsions formed in effluent streams.
A compound of liquids that do not mix and are insoluble in each other. An example is water insoluble polymers being suspended in water using emulsifiers to produce waterborne coatings of non-water soluble ingredients. These non-water soluble polymers are then evenly spread onto a floor surface where they dry and then protect the surface from water and other foreign matter.
A Mixture of two immiscible liquids which do not mix under normal conditions. One is usually dispersed throughout the other in the form of droplets
Keywords:  trophic, microscopy
Microscopy Trophic