What is an emulsifier?
When water and oil are mixed together and vigorously shaken, a dispersion of oil droplets in water - and vice versa - is formed. When shaking stops, the phases start to separate. However, when an emulsifier is added to the system, the droplets remain dispersed, and a stable emulsion is obtained.
An emulsifier consists of a water-loving hydrophilic head and an oil-loving hydrophobic tail. The hydrophilic head is directed to the aqueous phase and the hydrophobic tail to the oil phase (see figure 1). The emulsifier positions itself at the oil/water or air/water interface and, by reducing the surface tension, has a stabilising effect on the emulsion.
An emulsifier consists of a water-loving hydrophilic head and an oil-loving hydrophobic tail. The hydrophilic head is directed to the aqueous phase and the hydrophobic tail to the oil phase (see figure 1). The emulsifier positions itself at the oil/water or air/water interface and, by reducing the surface tension, has a stabilising effect on the emulsion.
Figure 1: An oil-in water (left) and water-in-oil (right) emulsion
The tube on the left contains an emulsion. The two separated layers are shown on the right.
Hi there very cool site!! Guy .. Beautiful .. Wonderful .
AntwortenLöschen. I will bookmark your blog and take the feeds also? I am glad to find a lot of helpful information here in the put up,
we need work out more techniques in this regard, thank Packaging Equipment