What are the instability found in emulsion?

There are three types of instability in emulsions: (1) flocculation, (2) creaming, and (3) coalescence. Flocculation occurs when there is an attractive force between the droplets, so they form flocs.

How do you maintain stability of emulsion?

To increase the kinetic stability of emulsions, stabilisers such as emulsifiers, weighting agents, ripening inhibitors and texture modifiers (thickeners and gelling agents) are often used [16].

What are the stability problems of emulsion?

Temperature. Temperature can affect emulsion stability significantly. Temperature affects the physical properties of oil, water, interfacial films, and surfactant solubilities in the oil and water phases. These, in turn, affect the stability of the emulsion.

What are emulsions PPT?

An emulsion is a thermodynamically unstable system consisting of at least two immiscible liquid phases one of which is dispersed as globules in the other liquid phase stabilized by a third substance called emulsifying agent.

How many emulsions are in a PowerPoint presentation?

EMULSIONS EMULSIONS Introduction Types of emulsions Emulsifying agents Methods of Preparation of Emulsions Tests for emulsion types Emulsion Stability Phase Inversion – PowerPoint PPT presentation Number of Views:5369 Avg rating:3.0/5.0 Slides: 25 Provided by: philadelp2 Category: Tags:emulsions moreless Write a Comment User Comments (0)

What are the factors that affect the stability of an emulsion?

Factors such as the emulsifiers used, droplet size, type of emulsion, and fat or water concentration can all influence emulsion stability (David Julian McClements, 2004). The type of emulsifier and/or surfactant employed is one of the most important factors to consider when developing an emulsion.

What does increasing disorder during the formation of an emulsion mean?

The increasing disorder during the formation of an emulsion means a positive ∆S contributing to stability. ∆H is the enthalpy of the system and can be considered as the binding energy of the organic bulk material or the energy input needed to achieve a certain average droplet size. Some Thermodynamics (2)

How is the dispersed phase of an emulsion composed?

Emulsion is a dispersion in which the dispersed phase is composed of small globules of a liquid distributed throughout a vehicle in which it is immiscible Dispersion System Suspension is a two phased system in which a finely divided solid is dispersed in a continuous phase of solid, liquid, or gas.