1.3 Physical Chemistry of Emulsion Systems 1.3. Emulsion : Emulsion are the colloidal solution in which, both the dispersed phase and. In many cases, theories on emulsion stability are not exact and semiempirical approaches are used. Liable to microbial contamination which can lead to cracking. Unfortunately, fundamental research on emulsions is not easy because model systems (e.g., with monodisperse droplets) are difcult to produce. (n) emulsion a light-sensitive coating on paper or film consists of fine grains of silver bromide suspended in a gelatin (n) emulsion (chemistry) a colloid in. Bulky, difficult to transport and prone to container breakages. Storage conditions may affect stability. Emulsions are the mixtures of two or more type of liquids where, one is such as droplets, of tiny or even ultramicroscopic size, which are distributed. An emulsion is when two liquids that do not normally mix (such as oil and water) are mixed together without dissolving them together into the same solution. A degree of technical accuracy is needed to measure a dose. A measuring device is needed for administration. It is an unstable system, which can be made more stable by the presence of a surfactant. Preparation needs to be shaken well before use. An emulsion is a two-phase system that has at least one immiscible liquid (one incapable of being and remaining mixed), called the dispersed phase, distributed in another liquid or solid, called the dispersion medium, in the form of tiny droplets. It is possible to include two incompatible ingredients, one in each phase of the emulsion. Emulsions are a specific type of colloid, or a mixture where microscopic particles are dispersed without being dissolved throughout another substance. An emulsion is defined as a mixture of two or more normally immiscible (unmixable) liquids. Unpalatable oil-soluble drugs can be administered in a palatable form. Unpalatable oils can be administered in a palatable form. Emulsion: Definition, Advantages, Disadvantages – Pharmaceutics NotesĪn 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 an emulsifying agentĪn 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 immiscibleĪdvantages and disadvantages of emulsions
0 Comments
Leave a Reply. |