The pre-emulsions consisted of poly(dimethylsiloxane) oil (volume fraction φ) in water stabilized with a nonionic surfactant (nonylphenol with 7 ethylene oxide ... |
In this method the oil is first triturated with gum with a little amount of water to form the primary emulsion. The trituration is continued till a ... |
On small scale extemporaneous preparation of emulsions, three methods may be used which are continental or dry gum method, English or wet gum method, and the ... |
The methods commonly used to prepare emulsions can be divided into two categories. A) Trituration Method. This method consists of dry gum method and wet gum ... |
REQUIREMENT FOR GOOD EMULSION: 1. All equipment used must be clean and dry. 2. A primary emulsion should be prepared first, which is thick , stable emulsion. |
Prepared by simple mixing of equal volumes of Oil and Lime water. ✓ Emulsifying agent used is Calcium salt of free fatty acids. E.g. Olive Oil + Oleic acid (FAA) ... |
❖ There are two main steps in the preparation of emulsion (dry and wet). 1) Preparation of primary emulsion which is thick, creamy and stable emulsion. Its ... |
The initial step in preparation of an emulsion is selection of the emulsifier. To be useful in a pharmaceutical preparation, the emulsifying agent: 1. must be ... |
As mentioned before, to prepare an emulsions oil, water, surfactant, and energy are needed. This can be considered from a consideration of the energy required ... |
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