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Questions and Answers
What is creaming in emulsions?
What is creaming in emulsions?
- The separation of emulsion into two regions, one rich in the dispersed phase than the other (correct)
- The process of breaking the emulsion into smaller droplets
- The merging of emulsified particles to form large particles
- The aggregation of dispersed particles without fusion
What is coalescence in emulsions?
What is coalescence in emulsions?
- The process by which emulsified particles merge to form large particles (correct)
- The destruction of the film surrounding the particles
- The separation of emulsion into two regions, one rich in the dispersed phase than the other
- The aggregation of dispersed particles without fusion
How can creaming of emulsions be avoided?
How can creaming of emulsions be avoided?
- Production of small droplet size emulsion by efficient emulsifying agent (correct)
- Promoting the aggregation of dispersed particles
- Reducing the viscosity of the continuous phase
- Increasing the density difference between two phases
How can phase inversion in an emulsion be achieved?
How can phase inversion in an emulsion be achieved?
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What is the major factor to prevent coalescence in emulsions?
What is the major factor to prevent coalescence in emulsions?
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How can upward and downward creaming in emulsions be classified?
How can upward and downward creaming in emulsions be classified?
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What is the purpose of adding α – tocopherol to emulsions?
What is the purpose of adding α – tocopherol to emulsions?
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Which type of emulsion is more stable in terms of microbial instability?
Which type of emulsion is more stable in terms of microbial instability?
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What is the effect of ionic surfactants on emulsions with opposite charged material?
What is the effect of ionic surfactants on emulsions with opposite charged material?
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How can the stability activity of emulsions be assessed?
How can the stability activity of emulsions be assessed?
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