What is the internal phase of an emulsion?

What is the internal phase of an emulsion?

• A. The external phase
• B. The continuous phase
• C. Dispersed phase
• D. Interfacial layer

Answer: (C)

Emulsions have two immiscible liquids where one is broken into droplets and dispersed within the other. The phase that forms those droplets is the internal phase, also called the dispersed phase. The liquid surrounding the droplets is the external (continuous) phase. The boundary around droplets is the interfacial layer, stabilized by emulsifiers, not an additional phase. So the internal phase is simply the dispersed phase. For example, oil droplets in water represent an oil internal/dispersed phase, while water droplets in oil would have water as the internal/dispersed phase.

Emulsions have two immiscible liquids where one is broken into droplets and dispersed within the other. The phase that forms those droplets is the internal phase, also called the dispersed phase. The liquid surrounding the droplets is the external (continuous) phase. The boundary around droplets is the interfacial layer, stabilized by emulsifiers, not an additional phase. So the internal phase is simply the dispersed phase. For example, oil droplets in water represent an oil internal/dispersed phase, while water droplets in oil would have water as the internal/dispersed phase.