Which term is defined as a material used to disperse one liquid in another?

Which term is defined as a material used to disperse one liquid in another?

• A. Detergents
• B. A sticker
• C. An emulsifier
• D. Surfactant

Answer: (C)

Stabilizing mixtures of immiscible liquids relies on an emulsifier. An emulsifier is a material designed to disperse one liquid in another by lowering the interfacial tension between the two liquids and forming a protective film around droplets to keep them from merging. It often acts as a surfactant with both water-loving and oil-loving properties, which lets it position at the boundary between the liquids and stabilize the drop-down of one phase within the other. In road maintenance, for example, asphalt emulsions use emulsifiers to disperse asphalt in water and keep the droplets from coalescing as they’re sprayed. Detergents can emulsify oils for cleaning but aren’t primarily about creating stable, long-lasting emulsions. A sticker isn’t related to liquid dispersion. A surfactant is the broader class that includes emulsifiers, but the term that specifically means a material used to disperse one liquid in another is emulsifier.

Stabilizing mixtures of immiscible liquids relies on an emulsifier. An emulsifier is a material designed to disperse one liquid in another by lowering the interfacial tension between the two liquids and forming a protective film around droplets to keep them from merging. It often acts as a surfactant with both water-loving and oil-loving properties, which lets it position at the boundary between the liquids and stabilize the drop-down of one phase within the other. In road maintenance, for example, asphalt emulsions use emulsifiers to disperse asphalt in water and keep the droplets from coalescing as they’re sprayed. Detergents can emulsify oils for cleaning but aren’t primarily about creating stable, long-lasting emulsions. A sticker isn’t related to liquid dispersion. A surfactant is the broader class that includes emulsifiers, but the term that specifically means a material used to disperse one liquid in another is emulsifier.