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Chemistry · Glossary

What is Micelle, critical micelle concentration, aggregation number?

Also known as: micelle · critical micelle concentration · aggregation number

Definition 17.11 University Chemistry — Year 3 · Chapter 17 — Interfaces, Surfactants and Colloids

A micelle is an aggregate of surfactant molecules in solution whose hydrophobic tails form a liquid-like core shielded from water by the heads. The critical micelle concentration (CMC) is the concentration above which micelles form; their mean number of molecules is the aggregation number.

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