Apostaxis (Distillation) is a method of separating mixtures based on differences in volatility of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction. It is used to separate crude oil into more fractions for specific uses such as transport, power generation and heating. Water is distilled to remove impurities, such as salt from seawater. Air is distilled to separate its componentsnotably oxygen, nitrogen, and argon for industrial use. If you came so far, please now hit the "play" button! Audiolaboratory.org