Definition

Noun: - A separation process for liquid mixtures: Fractional distillation is a specific type of distillation used to separate a mixture of two or more liquids with different boiling points. It involves repeated vaporization and condensation within a fractionating column, allowing for the collection of purified components, or "fractions," at different temperatures.

Usage

Fractional distillation is a core technique in industrial chemistry and laboratory settings. It is used when the boiling points of the components in a liquid mixture are relatively close together, making simple distillation ineffective.

Examples

• Noun:
  • Crude oil is refined into useful products like gasoline and kerosene through fractional distillation.
  • In the organic chemistry lab, we used fractional distillation to separate the components of the alcohol mixture.
  • The purity of the final product depends on the efficiency of the fractional distillation process.

Advanced Usage

• "to perform/conduct/carry out fractional distillation": This phrasing describes the action of using the technique.
  • The researchers needed to perform fractional distillation on the sample to isolate the compound.

Variants and Related Words

• Distillation (n): The broader process of purifying a liquid or separating components of a liquid mixture by heating it to create vapor and then cooling the vapor to get a liquid. Fractional distillation is a subtype of this.
• Fractionate (v): To separate (a mixture) into its component parts, as by distillation.
• Fractionating column (n): The vertical column used in fractional distillation, which provides surface area for repeated condensation and vaporization cycles.
• Fraction (n): One of the portions or components separated by fractional distillation.

Synonyms

• Fractionation (especially when referring to separation by distillation).
• Rectification (in technical/engineering contexts).

Related Phrases/Idioms

(This term is a precise scientific/technical term and is not commonly used in idiomatic expressions.)

Noun

1. fractionation of a liquid by distillation