D

Distillation

T_bp1 < T_bp2; separation based on difference in vapour pressure
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Formula / NotationT_bp1 < T_bp2; separation based on difference in vapour pressure
Also Known AsFractional distillation, simple distillation, vacuum distillation, distillation process

What is Distillation?

A separation technique that exploits differences in volatility of components in a liquid mixture. The mixture is heated to vaporize the more volatile component, which is then condensed and collected. Types include simple, fractional, steam, and vacuum distillation.

Formula & Notation

T_bp1 < T_bp2; separation based on difference in vapour pressure

Other Names / Synonyms: Fractional distillation, simple distillation, vacuum distillation, distillation process

Properties & Characteristics

Distillation is the separation technique that uses differences in volatility (vapour pressures) of components to separate liquid mixtures. The mixture is heated; the more volatile component vaporises preferentially, is condensed, and collected as distillate. Types include: simple distillation (boiling points differ >25°C), fractional distillation (close boiling points, uses fractionating column), steam distillation (immiscible liquids), vacuum distillation (high boiling points), and azeotropic distillation.

Uses & Applications

Distillation is the world's largest-scale industrial separation process: petroleum refining (crude oil → petrol, diesel, jet fuel, naphtha), production of distilled spirits, water purification, solvent recovery, and isolation of organic synthesis products.

Safety Information

Distillation of flammable solvents requires flame-free heat sources (heating mantles, water baths), adequate ventilation, and proper earthing to prevent static discharge. Never distil to dryness unless intended. Superheating and explosive bumping require boiling chips or magnetic stirring.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Distillation
Formula T_bp1 < T_bp2; separation based on difference in vapour pressure
Synonyms Fractional distillation, simple distillation, vacuum distillation, distillation process

Frequently Asked Questions

A separation technique that exploits differences in volatility of components in a liquid mixture. The mixture is heated to vaporize the more volatile component, which is then condensed and collected. Types include simple, fractional, steam, and vacuum distillation.

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