What is fractional distillation? What is …
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Yogita Ingle 7 years, 1 month ago
Fractional distillation is a process by which components in a chemical mixture are separated into different parts (called fractions) according to their different boiling points. Fractional distillation is used to purify chemicals and also to separate mixtures to obtain their components.
When the boiling points of the two liquids are quite close (difference less than 20-25°C) the separation is not successfully affected by using simple distillation process but is affected by fitting the flask with a fractionating column.
A fractionating column is a long tube provided with obstructions or packed with glass beads. The obstructions provided slows down the passage of vapours upwards and that of the liquid downwards.
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