Difference between revisions of "Short-path distillation apparatus"

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A short-path distillation apparatus used to distill phenol

A short-path distillation apparatus is a special type of distillation apparatus, used to distill compounds with a high boiling point, usually under vacuum, when the distillate travels a short distance, often only a few centimeters. It is often used with a cow adapter, though for distilling a single compound, this is not necessary.

General

The apparatus consists of a T-shaped borosilicate glass tube with a lower curved glass tube with male ground glass joint which is connected to a round-bottom flask, an upper female joint for the thermometer and the main body which has a short straight condenser, a vacuum hose adapter and a long thin tube, where the distillate flows into the receiving flask or in a cow adapter, which transfers it to other flasks.

Operation

To be added

Availability

You can buy the short-path distillation apparatus from lab suppliers or online, though it's not cheap.

References

Relevant Sciencemadness threads

• Short Path Distillation Experience Needed
• What is the advantage of short path distillation over normal?
• Looking for a short path or variable reflux distillation head
• Short-path distillation head, three-flask cow, drying tube, and 10 flasks, all 14/20, $80 + $12 S&H on eBay
• micro distillation