Distillation Apparatus (UEB Uncontracted)

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Synopsis
This page shows six items of laboratory equipment used for separating liquids with different boiling points. They are seen from the side in cross section. Each image is labelled. There is a locator dot and title shown, which will be at the top left of the page when it is the correct way up.Condensers - On the left of the page, from left to right, are an Allihn condenser, a coil condenser and a Graham condenser. Each of them has a small tube inside a larger tube. In the Allihn and Graham condensers, the larger, outside tube carries a coolant, usually water or antifreeze. The coolant flows from the bottom left to the top left of the image. Arrows show the direction of flow. Hot vapour is passed through the smaller, inner tube. It cools and condenses to a liquid that is collected at the bottom. The inner tube of the Allihn condenser has a series of bulbs along its length, to increase its surface area and speed up the exchange of heat. The inner tube of the Graham condenser is coiled, also to increase its surface area. The coil condenser is a variant of the Graham condenser except the small coiled, inner tube carries the coolant and the hot vapour condenses in the larger, outside tube.Alembic Retort: This image in the top left of the page shows an alembic retort. It was used as part of an alembic still by the Ancient Greeks. The retort is being heated by a Bunsen burner down the page.Cold finger:This image is to the left of the Bunsen burner. Coolant (often water) flows into the cold finger in the top right of the image and out of the top left. The direction of flow is shown by arrows. The cold finger provides a cold surface and can be use as a simple condenser or in a sublimation apparatus.
Copyright:
2012

Book Details

Book Quality:
Publisher Quality
Publisher:
RNIB Bookshare
Date of Addition:
Copyrighted By:
RNIB Bookshare
Adult content:
No
Language:
English
Has Image Descriptions:
No
Categories:
Nonfiction, Science
Grade Levels:
Year 10 - 4th Form - KS4, Year 11 - 5th Form - KS4
Submitted By:
Bookshare Staff
Usage Restrictions:
This is a copyrighted book.

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