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Boiling tube

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A boiling tube looks much like a test tube.

A boiling tube is a large tube made of glass, which is used in laboratory to strongly heat substances. A boiling tube is a scaled-up test tube, but larger in size. This larger size allows substances to boil freely inside a boiling tube.

Boiling tubes can also be used as a replacement for test tubes specially when a larger volume is desired.

Boiling tubes are commonly made from Pyrex glass which can tolerate high temperatures.

[[Category:laboratory equipme