Boiling 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.
Boiling tube is also known as Hard Glass Tube
Boiling Tube Media
Louis Lumière with a microscope and some test tubes
Samples of human blood collected for blood tests
An illustration of a setup using an ignition tube. The ignition tube is being heated by the Bunsen burner on the left, with the heated gas escaping from the tube to the pan via the delivery tube on top and at right.
