Gas bubbler
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A gas bubbler is a piece of laboratory glassware used in Schlenk lines and other setups where a positive gas pressure is used/produced. Often, it is used to visually determine/regulate the amount of inert gas flowing through a system.
Contents
General
The gas bubbler consists of a glass bulb filled with a small amount of fluid - usually glycerol, mineral oil or silicone oil. Such devices are also called oil bubblers. Mercury was used in the past. The inlet to the bulb is connected to a ground glass joint, while the outlet is vented to the air.
Availability
Gas bubblers can be bought from lab suppliers.
Similar equipment can be purchased from aquarium shops.
DIY gas bubbler
A small gas washing bottle can be used instead of a gas bubbler.
