GAS BUBBLERS

Laboratory Gas Bubblers

Gas bubblers also known as gas washing bottles or gas traps—are essential when it comes to humidifying, drying, neutralizing, or preventing backflow of vapors in closed reaction lines. At Pobel, you’ll find a selection of laboratory gas bubblers made from borosilicate glass, designed to integrate seamlessly with controlled atmosphere systems, Schlenk lines, or advanced synthesis setups.

What is a Gas Bubbler and What is it Used For?

A gas bubbler is a glass vessel with gas inlet and outlet connections, where gas bubbles through a liquid (or solid agent) that conditions it before entering or exiting the reaction system. With a gas bubbler, you can:

• Precisely humidify or dry gases.

• Retain contaminants or unwanted vapors.

• Prevent gas backflow into reactors.

• Neutralize corrosive gases before they are released.

• Maintain stable inert atmospheres in gas lines.

Technical Features of Our Laboratory Gas Bubblers

• Borosilicate 3.3 glass, resistant to thermal and chemical shocks.

• Variable capacities adapted to different gas flow rates.

• Internal tube with a dispersion tip for uniform bubbling.

• Standard connections with ground glass joints for compatibility with hoses or glassware.

• Robust design and stable base for easy vertical or horizontal setup.

• Options with non-return valves, safety stopcocks, or vacuum adapters available.

Types of Gas Bubblers by Application

• Drying Bubblers
  Filled with desiccants like CaCl₂ or concentrated H₂SO₄ to remove moisture from gases.

• Humidifying Bubblers
  Saturate gases with water vapor or solvents—essential in biological processes sensitive to dryness.

• Neutralizing Bubblers
  Allow acidic or basic gases to bubble through neutralizing solutions, preventing hazardous emissions.

• Anti-Backflow Traps
  Act as safety valves to prevent reverse flow, protecting both reagents and equipment.

Common Applications

• Water- or oxygen-sensitive reactions in controlled atmospheres.

• Inert gas (N₂, Ar) or reactive gas (H₂, Cl₂) lines.

• Drying or gas purification systems upstream of desiccators.

• Neutralization of gaseous effluents in environmental analysis laboratories.

• Fermentations and cultures requiring stable gasification.

Advantages of Choosing Pobel Gas Bubblers

• Enhanced safety for both operators and equipment.

• Stable and reproducible reaction conditions.

• Compatibility with a wide range of conditioning liquids or solids.

• Easy cleaning thanks to wide openings and chemically resistant glass.

• Expert technical support to help select the optimal volume, connection, and design.

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Need guidance on integrating laboratory gas bubblers into your gas lines? Contact our specialists for technical advice and recurring supply options.