Filtration Flask / Vacuum Flask or Büchner Flask

This side-arm filtration flask, also known as a Büchner flask, collects filtrate in a compatible laboratory filtration assembly. Choose the listed capacity and Conical or Round option to suit your setup.

Match the flask with an appropriate funnel, adapter and tubing before assembling your filtration station. Its side arm provides a connection point for suitable tubing.

Product options

• Material: borosilicate glass, as listed.
• Construction: thick-walled glass with a side arm, as listed.
• Selectable capacities: 100 mL, 250 mL, 500 mL, 1000 mL and 2000 mL.
• Selectable shape labels: Conical and Round.

Applications

Compatible solid-liquid separation and teaching filtration procedures. Use for vacuum-assisted filtration only when the supplied model is expressly rated for the intended vacuum conditions.

Compatibility and ratings

Neck dimensions, side-arm diameter, wall thickness and maximum permissible vacuum are not documented. Confirm these specifications and the support requirements for the chosen shape. Thick glass alone does not establish a safe vacuum rating. Funnels, adapters, tubing and pumps are not specified as included.

Handling and care

Inspect for cracks, chips and scratches before use, support the assembly securely and follow the manufacturer's instructions and laboratory precautions. Check chemical compatibility and avoid sudden temperature changes. Do not use under positive pressure or assume suitability for solvent recovery without documented approval.