Büchner Flask with Side Arm and Ground Glass Socket

The Buchner Flask with Side Arm and Ground Glass Socket from Osmosis Scientific is a precision-engineered laboratory flask designed for vacuum filtration, aspiration, and fluid separation workflows. Crafted from borosilicate 3.3 glass, this Buchner flask delivers superior thermal shock resistance and chemical durability — essential for demanding laboratory environments including analytical labs, research facilities, and industrial applications.

Its conical body with a side arm enables smooth vacuum connection via flexible tubing, while the ground glass socket provides a secure and leak-resistant interface for vacuum apparatus or adapters. The design supports efficient filtration when paired with Büchner funnels and compatible vacuum pumps, helping streamline sample prep and fluid separation tasks.

The flask’s robust borosilicate construction offers excellent resistance to corrosive reagents, acids, alkalis, and solvents, making it safe for use with a variety of chemical media. Thermal shock stability ensures the flask can tolerate rapid temperature changes often encountered during filtration or heating processes.

Available in a range of commonly used capacities — 100 ml, 250 ml, 500 ml, 1000 ml, and 2000 ml — this Buchner flask is suitable for both small-scale laboratory filtration and larger volume separation workflows. Its stable flat base ensures secure placement on lab benches and vacuum stands, improving lab safety and operational efficiency.