Round/Flat bottom with standard joint 500 ml

A Round Bottom Flask 500 ml with Standard Joint is a laboratory glass vessel designed for heating, mixing, and carrying out chemical reactions with a half-liter capacity. It is made from high-quality borosilicate glass, which provides resistance to thermal shock and chemical corrosion. The flask features a spherical body for uniform heating, while its narrow neck comes fitted with standard ground glass joints (commonly 24/40 or 24/29), ensuring leak-proof and secure connections to other lab apparatus.

Key specifications:

Capacity: 500 ml

Material: Borosilicate glass (ASTM Type 1, Class A, BORO 3.3)

Design: Spherical round bottom for efficient heat distribution; narrow neck with standard 24/29 or 24/40 ground glass joint

Standards: Complies with DIN ISO 1773, DIN/ISO 4797, and USP standards

Applications: Used for boiling, distillation, reflux, and chemical synthesis in scientific, educational, and industrial labs

Dimensions: Outer diameter ~105 mm; height ~165 mm

The standard joint allows seamless integration with condensers, stoppers, and adapters, making this flask crucial for precision laboratory work.

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