Boiling Flask Round Bottom, Socket Joint, Short Neck, Borosilicate Glass (BORO 3.3)

Description

Boiling Flask Round Bottom, Socket Joint, Short Neck, Borosilicate Glass BORO 3.3 is designed for controlled boiling, heating, reflux, distillation, evaporation, and general laboratory preparation where reliable thermal performance and chemical resistance are required. The round bottom shape supports even heat distribution across the flask body, making it suitable for use in compatible heating mantles, clamped assemblies, and laboratory glassware setups that require stable heating of liquids.

Manufactured from BORO 3.3 borosilicate glass, this boiling flask provides low thermal expansion, strong resistance to thermal shock, and dependable chemical durability for routine laboratory use. BORO 3.3 glass is specified under ISO 3585, which defines the properties of borosilicate glass 3.3 used for laboratory glassware, glass plant, pipelines, and fittings. This makes the flask suitable for laboratories that require glassware with recognised material quality and stable performance during heating and chemical handling.

The glass quality is also aligned with the performance expectations of ASTM E438 Type I, Class A, which covers low-expansion borosilicate glass commonly used in laboratory apparatus. ASTM E438 includes glass quality properties such as linear thermal expansion, annealing point, softening point, density, and chemical durability, helping customers identify glassware suited to scientific and analytical laboratory applications.

The short neck design provides a compact connection point, while the socket joint allows the flask to be connected with compatible cone joint glassware such as condensers, adapters, receivers, and distillation components. For this product type, ISO 4797:2015 is also relevant because it specifies requirements for boiling flasks with conical ground joints for general laboratory purposes. This supports stronger technical positioning for a round bottom boiling flask with a socket joint and short neck format.

The clear borosilicate glass body allows easy observation of liquid level, boiling behaviour, colour change, and reaction progress during laboratory work. Its round bottom construction is especially useful where uniform heating and smooth liquid movement are required, while the short neck helps reduce unnecessary height in assembled apparatus, making it practical for bench, fume hood, teaching, and research environments.

LabChoice Australia supplies BORO 3.3 laboratory glassware for Australian schools, universities, research facilities, and industrial laboratories that need dependable glassware for heating, boiling, reflux, and distillation workflows. This round bottom boiling flask offers a practical combination of heat-resistant glass, socket joint compatibility, and compact short neck design for everyday laboratory use.