

Boiling Flask Flat Bottom, Socket Joint, Short Neck, Borosilicate Glass (BORO 3.3)
From $8.00 (Ex GST)
- Restricted Item – EUD Required: For flask sizes 500 mL or larger, an End User Declaration (EUD) must be completed. A valid photo ID (such as a Passport, Driver Licence, or Proof of Age Card) is also required. Orders will not be shipped until all documentation is received and approved.
- Flat base ensures stable heating on hotplates
- Socket joint allows secure glassware connections
- Short neck saves space in compact lab setups
- Ideal for distillation, reflux, and chemical reactions
- Used in teaching, research, and pharmaceutical labs
- Made from LabChoice BORO 3.3 glass – High quality
- Description
Description
Boiling Flask Flat Bottom, Socket Joint, Short Neck, Borosilicate Glass (BORO 3.3) is designed for safe heating, boiling, and reaction work where thermal stability, chemical resistance, and secure ground joint connections are essential. The flat bottom allows the flask to stand upright on the bench without a cork ring, supporting easier filling, weighing, and temporary storage. A short neck provides a compact profile that improves clearance in fume cupboards and heating setups, while the socket (female) ground joint enables reliable integration with condensers, adapters, and reflux assemblies for distillation, synthesis, and solvent recovery workflows.
Manufactured from high quality LabChoice BORO 3.3 borosilicate glass, the flask offers excellent thermal stability, low thermal expansion, and strong resistance to a wide range of laboratory reagents and solvents. BORO 3.3 glass performance aligns with recognised borosilicate standards such as ISO 3585 and ASTM E438 Type I, supporting dependable durability under repeated heating and cooling cycles and daily laboratory handling. Smooth internal surfaces minimise residue retention and support efficient cleaning between runs, while consistent wall thickness improves robustness for routine heating applications.
The precision ground socket joint supports a secure, low leak connection when properly assembled and clamped, helping maintain stable reflux and reduce solvent loss. This makes the flask suitable for heating and boiling steps in organic chemistry, sample digestion, reagent preparation, and general laboratory procedures requiring controlled connection to condensers or addition funnels. For best practice, use appropriate heating methods, avoid sudden temperature changes, and support glassware with stands and clamps to reduce joint stress.
Supplied by LabChoice Australia, this flat bottom boiling flask is widely used across Australian schools, universities, research institutes, and industrial quality control facilities where robust BORO 3.3 construction and dependable joint compatibility are required.
| Item Code | Nominal Capacity (ml) | Socket Size | Approx. overall height (mm) | Dia. (mm) | Pack |
| LC-03-BF1001 | 25 | 19/26 | 85 | 40 | 1 |
| LC-03-BF1002 | 50 | 19/26 | 103 | 51 | 1 |
| LC-03-BF1003 | 100 | 24/29 | 103 | 64 | 1 |
| LC-03-BF1004 | 250 | 24/29 | 130 | 85 | 1 |
| LC-03-BF1005 | 500 | 24/29 | 160 | 105 | 1 |
| LC-03-BF1006 | 1000 | 34/35 | 187 | 131 | 1 |
| LC-03-BF1007 | 2000 | 24/29 | 230 | 166 | 1 |
| LC-03-BF1008 | 3000 | 24/29 | 260 | 185 | 1 |
| LC-03-BF1009 | 5000 | 24/29 | 305 | 223 | 1 |
| LC-03-BF1010 | 10000 | 24/29 | 380 | 40 | 1 |
| LC-03-BF1011 | 20000 | 24/29 | 480 | 40 | 1 |
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Our Reviews
Emma Roberts
4 months ago
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
Michael Grant
5 months ago
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
Sarah Nguyen
7 months ago
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
Dr. Emily Hart – Senior Research Scientist
8 months ago
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
Mark Stevens
9 months ago
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab
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