Description
Round-bottom flask with standard ground joint NS 24/29 is laboratory glassware intended for distillation, reaction and receiving applications. Fabricated from high-quality borosilicate glass LBG 3.3, it delivers the thermal shock resistance and chemical durability expected in everyday laboratory practice. The 250 ml nominal volume (0,25 l) and spherical body promote uniform heating and efficient mixing with heating mantles or oil baths. The NS 24/29 ground joint ensures a reliable, interchangeable fit to condensers, dropping funnels, adapters and other jointed components. Production is in accordance with DIN/ISO 4797 and the American Pharmacopeia (USP), aligning with common laboratory standards for ground-joint flasks. Available as a pack of 10 pieces in the GLASSCO range from manufacturer Labbox, this set is practical for teaching labs, research teams and routine preparative work that consumes several flasks. Use cases span organic synthesis, solvent recovery and general distillation or collection setups built around NS 24/29 connections. Net weight of the pack is 1,524 kg. Borosilicate 3.3 construction supports repeated heating cycles and contact with typical laboratory reagents without specialised coatings or treatments.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pcs
- Material: Borosilicate glass 3.3
- Nominal volume: 250 ml
- Joint size: NS 24/29
- Product type: GLASSCO
- EAN: 8434868006096
- GTIN: 08434868006096
- Technical Information Sheet:
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Questions about Ballon à fond rond, GLASSCO, col 24/29, 250 ml, 10 pièces
What is this article?
Ballon à fond rond, GLASSCO, col 24/29, 250 ml, 10 pièces is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Ballons à fond rond, inside Béchers & fioles, in Matériel de laboratoire.
A round-bottom flask is the heating flask of a distillation or a reflux. The curved wall takes the heat, and the ground neck connects to a still head or a condenser. The joint size, not only the volume, has to match the rest of the set.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Béchers & fioles. The sub-category is Ballons à fond rond. The catalogue is Matériel de laboratoire.
Shelves beside this one are Béchers, Fioles Erlenmeyer, Récipients de réaction & récipients à double enveloppe, Fioles à fond plat, Fioles (autres) and Accessoires pour béchers & fioles.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.