Description
Round-bottom flask with standard ground joint NS 14/23, LBG 3.3, is laboratory glassware for heating, distillation, reaction and receiving duties at the 25 ml scale. It is produced from borosilicate glass 3.3 (LBG 3.3), valued for chemical durability and resistance to thermal stress in day-to-day lab use. Nominal volume is 25 ml (0,025 l), suitable for small preparative work, sample work-up and compact distillation or collection trains. The NS 14/23 ground joint delivers a standardised connection to condensers, adapters, stoppers and complementary jointed apparatus. Supplied as a pack of 12 pieces from manufacturer Labbox, the set is practical for parallel runs, classroom practicals and bulk replenishment of bench stock. Pack net weight is 0,192 kg. The spherical body aids even heat transfer under mantles or baths, while clear LBG 3.3 glass enables continuous visual control of the contents. Typical use spans round-bottom, ground-joint, distillation and receiving flask applications in research, analytical and teaching environments.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 12 pc(s)
- Material: Borosilicate glass 3.3
- Nominal volume: 25 ml (0,025 l)
- Joint size: NS 14/23
- Product type: LBG
- EAN: 8434868005730
- GTIN: 08434868005730
- Technical Information Sheet:
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Questions about Ballon à distiller fond rond, LBG 3.3, embouchure 14/23, 25 ml, 12 pièces
What is this article?
Ballon à distiller fond rond, LBG 3.3, embouchure 14/23, 25 ml, 12 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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Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.