Description
Round-bottom flask with standard ground joint NS 29/32 is laboratory glassware for distillation, reaction work and collection duties. It is made from high-quality borosilicate glass LBG 3.3, chosen for thermal and chemical durability in routine and advanced laboratory procedures. The spherical body supports even heat distribution when used with heating mantles or baths, while the NS 29/32 joint gives a secure, interchangeable connection to condensers, adapters and other ground-joint apparatus. Nominal volume is 250 ml (0,25 l). Manufacture follows DIN/ISO 4797 and the American Pharmacopeia (USP), supporting standardised dimensional and quality expectations for jointed glassware. Supplied as a convenient pack of 10 pieces under the GLASSCO line from manufacturer Labbox, the set suits teaching laboratories, research groups and quality-control environments that need multiple identical flasks. Typical applications include organic synthesis setups, solvent recovery and use as distillation or receiving flasks within standard ground-joint assemblies. Net weight of the pack is 1,510 kg. The borosilicate 3.3 composition withstands common laboratory temperature changes and reagents encountered in preparative and analytical workflows.
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 29/32
- Product type: GLASSCO
- EAN: 8434868006089
- GTIN: 08434868006089
- Technical Information Sheet:
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Questions about Ballon à fond rond, GLASSCO, col 29/32, 250 ml, 10 pièces
What is this article?
Ballon à fond rond, GLASSCO, col 29/32, 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.