Description
Round-bottom flask with standard ground joint NS 29/32 is a laboratory flask manufactured from borosilicate glass 3.3, delivered without stopper and finished with a white inscription. It has a nominal volume of 50 ml and a socket joint of NS 29/32, produced in accordance with DIN EN ISO 4797 to ensure compatibility with corresponding cones and adapters. The round bottom promotes even heat distribution and effective stirring during chemical reactions, distillations and sample preparation. Borosilicate glass 3.3 delivers the expected resistance to thermal stress and common laboratory reagents. White marking supports clear identification on the bench. Supplied as a pack of 10 pieces from manufacturer Hecht, the flasks fit standard ground-joint apparatus for flexible assembly of condensers, dropping funnels and multi-piece setups. The open neck without stopper allows free choice of stoppers, septa or open configurations as required by the method. Intended for heating baths, mantles and general wet-chemistry applications, this design balances standardised joint performance with robust everyday laboratory service.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Volume: 50 ml
- Joint size: NS 29/32
- Material: Borosilicate glass 3.3
- Inscription: White
- Standard: DIN EN ISO 4797
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Questions about Flasks, boiling, round bottom with socket, Boro 3.3, DIN EN ISO 4797, printing
What is this article?
Flasks, boiling, round bottom with socket, Boro 3.3, DIN EN ISO 4797, printing is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Labware.
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 Beakers & flasks. The sub-category is Round-bottom flasks. The catalogue is Labware.
Shelves beside this one are Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
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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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.