Description
Flat-bottom flask 250 ml with socket NS 29/32 is a robust laboratory vessel fabricated from borosilicate glass 3.3 for general laboratory use. The flask delivers a nominal volume of 250 ml and incorporates a precision ground joint socket of NS 29/32, guaranteeing compatible, secure connections with standard jointed glassware including condensers, still heads and stoppers. The flat base ensures stable placement on benches, heating mantles or stirrers without extra support. Weighing 0,105 kg net, it balances handling convenience with the excellent chemical resistance and thermal stability of borosilicate glass 3.3. Suitable for larger-scale reactions, solvent recovery, sample preparation and intermediate storage, the vessel is frequently employed in synthetic chemistry, analytical laboratories and educational settings. Produced by manufacturer Rettberg, this standing flask adheres to common laboratory glassware standards, facilitating modular assembly of apparatus. Its durable construction withstands repeated heating and cooling cycles as well as exposure to typical laboratory chemicals, providing a practical and long-lasting solution for daily experimental work.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 250 ml
- Material: Borosilicate glass 3.3
- Joint size: NS 29/32
- Country of origin: Germany
- Technical Information Sheet:
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Questions about Flat bottom flask, 250 ml, socket size 29/32
What is this article?
Flat bottom flask, 250 ml, socket size 29/32 is the article on this page. Luminix Health distributes Rettberg 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.