Description
Round-bottom flask, white graduated, 250 ml with NS 24/29 ground joint is a heat-resistant laboratory flask manufactured from durable borosilicate glass in accordance with DIN EN ISO 4797. The thick wall, heavy base and reinforced rim minimise the risk of breakage during cleaning, handling and transport. Precisely ground NS necks with a smooth interior ensure a secure, leak-proof connection for distillation trains, receivers and reaction assemblies. Clear volume markings and inscriptions are applied in white enamel for lasting visibility. Delivered without stopper, this 250 ml round-bottom flask from manufacturer ISOLAB Laborgeräte is well suited to organic synthesis, solvent distillation and sample collection where a stable NS 24/29 joint is preferred. Its robust construction and standardised geometry support reliable everyday use in research, teaching and industrial laboratories requiring consistent borosilicate glassware performance.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Capacity: 250 ml
- Ground joint: NS 24/29
- Material: Borosilicate glass
- Graduation: White enamel
- EAN: 4250362624628
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Questions about flask - round bottom - glass - clear - NS neck - 250 ml - NS24/29
What is this article?
flask - round bottom - glass - clear - NS neck - 250 ml - NS24/29 is the article on this page. Luminix Health distributes ISOLAB 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
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.
