Description
Flat-bottom flask 500 ml with standard ground joint is a robust laboratory vessel intended for larger-scale heating, reaction and preparation work that benefits from a broad, stable base. Manufactured from borosilicate glass 3.3, the flask offers the chemical durability and thermal resistance needed for everyday laboratory operations and complies with DIN EN ISO 4797. It features a short neck and a standard ground-joint socket NS 29/32, providing reliable, interchangeable coupling to condensers, adapters and other jointed apparatus. The 500 ml nominal volume accommodates medium- to larger-volume distillations, reflux reactions, extractions and concentration steps performed on hotplates or heating mantles. The flat bottom ensures secure standing on benches and heating surfaces, while the short-neck geometry aids charging, sampling and cleaning. These flasks are delivered in cartons of 10 pieces from manufacturer Marienfeld and are suitable for teaching, research and quality-control environments that demand dimensional consistency and material reliability. Optical clarity of the glass permits unobstructed observation of contents throughout thermal cycling and chemical processing.
This article is part of Flat-bottom flasks, in Beakers & flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 500 ml
- Joint size: NS 29/32
- Material: Borosilicate glass 3.3
- Standard: DIN EN ISO 4797
- EAN: 4250317311689
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Questions about Boiling flasks 500 ml with round bottom and ground joint
What is this article?
Boiling flasks 500 ml with round bottom and ground joint is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Flat-bottom flasks, inside Beakers & flasks, in Labware.
A flat-bottom flask stands on the bench without a cork ring, which a round-bottom flask will not do. It is for heating on a plate and for simple setups. It is a poorer shape than a round bottom for even boiling under vacuum.
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 Flat-bottom flasks. The catalogue is Labware.
Shelves beside this one are Round-bottom flasks, Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, 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.
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.