Description
Round-bottom flask with narrow neck, 250 ml, is a laboratory vessel supplied as a pack of 10 pieces for general bench-scale work. The narrow neck limits solvent loss and facilitates reliable closure or coupling to common lab connectors, while the 250 ml capacity covers medium-scale reactions, dilutions and preparative steps in research and teaching labs. Produced by manufacturer Dinkelberg and originating in the Czech Republic, these items fall under laboratory materials classification. A round-bottom shape supports even heating in baths or mantles and enables smooth mixing by swirling. Narrow-neck round-bottom flasks are frequently selected for reflux, distillation and temporary holding of process solutions where a reduced opening is preferred. The ten-piece pack delivers matched 250 ml units for parallel experiments, method development or classroom sets. Choose this pack when a mid-range working volume together with a narrow neck is required for chemical, biochemical or educational laboratory practice.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Product type: Round-bottom flask
- Neck design: Narrow neck
- Capacity: 250 ml
- Country of origin: Czech Republic
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Questions about Flask with round bottom, narrow-neck, 250ml, 10/PK
What is this article?
Flask with round bottom, narrow-neck, 250ml, 10/PK is the article on this page. Luminix Health distributes Dinkelberg 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. 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.