Description
Round-bottom flask with NS 45/40 is a laboratory glass vessel with a nominal volume of 1000 ml, suited to heating, boiling, distillation and general reaction duties. Its spherical body promotes even heat distribution under heating mantles or baths and supports swirling and mixing of larger liquid volumes with fewer local hot spots than flat-bottom flasks. The standard ground joint NS 45/40 ensures a reliable, interchangeable connection to condensers, adapters, dropping funnels and other NS components in single- or multi-piece assemblies. Supplied in packs of 10 pieces, the flasks serve teaching laboratories, research groups and routine wet-chemistry environments that need a one-litre capacity together with consistent joint geometry. Design follows common European NS joint conventions, so the vessels fit readily into established glassware sets for organic synthesis, sample preparation and analytical workflows. These round-bottom flasks from manufacturer Dinkelberg are made in the Czech Republic and classified under laboratory materials for glass reaction vessels. They provide a practical standardised option wherever NS 45/40 connectivity and a 1000 ml working volume are required.
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
- Nominal volume: 1000 ml
- Ground joint: NS 45/40
- Country of origin: Czech Republic
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Questions about Flask with round bottom, with SJ 45/40, 1000ml, 10/PK
What is this article?
Flask with round bottom, with SJ 45/40, 1000ml, 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?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.