Description
Flat-bottom flask with NS 45/40 ground joint and a nominal capacity of 4000 ml is laboratory glassware for larger-volume chemistry, preparative work, and stable bench operations. The flat base allows the vessel to stand firmly without a support ring, which is useful for mixing, temporary holding of bulk solutions, and setups that benefit from a wide, stable footprint at higher fill volumes. The standardised NS 45/40 joint provides a secure interface to compatible condensers, dropping funnels, stoppers, and adapters used across teaching and research laboratories. Delivered as a pack of 2 pieces, the format suits laboratories that need substantial working volume without stocking large numbers of oversized vessels. These flat-bottom flasks from manufacturer Dinkelberg originate from the Czech Republic and belong to standard laboratory material categories serving analytical, synthetic, and educational environments. The 4000 ml capacity together with the NS 45/40 joint supports scale-oriented solvent handling, intermediate storage, and multi-step procedures where joint compatibility remains essential. Clear indication of joint size and volume assists correct matching with existing ground-joint assemblies and everyday laboratory workflows.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 2 pc(s)
- Product type: Flat-bottom flask
- Ground joint: NS 45/40
- Capacity: 4000 ml
- Country of origin: Czech Republic
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Questions about Flask, flat bottom with SJ 45/40, 4000ml, 2/PK
What is this article?
Flask, flat bottom with SJ 45/40, 4000ml, 2/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.