Description
Round-bottom flask 4000 ml NS 45/40 is a single-neck laboratory flask manufactured from borosilicate glass 3.3 in clear glass. With a nominal volume of 4 l and a standard ground joint NS 45/40 on a medium neck, it supports distillation, synthesis and collection tasks that require larger working volumes. The vessel has an outer diameter of 207 mm and a height of 310 mm, dimensions suited to common laboratory heating mantles, baths and stands. This flask from manufacturer Witeg is produced as clear borosilicate glass 3.3 and is used as a round-bottom, ground-joint, distillation or receiving flask in combination with matching taper components. Its single medium neck with NS 45/40 joint enables straightforward coupling to condensers, adapters and other standard glassware. Supplied as 1 piece, it meets the needs of chemical, pharmaceutical and research laboratories seeking robust large-volume round-bottom flasks with defined geometry and joint compatibility for preparative and process-scale work.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 4 l
- Joint size: NS 45/40
- Outer diameter: 207 mm
- Height: 310 mm
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 4000 ml ST 45/40
What is this article?
Round bottom flask 4000 ml ST 45/40 is the article on this page. Luminix Health distributes Witeg 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.
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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.