Description
Flat-bottom flask narrow neck 4000 ml DURAN® is a large-capacity laboratory standing flask made from DURAN® borosilicate glass 3.3. It offers a nominal volume of 4 l with a narrow neck and beaded rim, designed for stable bench use when preparing, holding or processing substantial liquid volumes. Outer dimensions comprise a flask diameter of 207 mm, an overall height of 275 mm and a neck outer diameter of 50 mm, balancing a broad base with a practical neck opening for pouring and stoppering. The DURAN® glass material corresponds to borosilicate glass 3.3, the established choice for durable laboratory vessels requiring good thermal and chemical resistance. Available as 1 pc(s) from manufacturer Witeg, this Enghals flat-bottom flask suits preparative chemistry, media work and general laboratory storage where a 4000 ml narrow-neck standing flask is specified. Net weight is 0,914 kg. Dimensional clarity helps match the vessel to heating mantles, stands and closures used with other DURAN® flat-bottom flasks of comparable geometry.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Nominal volume: 4 l
- Material: Borosilicate glass 3.3
- Brand: DURAN®
- Neck type: Narrow neck
- Flask diameter: 207 mm
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Questions about Flasks, flat bottom, narrow neck, 4000 m
What is this article?
Flasks, flat bottom, narrow neck, 4000 m 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.