Description
Flat-bottom flask, narrow neck, 500 ml, DURAN® is a standing laboratory flask in borosilicate glass 3.3 intended for larger-volume heating, mixing and intermediate storage. The narrow-neck (Enghals) form with beaded rim facilitates secure closure and controlled transfer, while the flat bottom provides a stable base on hotplates, stirrers and open benches. Nominal volume is 0,5 l; outer body diameter is 105 mm, overall height 163 mm and neck outer diameter 34 mm, proportions that remain compatible with standard clamps, rings and heating equipment. Made from DURAN® glass and available from Witeg, the flask delivers the thermal-shock resistance and chemical durability characteristic of borosilicate 3.3 laboratory glassware. Net weight is 0,16 kg per piece. Packed as 10 pc(s), these 500 ml flat-bottom flasks serve sample preparation, reagent batching, gentle boiling and general wet-chemistry workflows that benefit from a stable, narrow-neck vessel of intermediate capacity. Uniform geometry supports consistent handling in teaching, quality-control and research environments that specify classic DURAN® formats.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 0,5 l
- Material: Borosilicate glass 3.3
- Brand: DURAN®
- Neck type: Narrow neck (Enghals)
- Dimensions: Ø 105 mm × H 163 mm, neck A.Ø 34 mm
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Questions about Flasks, flat bottom, narrow neck, 500 ml
What is this article?
Flasks, flat bottom, narrow neck, 500 ml 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.