Beschrijving
Flat-bottom flask, wide neck, 500 ml, DURAN® is a laboratory standing flask made from borosilicate glass 3.3 for general chemical and preparative work. The wide-neck design with beaded rim supports convenient filling, mixing and cleaning, while the flat base provides stable placement on the bench or heating surface. Nominal volume is 0,5 l, with an outer neck diameter of 50 mm, flask outer diameter of 105 mm and height of 163 mm. Manufactured from DURAN® glass and offered by Witeg, this flask combines thermal shock resistance with chemical durability typical of borosilicate 3.3 laboratory glassware. It suits sample preparation, reagent storage, heating and routine wet-chemistry workflows where a robust wide-neck vessel is required. Supplied in packs of 10 pieces, the flasks are intended for everyday laboratory use and integrate easily into standard glassware sets. Clear dimensional definition supports reproducible setup across teaching, quality-control and research environments.
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: Wide neck
- Outer neck diameter: 50 mm
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Questions about Flasks, flat bottom, wide neck, 500 ml,
What is this article?
Flasks, flat bottom, wide neck, 500 ml, is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Rondbodemkolven, inside Bekerglazen & kolven, in Labmateriaal.
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 Bekerglazen & kolven. The sub-category is Rondbodemkolven. The catalogue is Labmateriaal.
Shelves beside this one are Bekerglazen, Erlenmeyerkolven, Reactievaten & mantelvaten, Kolven met vlakke bodem, Kolven (overig) and Bekerglas- & kolfaccessoires.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.