Description
Round-bottom flask, wide neck, 50 ml, DURAN® is a single-neck laboratory flask made from borosilicate glass 3.3 for everyday chemical handling. It provides a nominal volume of 50 ml and a wide neck finished with a beaded rim, which eases filling, cleaning and addition of solids or larger accessories. Neck outer diameter is 34 mm, body outer diameter 51 mm and overall height 105 mm, yielding a compact form for the bench, stand or heating bath. The spherical base supports uniform heat distribution during gentle heating, evaporation or reflux-style work. Offered in a pack of 10 pieces, this DURAN® glassware from manufacturer Witeg is suited to reaction, distillation and receiving duties in research, quality-control and teaching laboratories. Borosilicate glass 3.3 delivers the thermal shock resistance and chemical durability expected of standard laboratory glass. Transparent walls allow continuous visual checks of contents and phase behaviour. The wide-neck geometry is especially practical whenever repeated access to the interior is needed. Net weight is 0,048 kg per flask, keeping handling light while remaining stable in clamps and baths.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Brand: DURAN®
- Nominal volume: 50 ml
- Material: Borosilicate glass 3.3
- Neck type: Wide neck, beaded rim, 1 neck
- Dimensions: neck A.Ø 34 mm, A.Ø 51 mm, height 105 mm
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Questions about Flasks, round bottom, wide neck, 50 ml,
What is this article?
Flasks, round bottom, wide neck, 50 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.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.