Beschrijving
DURAN® pear-shaped flask with standard ground joint is laboratory glassware specifically shaped for efficient handling of very small sample volumes. The 100 ml nominal capacity and conical body concentrate liquids at the base, making the vessel particularly suitable for micro-scale reactions, distillations and extractions. A precision NS 14/23 joint provides a leak-tight, interchangeable connection to columns, thermometers, dropping funnels and other ground-joint components. Produced from borosilicate glass 3.3 by manufacturer Duran/DWK Life Sciences, the flask combines high chemical resistance with excellent thermal shock performance for safe heating in baths or mantles. The white graduation and marking print is permanently fired into the glass surface for long-term legibility. Single-neck construction allows straightforward clamping to stands while supporting evaporation, concentration and small-volume synthesis workflows. Supplied in packs of 10 pieces, each flask has a net weight of 0,053 kg and is intended for routine use in research, analytical and preparative laboratories requiring reliable small-scale glass apparatus.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Storage temperature: Standard
- Nominal volume: 100 ml
- Joint size: NS 14/23
- Material: Borosilicate glass 3.3
- EAN: 4032051027619
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Questions about DURAN® Peervormige kolf, met standaard slijpstuk
What is this article?
DURAN® Peervormige kolf, met standaard slijpstuk is the article on this page. Luminix Health distributes DWK Life Sciences 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.
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.