Beschrijving
Pear-shaped flask with standard ground joint is a compact laboratory vessel made from borosilicate glass 3.3, supplied without stopper and designed for distillation, concentration and small-scale reaction work. This 50 ml model carries a white capacity marking and a frosted label area for clear identification of contents. The Hülsenschliff joint is NS19/26, enabling direct connection to matching condensers, adapters and other ground-joint apparatus. The pear-shaped body concentrates residual volumes at the base, which is advantageous when working with limited sample amounts. Borosilicate glass 3.3 provides chemical durability and thermal stability for routine heating and cooling cycles. Delivered as a pack of 10 pieces from manufacturer Hecht, these flasks fit teaching, analytical and research workflows that rely on interchangeable NS glassware. The frosted writing field supports permanent or temporary labelling, while the capacity inscription aids quick volume checks. Suitable for organic synthesis setups, rotary evaporator use and general laboratory glassware assemblies requiring a stopper-free pear flask.
This article is part of Flasks (other), in Beakers & flasks.
Key features
- Pack size: 10 pc(s)
- Product type: Pear-shaped flask with standard ground joint
- Material: Borosilicate glass 3.3
- Volume: 50 ml
- Ground joint: NS19/26
- Stopper: Without stopper
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Questions about Flasks, rotary evaporators with ground socket, Boro 3.3, printing white,
What is this article?
Flasks, rotary evaporators with ground socket, Boro 3.3, printing white, is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Kolven (overig), inside Bekerglazen & kolven, in Labmateriaal.
These are the flasks that are not a plain beaker, Erlenmeyer, round bottom or flat bottom: odd shapes, special necks, flasks defined by a use. The volume and the joint, if there is one, still have to match the setup.
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 Kolven (overig). The catalogue is Labmateriaal.
Shelves beside this one are Rondbodemkolven, Bekerglazen, Erlenmeyerkolven, Reactievaten & mantelvaten, Kolven met vlakke bodem 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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Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.