Description
Pear-shaped flask 50 ml NS 19/26 Economy is a compact laboratory vessel intended for distillation, concentration and small-scale reaction work where the tapered base supports efficient drainage and recovery of residues. The flask is produced from clear borosilicate glass 3.3, a material recognised for chemical resistance and suitability under typical laboratory thermal conditions. It carries a standard ground joint NS 19/26 for connection to condensers, adapters and other jointed glassware. External diameter measures 51 mm and overall height is 105 mm, giving a practical footprint on the bench or in a heating mantle. With a nominal capacity of 50 ml, this Economy flask from manufacturer Witeg suits teaching laboratories, quality-control routines and preparative organic chemistry. The transparent body permits continuous visual observation of colour changes, phase behaviour and boiling. Supplied in packs of 10 pieces, the design offers a cost-conscious option for educational and high-throughput environments. Borosilicate glass 3.3 construction supports use with many common solvents and reagents in synthesis and sample-preparation workflows that benefit from the pointed base geometry.
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: 50 ml
- Ground joint: NS 19/26
- Outer diameter: 51 mm
- Height: 105 mm
- Material: Borosilicate glass 3.3
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Questions about Flask pear shaped 50 ml ST 19/26 Economy
What is this article?
Flask pear shaped 50 ml ST 19/26 Economy 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.