Description
Schlenk receiving flask 250 ml NS 14/23 with straight angle valve stopcock is a round laboratory flask designed for collecting larger distillate volumes and for manipulations under vacuum or inert atmosphere. It is fitted with a standard ground joint NS 14/23 and a straight angle valve stopcock of the Economy type that uses a PTFE spindle. The stopcock bore measures 3 mm while the lateral olive has a diameter of 8 mm, allowing straightforward connection to vacuum manifolds or inert-gas lines. Fabricated from borosilicate glass 3.3, the flask provides chemical resistance and thermal stability for everyday laboratory service. Supplied as a single piece with a net weight of 0,11 kg, this receiving flask from manufacturer Witeg belongs to the established range of ground-joint and distillation glassware. The round-bottom form supports even heat transfer and efficient product recovery. Its 250 ml capacity makes it suitable for larger-scale synthetic work, fraction collection and Schlenk techniques requiring exclusion of air or moisture. Typical uses encompass round-bottom flask applications, ground-joint assemblies, distillation trains and dedicated receiving positions in research and preparative laboratories.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Capacity: 250 ml
- Ground joint: NS 14/23
- Stopcock: Straight angle valve Economy with PTFE spindle
- Bore diameter: 3 mm
- Side olive: 8 mm
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Questions about Collecting flask Schlenk 250 ml ST 14/23 straight
What is this article?
Collecting flask Schlenk 250 ml ST 14/23 straight is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.