Description
Schlenk flask 250 ml NS 29/32 is a versatile laboratory round-bottom flask intended for inert-atmosphere and vacuum operations in synthetic chemistry. Equipped with a precision ground joint NS 29/32 and a side stopcock angled at 45° with hollow plug, it allows controlled connection to vacuum or inert-gas lines via an 8 mm hose fitting. Made of borosilicate glass, the vessel offers high chemical durability and thermal shock resistance for demanding organometallic, inorganic and distillation work. The 250 ml capacity accommodates medium-scale reactions, solvent transfers and sample collection under exclusion of air and moisture. Supplied as one piece with a net weight of 0,143 kg from manufacturer Witeg, the flask fits standard Schlenk manifolds and ground-joint apparatus without adapters. Its sturdy design withstands repeated thermal cycling while preserving vacuum tightness. Suitable for research, process development and advanced teaching laboratories, this Schlenk flask delivers dependable joint geometry and convenient lateral access for safe handling of sensitive reagents and intermediates.
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
- Joint size: NS 29/32
- Material: Borosilicate glass
- Side stopcock: 45° with hollow plug
- Hose connection: 8 mm
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Questions about Nitrogen flask 250 ml ST 29/32
What is this article?
Nitrogen flask 250 ml ST 29/32 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.