Beschreibung
Schlenk flask, 500 ml, with socket NS 14,5/23 and lateral high-vacuum PTFE valve (fine thread) is precision laboratory glassware for air- and moisture-sensitive chemistry. Fabricated from borosilicate glass 3.3, the vessel combines chemical durability with thermal shock resistance required for Schlenk-line work, inert-atmosphere reactions and vacuum transfers. The side-mounted high-vacuum PTFE valve uses a fine thread for smooth, controlled adjustment and offers a continuous passage range of 0–8 mm; the olive measures Ø 9 mm for reliable tubing connections. A standard ground joint NS 14,5/23 ensures broad compatibility with common laboratory stoppers, condensers and adapters. With a nominal volume of 500 ml and a net weight of 0,220 kg, the flask is practical for preparative-scale organometallic synthesis, catalysis studies and other oxygen-sensitive procedures. This Schlenk apparatus from manufacturer Rettberg is supplied as a single piece and supports secure isolation of reactive mixtures under vacuum or inert gas. The robust construction and precise valve geometry make it a dependable component of any Schlenk or vacuum manifold setup in research and development laboratories.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Nominal volume: 500 ml
- Joint size: NS 14,5/23
- Material: Borosilicate glass 3.3
- Valve: Lateral HV PTFE valve (fine thread)
- Passage: 0–8 mm
- Technical Information Sheet:
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Questions about Nitrogen flask, 500 ml, socket size 14,5/23, PTFE high vacuum-valve
What is this article?
Nitrogen flask, 500 ml, socket size 14,5/23, PTFE high vacuum-valve is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Laborbedarf.
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 Laborbedarf.
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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