Description
Schlenk flask 250 ml with socket NS 14,5/23 is a single-neck laboratory vessel intended for inert-atmosphere and vacuum techniques. Fabricated from borosilicate glass 3.3, it features one ground joint NS 14,5/23 that mates with standard Schlenk lines and related glassware. A lateral PTFE valve with an opening range of 0 to 3 mm enables regulated gas or vacuum control, and the 8 mm olive offers a reliable tubing connection. Nominal volume is 250 ml and net weight is 0,124 kg. As Schlenk apparatus it functions as a round-bottom, ground-joint, distillation or receiving flask for air-sensitive chemistry, solvent handling and sample collection. This model from manufacturer Rettberg is appropriate for synthetic laboratories that rely on repeated evacuation and inert-gas back-filling. The single-neck format keeps the setup compact, while the side-arm valve streamlines gas management on the bench. Borosilicate glass 3.3 construction aligns with routine laboratory demands for chemical and thermal service in Schlenk-line workflows.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 250 ml
- Joint size: NS 14,5/23
- Material: Borosilicate glass 3.3
- Lateral valve: PTFE 0 - 3 mm
- Olive diameter: 8 mm
- Technical Information Sheet:
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Questions about Nitrogen flask, 250 ml, socket size 14,5/23, side PTFE-valve 0 - 3 mm,
What is this article?
Nitrogen flask, 250 ml, socket size 14,5/23, side PTFE-valve 0 - 3 mm, is the article on this page. Luminix Health distributes Rettberg 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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