Description
Schlenk tube, 25 ml, with cone NS 14,5/23 is a precision laboratory vessel designed for the safe handling of air- and moisture-sensitive substances under inert atmosphere or vacuum. Constructed from borosilicate glass 3.3, it incorporates a lateral glass stopcock with solid glass plug (NS 14,5/2,5 mm bore) and a 9 mm olive for connection to vacuum or inert-gas lines. The 25 ml nominal volume is practical for small- to medium-scale synthetic chemistry, organometallic reactions and routine Schlenk-line operations requiring exclusion of oxygen and moisture. Supplied as a single piece with a net weight of 0,077 kg, the tube provides the chemical resistance and thermal stability expected of borosilicate glass 3.3. The ground joint NS 14,5/23 guarantees compatibility and reliable sealing with standard laboratory glassware. This Schlenk apparatus from manufacturer Rettberg enables efficient manipulation of reactive compounds during reaction setup, solvent transfer and sample storage. It is suitable for research laboratories, chemical synthesis facilities and academic institutions performing air-sensitive procedures. The robust stopcock assembly ensures dependable vacuum integrity and controlled gas flow throughout experimental work.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Nominal volume: 25 ml
- Joint size: NS 14,5/23
- Material: Borosilicate glass 3.3
- Stopcock: lateral glass stopcock with solid glass plug NS 14,5/2,5 mm bore and olive 9 mm
- Technical Information Sheet:
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Questions about Nitrogen tube, 25 ml, cone size 14,5/23, side stopcock 2,5 mm bore,
What is this article?
Nitrogen tube, 25 ml, cone size 14,5/23, side stopcock 2,5 mm bore, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Stopcocks & valves. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.