Beschrijving
Separating funnel 2000 ml, pear-shaped and ungraduated, with PTFE key NS 18,8/6 mm serves liquid–liquid extractions and phase separations in laboratory settings. Fabricated from borosilicate glass 3.3, the funnel conforms to the pear-shaped geometry of ISO 4800 and is left ungraduated so that phase interfaces remain clearly visible. The PTFE key with NS 18,8/6 mm bore offers chemical resistance and precise flow control, while the PE stopper with NS 29/32 joint securely closes the top. Nominal volume is 2 l and net weight is 0,819 kg; supply is as one piece. The NS 29/32 joint size ensures compatibility with standard laboratory stoppers and fittings. Available from manufacturer Rettberg, the funnel brings together the thermal and chemical stability of borosilicate glass 3.3 and the inert performance of a PTFE stopcock. The pear-shaped body facilitates effective phase collection and complete drainage through the key, supporting analytical and preparative separation procedures that require robust, chemically resistant glassware of larger capacity.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Separating funnel
- Nominal volume: 2000 ml (2 l)
- Shape: Pear-shaped (ISO 4800)
- Material: Borosilicate glass 3.3
- Stopcock: PTFE key NS 18,8/6 mm bore
- Technical Information Sheet:
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Questions about Separatory funnel, 2000 ml, conical, non-grad., PTFE plug size 18,8/6 mm,
What is this article?
Separatory funnel, 2000 ml, conical, non-grad., PTFE plug size 18,8/6 mm, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Rondbodemkolven, inside Bekerglazen & kolven, in Labmateriaal.
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 Bekerglazen & kolven. The sub-category is Rondbodemkolven. The catalogue is Labmateriaal.
Shelves beside this one are Bekerglazen, Erlenmeyerkolven, Reactievaten & mantelvaten, Kolven met vlakke bodem, Kolven (overig) and Bekerglas- & kolfaccessoires.
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.