Description
Separating funnel 2000 ml pear-shaped graduated with PTFE key NS 18,8/6 mm is large-capacity laboratory glassware designed for liquid-liquid extractions and phase separations at preparative scale. Constructed from borosilicate glass 3.3, the funnel offers excellent chemical resistance and thermal stability for repeated laboratory use. Its pear-shaped body (BF) is manufactured to ISO 4800 and carries graduations that facilitate accurate observation of organic and aqueous layer volumes. The PTFE key with NS 18,8/6 mm bore delivers smooth, grease-free stopcock performance and reliable sealing even with aggressive solvents. A PE stopper matches the NS 29/32 ground joint at the top, providing a secure closure during mixing and settling steps. Nominal volume is 2 l and net weight is 0,820 kg, giving ample working capacity while remaining manageable on a ring stand. This separating funnel from manufacturer Rettberg is suitable for solvent extractions, washing procedures, product isolation and quality-control applications that demand sharp phase boundaries and controlled drainage of larger volumes.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 2 l
- Material: Borosilicate glass 3.3
- Shape: Pear-shaped (BF)
- Stopcock: PTFE key NS 18,8/6 mm bore
- Ground joint: NS 29/32 with PE stopper
- Technical Information Sheet:
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Questions about Separatory funnel, 2000 ml, conical, grad., PTFE plug size 18,8/6 mm,
What is this article?
Separatory funnel, 2000 ml, conical, grad., PTFE plug size 18,8/6 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.
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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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.