Description
Pointed flask 250 ml NS 14/23 is a clear laboratory flask manufactured from borosilicate glass 3.3 for chemical and analytical work. With a nominal volume of 250 ml and a precision ground joint NS 14/23, this single-neck vessel features a pointed bottom that supports efficient concentration and complete drainage of liquids. Outer diameter measures 85 mm and overall height reaches 145 mm, giving a compact footprint on the bench or in heating baths. The robust clear-glass construction from manufacturer Witeg provides the chemical resistance and thermal stability associated with borosilicate glass 3.3, making the flask suitable for heating, cooling and solvent handling. Packaged in units of 10 pieces, the pointed flask is ideal for preparative chemistry, sample work-up and routine analytical procedures where visual observation of the contents is essential. Its standardised NS joint ensures compatibility with common laboratory glassware and stoppers, while the pointed design aids recovery of small residual volumes after evaporation or crystallisation steps in everyday laboratory practice.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 250 ml
- Joint size: NS 14/23
- Outer diameter: 85 mm
- Height: 145 mm
- Material: Borosilicate glass 3.3
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Questions about Flask pear shaped 250 ml ST 14/23
What is this article?
Flask pear shaped 250 ml ST 14/23 is the article on this page. Luminix Health distributes Witeg 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.