Description
Pointed flask 50 ml NS 19/26 is a laboratory glassware vessel designed for controlled handling of moderate liquid volumes in synthesis, analytical chemistry and sample work-up. Produced from borosilicate glass 3.3 as clear glass, it incorporates a single neck with standard ground joint NS 19/26 for secure coupling to condensers, adapters and other jointed apparatus. Outer diameter is 51 mm and overall height is 105 mm; the pointed bottom gathers residual liquid at the tip, facilitating efficient recovery and transfer during distillation, concentration or isolation steps. The 50 ml nominal volume balances working capacity with low hold-up, making the flask suitable for small- to medium-scale reactions. Supplied in packs of 10 pieces from manufacturer Witeg, these flasks provide the thermal-shock resistance and chemical durability characteristic of borosilicate glass 3.3. Transparent clear-glass walls enable straightforward visual monitoring of contents during heating, cooling and routine laboratory operations on the bench.
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: 50 ml
- Joint size: NS 19/26
- Outer diameter: 51 mm
- Height: 105 mm
- Material: Borosilicate glass 3.3
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Questions about Flask pear shaped 50 ml ST 19/26
What is this article?
Flask pear shaped 50 ml ST 19/26 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.