Description
Round-bottom flask 25 ml NS 14/23 amber stained is a small laboratory flask with a nominal volume of 0,025 l and a precision ground joint NS 14/23. Fabricated from borosilicate glass 3.3 and amber stained for light protection, it is intended for handling photosensitive substances while retaining the chemical and thermal resistance typical of borosilicate glassware. The single medium neck supports standard stoppers and adapters. With an outer diameter of 41 mm and a height of 75 mm, the compact round-bottom form is ideal for heating in oil or water baths, small-scale reactions and collection of distillates. This flask from manufacturer Witeg is supplied in packs of 10 pieces and has a net weight of 0,029 kg per unit. It is well suited for organic synthesis, photolabile sample storage, micro-scale distillations and general laboratory work requiring an amber-stained round-bottom vessel with NS 14/23 joint.
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: 0,025 l
- Ground joint: NS 14/23
- Neck type: Medium neck, single
- Material: Borosilicate glass 3.3, amber stained
- Outer diameter: 41 mm
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Round bottom flask 25 ml ST 14/23 amber stained
What is this article?
Round bottom flask 25 ml ST 14/23 amber stained 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.
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.

