Description
Flat-bottom flask 50 ml NS 29/32 is a clear laboratory flask intended for routine chemistry, sample preparation and general liquid handling. It is manufactured from borosilicate glass 3.3, providing the thermal and chemical durability required for everyday laboratory work. The vessel has a nominal volume of 50 ml, a standard ground joint NS 29/32 and a medium neck. External dimensions are an outer diameter of 51 mm and a height of 95 mm, giving a compact, stable footprint on the bench or hotplate. The flat base ensures secure standing while the precision-ground joint allows reliable connection to condensers, adapters and other standard glassware. Clear glass construction permits unobstructed visual observation of contents and reactions. Offered in packs of 10 pieces from manufacturer Witeg, this standing flask is well suited to teaching laboratories, research groups and quality-control environments that need reusable borosilicate glassware with standardised joint sizes for heating, mixing, dissolution and short-term storage of liquids.
This article is part of Flat-bottom flasks, in Beakers & flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 50 ml
- Joint size: NS 29/32
- Neck type: Medium neck
- Outer diameter: 51 mm
- Height: 95 mm
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Flat bottom flask 50 ml ST 29/32
What is this article?
Flat bottom flask 50 ml ST 29/32 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Flat-bottom flasks, inside Beakers & flasks, in Labware.
A flat-bottom flask stands on the bench without a cork ring, which a round-bottom flask will not do. It is for heating on a plate and for simple setups. It is a poorer shape than a round bottom for even boiling under vacuum.
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 Flat-bottom flasks. The catalogue is Labware.
Shelves beside this one are Round-bottom flasks, Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, 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.

