Description
Round-bottom flask 2000 ml NS 29/32 amber stained is a single-neck laboratory flask intended for distillation, collection and general reaction work with light-sensitive media. It is manufactured from borosilicate glass 3.3 and carries a medium neck finished with a standard ground joint NS 29/32. The amber staining reduces light transmission, helping to protect photosensitive samples and reagents during handling and storage. Nominal volume is 2 l; outer diameter measures 166 mm and overall height 260 mm, giving a stable, well-proportioned vessel for bench and apparatus use. Supplied in packs of 10 pieces from manufacturer Witeg, the flask fits common laboratory setups as a distillation flask, receiving flask or reaction vessel. The combination of borosilicate 3.3 construction, defined NS 29/32 joint and amber colouring makes it suitable for routine organic synthesis, solvent recovery and preparative work where both chemical resistance and light protection are required. Categories include round-bottom flasks, ground-joint flasks, distillation flasks and receiving flasks.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Material: Borosilicate glass 3.3
- Nominal volume: 2 l
- Joint size: NS 29/32
- Neck type: Medium neck, 1 neck
- Outer diameter: 166 mm
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Questions about Round bottom flask 2000 ml ST 29/32 amber stained
What is this article?
Round bottom flask 2000 ml ST 29/32 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. Delivery across Europe, two to five days when in stock. 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.

