Description
The 2-neck flask, 2000 ml, equipped with a centre neck NS 29/32 and a straight side neck NS 29/32 serves as a robust round-bottom vessel for larger-scale distillation, reflux and collection operations. Both openings are precision ground-glass sockets in the NS 29/32 standard, ensuring leak-tight joints with common laboratory glassware such as condensers, addition funnels and receivers. Made from borosilicate glass 3.3, the flask offers the chemical durability and thermal stability expected in preparative organic chemistry and solvent recycling. The straight side-neck arrangement maintains a compact footprint while giving independent access for reagents, inert-gas lines or temperature probes. Nominal capacity is 2 l and net weight is 0,513 kg, providing a practical balance between working volume and handling. Supplied as a single piece from manufacturer Rettberg, this multi-neck flask is intended for use as a distillation flask, receiving flask or general reaction vessel wherever two simultaneous ground-joint connections are needed. It fits standard heating mantles and supports typical laboratory workflows in research and production environments.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Nominal volume: 2000 ml
- Material: Borosilicate glass 3.3
- Centre neck: NS 29/32 socket
- Side neck: NS 29/32 socket (straight)
- Number of necks: 2
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about 2-neck round bottom flask, 2000 ml, mn size 29/32, sn size 29/32
What is this article?
2-neck round bottom flask, 2000 ml, mn size 29/32, sn size 29/32 is the article on this page. Luminix Health distributes Rettberg 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.