Description
4-neck flask with a nominal volume of 1000 ml incorporates a temperature jacket for precise thermal control during laboratory reactions and distillations. Constructed from borosilicate glass 3.3, the vessel features a centre neck NS 29/32, two side necks NS 29/32 and one side neck NS 14,5/23 angled at 7°, enabling flexible multi-port configurations for condensers, probes or addition funnels. A bottom drain valve adjustable from 0–10 mm allows controlled emptying without dismantling the setup. With a net weight of 0,930 kg, this round-bottom style flask supports efficient heating, cooling and mixing operations in chemical synthesis or sample preparation. Produced by manufacturer Rettberg, the design meets standard laboratory glassware requirements for durability and chemical resistance. Supplied as 1 pc, it is ideal for distillation, reaction and collection applications where jacketed temperature regulation and multi-neck access are essential for reproducible results in research or production environments.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 1000 ml
- Material: Borosilicate glass 3.3
- Number of necks: 4
- Joint sizes: Centre NS 29/32, 2x NS 29/32, 1x NS 14,5/23 at 7°
- Bottom drain valve: 0–10 mm
- Technical Information Sheet:
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Questions about 4-neck flask, 1000 ml, temp.-jacket, mn size 29, sn 2x size 29, 1x size 14,5
What is this article?
4-neck flask, 1000 ml, temp.-jacket, mn size 29, sn 2x size 29, 1x size 14,5 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.