Description
Round-bottom flask 4000 ml with three necks is a multi-neck laboratory vessel featuring one centre neck and two side necks, all finished with NS 29/32 ground joints. The side necks are angled at 20°, allowing convenient attachment of condensers, dropping funnels or other apparatus with reduced steric interference. Made from clear borosilicate glass 3.3, the flask provides the chemical durability and thermal performance expected for distillation, synthesis and receiving applications. Its nominal volume of 4 l suits larger-scale preparative work and solvent handling. Supplied as a single piece with a net weight of 0,877 kg, this flask from manufacturer Witeg integrates readily into standard ground-joint assemblies. The spherical base promotes even heat distribution when used with heating mantles or baths, supporting reliable operation in organic chemistry, extraction and general laboratory processes that require robust multi-neck glassware.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Nominal volume: 4 l
- Number of necks: 3
- Centre neck: NS 29/32
- Side necks: two angled 20° NS 29/32
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 4000 ml three necks CN + two SN
What is this article?
Round bottom flask 4000 ml three necks CN + two SN is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.