Description
Claisen-Vigreux pear-shaped flask 25 ml is a compact dual-neck laboratory vessel designed for small-scale distillation and reaction work. It offers a nominal volume of 0,025 l and is fitted with NS 14/23 ground joints on both the main neck and the side neck. The Claisen-Vigreux configuration combines the angled side arm of a Claisen flask with Vigreux-style indentations, supporting improved vapour-liquid contact in micro-scale setups. Two necks allow concurrent attachment of a condenser and an addition funnel or thermometer without extra adapters. Net weight is 0,039 kg and the flask is supplied as one piece. Manufactured by Witeg in Germany, this pear-shaped flask integrates readily into standard NS 14/23 glassware trains used in organic synthesis and preparative chemistry. The pointed base assists complete drainage of small residual volumes, while the matched joint sizes ensure compatibility with common laboratory connectors. Ideal for micro-distillations, fractional work-up and compact reaction assemblies requiring a Claisen-Vigreux side arm.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 0,025 l
- Joint size: NS 14/23
- Number of necks: 2
- Main neck: NS 14/23
- Side neck: NS 14/23
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Questions about Flasks, pear shaped, Claisen-Vigreux, 2
What is this article?
Flasks, pear shaped, Claisen-Vigreux, 2 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.