Description
Two-necked flask, DURAN®, 100 ml is a multi-neck laboratory vessel designed for chemical reactions and preparative work that need two concurrent ground-glass ports. The flask combines a centre neck NS 14/23 with an angled side neck NS 14/23, enabling secure attachment of condensers, addition funnels, temperature probes or inert-gas lines. Its 100 ml working volume is practical for routine organic synthesis, distillations, extractions and intermediate-scale sample preparation in research and teaching environments. DURAN® glass provides the joint accuracy and thermal behaviour expected of standard laboratory round flasks. The angled side neck improves ergonomics when building compact assemblies on retort stands or heating mantles and helps keep connected apparatus stable. Offered as one piece weighing 0,100 kg, the flask fits existing NS 14/23 glassware inventories without adapters. Manufactured by Lenz, this two-necked DURAN® flask supports flexible, leak-tight experimental setups in analytical, synthetic and educational laboratories. Defined joint dimensions allow rapid selection of matching stoppers, condensers and transfer lines.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Two-necked flask
- Material: DURAN®
- Capacity: 100 ml
- Centre neck: NS 14/23
- Side neck: angled NS 14/23
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Questions about Two-necked flask, DURAN®, 100 ml, angled side neck 14/23, centre 14/23
What is this article?
Two-necked flask, DURAN®, 100 ml, angled side neck 14/23, centre 14/23 is the article on this page. Luminix Health distributes Lenz 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.