Description
Double neck round flask, DURAN®, 100 ml is a ground-joint laboratory vessel for reactions, distillations and multi-port setups that need simultaneous access to the contents. The flask combines a centre neck NS 29/32 with a parallel side neck NS 14/23, so condensers, dropping funnels, gas inlets or thermometers can be fitted securely while the round-bottom body supports even heating and mixing. Made from DURAN® glass and offered as a single piece with a weight of 0,083 kg, it belongs to the standard range of round flasks with ground glass joints used across preparative chemistry, solvent work and teaching laboratories. The parallel side-neck layout keeps assemblies compact on the bench or in a heating mantle. This configuration from manufacturer Lenz matches common NS joint accessories and suits reflux, inert blanketing and stepwise synthesis where clear visual control of the reaction mixture is required. The 100 ml capacity is practical for small-scale preparations and method development without excess headspace.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Double neck round flask
- Glass type: DURAN®
- Capacity: 100 ml
- Centre neck: NS 29/32
- Side neck: parallel NS 14/23
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Questions about Double neck round flask, DURAN®, 100 ml, side neck parallel NS 14/23, 1 unit(s)
What is this article?
Double neck round flask, DURAN®, 100 ml, side neck parallel NS 14/23, 1 unit(s) 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.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.