Description
Three-necked round-bottom flask, DURAN® is a multi-neck laboratory flask intended for reaction, reflux and distillation work that needs several ports at once. This 500 ml vessel has two side necks with 14/23 ground joints and a centre neck with 29/32, allowing condensers, addition funnels, gas inlets or probes to be connected in a single setup. The round-bottom geometry aids even heat distribution and stirring in typical laboratory heating baths or mantles. Delivered as 1 pc with a weight of 0,200 kg, the flask is sized for standard supports and clamps used in preparative chemistry. DURAN® construction and standardised joints support interchange with common laboratory glassware systems. Available from manufacturer Lenz, the design suits organic synthesis, scale-up trials and multi-component apparatus where a central 29/32 neck is paired with smaller 14/23 side necks. Explicit joint sizing helps match existing ground-glass trains without guesswork. Appropriate for research, teaching and routine laboratory applications requiring a 500 ml three-neck round-bottom flask with this neck configuration.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Three-necked round-bottom flask
- Glass: DURAN®
- Capacity: 500 ml
- Side necks: 14/23
- Centre neck: 29/32
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Questions about Three-necked round-bottom flask, DURAN®, 500 ml, side necks 14/23, centre 29/32
What is this article?
Three-necked round-bottom flask, DURAN®, 500 ml, side necks 14/23, centre 29/32 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?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.