Description
Three-necked round-bottom flask, DURAN® is a multi-neck laboratory flask with a 2000 ml working volume, side necks 19/26 and a centre neck 24/29. The round-bottom body and three ground-glass joints support closed multi-port assemblies typical of synthesis, reflux and distillation work in the laboratory. Side necks 19/26 accept standard jointed accessories such as dropping funnels, gas inlets or thermometers, while the centre joint 24/29 provides a primary port for a condenser, stirrer guide or similar fitting. Supplied as 1 pc and weighing 0,683 kg, this DURAN® flask from manufacturer Lenz fits common ground-joint glassware trains used in organic and preparative chemistry. The three-neck layout keeps the reaction space accessible without repeated opening of the vessel, helping maintain controlled conditions during heating and mixing. Capacity, neck sizes and the DURAN® designation define this variant clearly for catalogue selection among related round flasks with ground glass joints. It is intended for routine laboratory setups that require a 2000 ml three-necked round-bottom configuration with the stated joint combination.
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
- Material: DURAN®
- Capacity: 2000 ml
- Side necks: 19/26
- Centre neck: 24/29
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Questions about Three-necked round-bottom flask, DURAN®, 2000 ml, side necks 19/26, centre 24/29
What is this article?
Three-necked round-bottom flask, DURAN®, 2000 ml, side necks 19/26, centre 24/29 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.