Description
Three-necked round-bottom flask, DURAN® is a multi-neck laboratory flask for setups that demand larger, uniform ground joints on all three ports. This 500 ml flask features side necks 29/32 and a centre neck 29/32, enabling robust connection of condensers, stirrer assemblies, dropping funnels or other 29/32 accessories in parallel. The round-bottom shape supports consistent heating and mixing during synthetic and preparative operations. Supplied as 1 pc and weighing 0,230 kg, it integrates with standard laboratory stands and clamps. DURAN® glass and matching 29/32 joints promote compatibility within established ground-glass systems. This configuration from manufacturer Lenz is useful when equal large necks are preferred for higher vapour throughput or bulkier fittings on every port. Clear specification of side necks 29/32 and centre 29/32 simplifies ordering alongside existing glassware. Suitable for research, process development and teaching laboratories that need a 500 ml three-neck round-bottom flask with full 29/32 jointing.
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: 29/32
- Centre neck: 29/32
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Questions about Three-necked round-bottom flask, DURAN®, 500 ml, side necks 29/32, centre 29/32
What is this article?
Three-necked round-bottom flask, DURAN®, 500 ml, side necks 29/32, 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?
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.