Description
Three-necked round-bottom flask, DURAN®, 100 ml is a compact multi-neck laboratory flask with ground glass joints for small-scale synthesis, reflux and distillation. It provides a centre neck 24/29 together with side necks 19/26, allowing concurrent connection of a condenser, thermometer, addition funnel or gas inlet on a single vessel. Supplied as one piece and weighing 0,120 kg, this DURAN® flask from manufacturer Lenz is well suited to research, method development and teaching experiments that require a 100 ml working volume. The round-bottom geometry supports even heating in mantles or oil baths, while the three-neck layout keeps the setup closed and organised. Standard joint sizes ensure compatibility with common European laboratory glassware and adapters. Clear DURAN® glass enables direct observation of mixing, boiling and colour changes. Typical uses include organic micro-preparations, solvent exchanges and controlled-atmosphere reactions in analytical, academic and quality-control laboratories where space and sample economy matter.
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 type: DURAN®
- Capacity: 100 ml
- Centre neck: 24/29
- Side necks: 19/26
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Questions about Three-necked round-bottom flask, DURAN®, 100 ml, side necks 19/26, centre 24/29
What is this article?
Three-necked round-bottom flask, DURAN®, 100 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.