Description
Two-necked flask, DURAN®, 100 ml is a compact laboratory vessel with a centre neck 24/29 and an angled side neck 19/26, allowing simultaneous use of a main apparatus line and a secondary port for addition, gas inlet, or temperature monitoring. The angled side neck improves accessibility and reduces interference between connected glassware during small-scale synthesis, reflux, or distillation. Made from DURAN® glass by manufacturer Lenz, the flask offers the chemical and thermal performance expected in everyday organic and inorganic laboratory work. The round-bottom geometry promotes uniform heating and efficient stirring on standard heating mantles or baths. With a 100 ml capacity, it is ideal for micro- to small-scale preparations, method development, and teaching experiments that still require two ground-joint connections. Supplied as one piece, it integrates directly into matching NS joint assemblies without unnecessary adapters. Approximate weight is 0,102 kg, making it a lightweight yet durable choice for research, quality-control, and educational laboratories using classic ground-glass apparatus.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Two-necked flask
- Capacity: 100 ml
- Centre neck: 24/29
- Side neck: 19/26, angled
- Glass: DURAN®
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Questions about Two-necked flask, DURAN®, 100 ml, angled side neck 19/26, centre 24/29
What is this article?
Two-necked flask, DURAN®, 100 ml, angled side neck 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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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.