Description
Pear shape flasks DURAN® with standard ground joint 14/23 and a 25 ml capacity are compact laboratory vessels designed for small-scale reaction, distillation and concentration work. The pear-shaped body concentrates residual volumes toward the base, supporting efficient recovery of limited sample amounts and clear observation of the liquid phase during heating or cooling. A precision standard ground joint 14/23 enables secure connection to condensers, adapters, stoppers and other jointed glassware in modular assemblies. Manufactured from DURAN® glass by Lenz, the flask suits routine organic synthesis, sample preparation and teaching laboratories where reliable joint geometry and chemical resistance are required. Supplied as a single unit with a net weight of 0,030 kg, it integrates easily into existing ground-joint setups without additional adapters for NS 14/23 interfaces. The pear profile is particularly practical when working with viscous residues or when complete drainage of the vessel is important. Ideal for preparative workflows, solvent exchange steps and small-volume evaporations that demand a stable, jointed glass flask of defined capacity.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Pear shape flask
- Glass: DURAN®
- Standard ground joint: 14/23
- Capacity: 25 ml
- Weight: 0,030 kg
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Questions about Pear shape flasks, DURAN®, standard ground joint 14/23, 25 ml, 1 pc
What is this article?
Pear shape flasks, DURAN®, standard ground joint 14/23, 25 ml, 1 pc 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.
